Engine Mechanical - 3.2l Cadillac CTS I

Fastener Tightening Specifications

Fastener Tightening Specifications

Engine Mechanical Specifications (LY9)

Engine Mechanical Specifications (LY9)

Engine Mechanical Specifications (LA3)

Engine Mechanical Specifications (LA3)

Crankshaft Main Bearing Selection Specifications

Crankshaft Main Bearing Selection Specifications

Sealers, Adhesives, and Lubricants

Sealers, Adhesives, and Lubricants

Scheme 1

Scheme 2

Scheme 3

Scheme 4

Scheme 5

Engine Identification

The Vehicle Identification Number (VIN) Derivative (2) is located on the lower right side of the engine block and is a nine digit number stamped or laser etched onto the engine at the vehicle assembly plant. If reading the identification number from the left, the following information can be obtained

1. The first digit identifies the vehicle division.
2. The second digit identifies the model year.
3. The third digit identifies the assembly plant.
4. The fourth through ninth digits are the last six digits of the Vehicle Identification Number (VIN).

Engine displacement (1) is cast into the engine block under the starter motor.

Scheme 6

Diagnostic Starting Point - Engine Mechanical

Begin the system diagnosis by reviewing the Disassembled Views , Engine Component Description , Lubrication Description and the Drive Belt System Description . Reviewing the description and operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the description and operation information will also help you determine if the condition described by the customer is normal operation. Refer to Symptoms - Engine Mechanical in order to identify the correct procedure for diagnosing the system and where the procedure is located.

Strategy Based Diagnostics

1. Perform a «Diagnostic Starting Point - Engine Mechanical»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__diagnostic-starting-point-engine-mechanical) before using the symptom tables, if applicable.
2. Review the system operations in order to familiarize yourself with the system functions. Refer to «Disassembled Views»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) , «Engine Component Description»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) , «Lubrication Description»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) and the «Drive Belt System Description»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__drive-belt-system-description) .

All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always be used in order to resolve a system problem. The diagnostic flow is the place to start when repairs are necessary. For a detailed explanation, refer to Strategy Based Diagnosis in General Information.

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the Engine. Refer to «Checking Aftermarket Accessories»(/cadillac/cts/i-2002-2007/remont/body-electrical/#wiring-systems-diagnostic-information-and-procedures__checking-aftermarket-accessories) in Wiring Systems.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
3. Check for the correct oil level, proper oil viscosity, and correct filter application.
4. Verify the exact operating conditions under which the concern exists. Note factors such as engine RPM, ambient temperature, engine temperature, amount of engine warm-up time, and other specifics.
5. Compare the engine sounds-if applicable to a known good engine and make sure you are not trying to correct a normal condition.

Intermittent

Test the vehicle under the same conditions that the customer reported in order to verify the system is operating properly.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Base Engine Misfire without Internal Engine Noises»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__base-engine-misfire-without-internal-engine)
2. «Base Engine Misfire with Abnormal Internal Lower Engine Noises»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__base-engine-misfire-with-abnormal-internal)
3. «Base Engine Misfire with Abnormal Valve Train Noise»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__base-engine-misfire-with-abnormal-valve)
4. «Base Engine Misfire with Coolant Consumption»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__base-engine-misfire-with-coolant-consumption)
5. «Base Engine Misfire with Excessive Oil Consumption»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__base-engine-misfire-with-excessive-oil)
6. «Engine Noise on Start-Up, but Only Lasting a Few Seconds»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-noise-on-start-up-but-only)
7. «Upper Engine Noise, Regardless of Engine Speed»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__upper-engine-noise-regardless-of-engine)
8. «Lower Engine Noise, Regardless of Engine Speed»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__lower-engine-noise-regardless-of-engine)
9. «Engine Noise Under Load»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-noise-under-load)
10. «Engine Will Not Crank - Crankshaft Will Not Rotate»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-will-not-crank-crankshaft)
11. «Engine Compression Test»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-compression-test)
12. «Oil Consumption Diagnosis»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-consumption-diagnosis)
13. «Oil Pressure Diagnosis and Testing»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-pressure-diagnosis-and-testing)
14. «Oil Leak Diagnosis»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l)

Base Engine Misfire without Internal Engine Noises

Base Engine Misfire without Internal Engine Noises

Base Engine Misfire with Abnormal Internal Lower Engine Noises

Base Engine Misfire with Abnormal Internal Lower Engine Noises

Base Engine Misfire with Abnormal Valve Train Noise

Base Engine Misfire with Abnormal Valve Train Noise

Base Engine Misfire with Coolant Consumption

Base Engine Misfire with Coolant Consumption

Base Engine Misfire with Excessive Oil Consumption

Base Engine Misfire with Excessive Oil Consumption

Engine Noise on Start-Up, but Only Lasting a Few Seconds

Engine Noise on Start-Up, but Only Lasting a Few Seconds

Upper Engine Noise, Regardless of Engine Speed

Upper Engine Noise, Regardless of Engine Speed

Lower Engine Noise, Regardless of Engine Speed

Lower Engine Noise, Regardless of Engine Speed

Engine Noise Under Load

Engine Noise Under Load

Engine Will Not Crank - Crankshaft Will Not Rotate

Engine Will Not Crank - Crankshaft Will Not Rotate

Coolant in Combustion Chamber

Coolant in Combustion Chamber

Coolant in Engine Oil

Coolant in Engine Oil

Engine Compression Test

1. Charge the battery if the battery is not fully charged.
2. Remove the coil pack from each cylinder head.
3. Remove all of the spark plugs.
4. Disable the ignition system, fuel injection, and open the throttle plates wide open, using a Tech 2 under the Compression Test screen.
5. Start with the compression gage at zero.
6. Turn the key to start position and release. The engine will automatically crank.
7. Make a compression check for each cylinder. Record the reading.
8. If a cylinder has low compression, inject approximately 15 ml, (1 tbsp) of engine oil into the combustion chamber through the spark plug hole. Recheck the compression and record the reading.
9. The minimum compression in any one cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kPa (100 psi). For example, if the highest pressure in any one cylinder were 1035 kPa (150 psi) the lowest allowable pressure for any other cylinder would be 725 kPa (105 psi). 1035 x 70 percent, 150 x 70 percent = 105. Normal - Compression builds up quickly and evenly to the specified compression for each cylinder. Piston Rings Leaking - Compression is low on the first stroke. Compression then builds up with the following strokes but does not reach normal. Compression improves considerably when you add oil. Valves Leaking - Compression is low on the first stroke. Compression usually does not build up on the following strokes. Compression does not improve much when you add oil. If two adjacent cylinders have lower than normal compression and injecting oil into the cylinders does not increase the compression, the cause may be a head gasket leaking between the cylinders.

Tools Required

J 35667-A Cylinder Head Leakdown Tester. See Special Tools and Equipment .

Testing Procedure

With the use of air pressure, a cylinder leakage test will aid in the diagnosis. Use the cylinder leakage test in conjunction with the engine compression test in order to isolate the cause of leaking cylinders.

1. Disconnect the negative battery cable.
2. Remove the spark plugs. Refer to «Spark Plug Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls.
3. Install the J 35667-A .
4. Measure each cylinder on the compression stroke, with both valves closed. IMPORTANT: Hold the crankshaft balancer bolt in order to prevent piston movement.
5. Apply air pressure, using the J 35667-A . Refer to the manufacturer's instructions.
6. Record the cylinder leakage readings for each cylinder. IMPORTANT: Normal cylinder leakage is from 12 to 18 percent. Make a note of any cylinder with more leakage than the other cylinders. Any cylinder with 30 percent leakage or more requires service.
7. Inspect the 4 primary areas in order to properly diagnose a leaking cylinder.
8. If air is heard from the intake or exhaust system, perform the following procedure: Remove the valve rocker arm cover of the suspect cylinder head. Ensure that both valves are closed. Inspect the cylinder head for a broken valve spring. Remove and inspect the suspect cylinder head. Refer to «Cylinder Head Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-cleaning-and-inspection) .
9. If air is heard from the crankcase system at the crankcase oil filler tube, perform the following procedure: Remove the piston from the suspect cylinder. Inspect the piston and connecting rod assembly. Refer to «Piston, Connecting Rod, and Bearings Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__piston-connecting-rod-and-bearings-cleaning) . Inspect the engine block. Refer to «Engine Block Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
10. If bubbles are found in the radiator, perform the following procedure: Remove and inspect both cylinder heads. Refer to «Cylinder Head Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-cleaning-and-inspection) . Inspect the engine block. Refer to «Engine Block Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
11. Remove the J 35667-A .
12. Install the spark plugs. Refer to «Spark Plug Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls. CAUTION: Refer to «Battery Disconnect Caution»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__battery-disconnect-caution) in Cautions and Notices.
13. Connect the negative battery cable.

Oil Consumption Diagnosis

Oil Consumption Diagnosis

Oil Pressure Diagnosis and Testing

1. After running the vehicle for a few minutes on a level surface, turn the engine off and allow for adequate drain-down time (2-3 minutes) and measure for a low oil level. Add the recommended grade engine oil and fill the crankcase until the oil level measures full on the oil level indicator.
2. Run the engine and verify low or no oil pressure on the vehicle gauge or light. Listen for a noisy valve train or a knocking noise.
3. Inspect for the following: Oil contamination Oil diluted by moisture or unburned fuel mixtures Improper oil viscosity for the expected temperature Incorrect or malfunctioning oil pressure sensor Incorrect or malfunctioning oil pressure gauge Plugged oil filter Malfunctioning oil bypass valve
4. Remove the oil pressure sensor at the front of the engine.
5. Install an oil pressure gauge and measure the engine oil pressure.
6. The minimum oil pressure of a warmed engine at idle is 150 kPa (21.7 psi).
7. If the engine oil pressure is below specifications, inspect the engine for one or more of the following: Worn or dirty oil pump Oil pump screen loose, plugged, or damaged Oil pump screen O-ring seal missing or damaged Malfunctioning oil pump pressure regulator valve Excessive bearing clearance Cracked, porous or restricted oil galleries Oil gallery plugs missing or incorrectly installed Broken valve lifters

Tool Required

J 39400 Leak Detector. See Special Tools and Equipment .

Most oil leaks are easily located by visual inspection and repaired by replacing and/or repairing the necessary parts.

Use the following steps in order to find the leak

1. Identify the fluid. Determine whether it is engine oil, automatic transmission fluid, or power steering fluid.
2. From what point is the fluid leaking? After running the vehicle at normal operating temperature, park the vehicle over a large sheet of paper. After a few minutes, you should be able to find the approximate location of the leak by the drippings on the paper.
3. Visually check around the suspected component. Check around the gasket mating surfaces for leaks. A mirror is useful for finding leaks in hard-to-reach areas.
4. If the leak still cannot be found, it may be necessary to clean the suspected area with a degreaser, steam or spray solvent. Clean the area well, then dry the area. Operate the vehicle for several miles at normal operating temperature and varying speeds. After operating the vehicle, visually check the suspected component. If you still cannot locate the leak, try using the powder or black light-and-dye method.

Perform the following steps in order to use the black light-and-dye method

1. Pour specified amount of dye into the leaking component system.
2. Operate the vehicle under normal operating conditions as directed by the J 39400 .
3. Direct the light toward the suspect area. The dyed fluid will appear as a yellow path leading to the source. See the J 39400 kit directions for the color of the fluid and the dye mix.

Perform the following steps in order to perform the powder method

1. Clean the suspected area.
2. Apply an aerosol-type powder-such as foot powder to the suspected area.
3. Operate the vehicle under normal operating conditions.
4. Visually inspect the suspected component. You should be able to trace the leak path over the white powder surface to the source.

Repairing the Leak

Once the origin of the leak has been pinpointed and traced back to its source, the cause of the leak must be determined in order for it to be repaired properly. If a gasket is replaced, but the sealing surface is damaged, the new gasket will not repair the leak. The surface must be repaired or replaced. Before attempting to repair a leak, be sure that the gasket and sealing surfaces are correct.

Perform the following steps in order to check for gasket leaks

1. Inspect the fluid level/pressure to see if it is too high.
2. Check the crankcase ventilation system for restrictions or malfunctioning components.
3. Inspect for improperly tightened fasteners or dirty/damaged threads.
4. Look for warped flanges or sealing surfaces.
5. Check for scratches, burrs, or other damage to the sealing surface.
6. Look for a damaged or worn gasket.
7. Check for cracking or porosity of the component.
8. Check for use of an improper sealant used - where applicable.

Perform the following steps in order to check for seal leaks

1. Inspect the fluid level/pressure to see if it is too high.
2. Check the crankcase ventilation system for restrictions or malfunctioning components.
3. Check for a damaged O-ring seal bore-scratched, burred or nicked.
4. Look for a damaged or worn oil seal.
5. Check for improper component installation.
6. Look for cracks in the component.
7. Inspect the shaft surface for scratches, nicks, or damage.
8. Check for a loose or worn bearing which may lead to premature oil seal wear.

Crankcase Ventilation (CV) System Inspection

1. Test for vacuum at the vacuum hose where it connects to the crankcase ventilation housing. There should be manifold vacuum present at the hose. If there is no vacuum, inspect for a plugged hose, leaking hose or a plugged vent adapter.
2. Plug the end of the vacuum hose while the engine is running. Inspect the hose for any areas that collapse when the end of the hose is blocked. Replace the hose if it collapses when blocked.
3. If oil has accumulated in the intake air duct, inspect for the following conditions: Plugged vacuum orifice in the crankcase ventilation housing Plugged or restricted crankcase ventilation housing Excessive crankcase pressure or blow-by, refer to «Engine Compression Test»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-compression-test) .
4. Additional items to inspect: Plugged or leaking fresh air vent hose assembly or vent adapter Plugged or restricted passages in the throttle body Missing or damaged O-ring seals on the vent adapter Inspect the cam covers, the oil pan gasket, and other sealing areas for leaks

Results of Incorrect Operation

A plugged crankcase ventilation housing or hose may contribute to the following conditions

1. A rough idle
2. Stalling or a slow idle speed
3. Oil leaks
4. Oil accumulation in the intake air duct
5. Sludge in the engine

A leaking housing or hose may contribute to the following conditions

1. A rough idle
2. Stalling
3. Unstable idle speed

Diagnostic Aids

The symptom may be intermittent due to moisture on the drive belt or the pulleys. It may be necessary to spray a small amount of water on the drive belt in order to duplicate the customers concern. If spraying water on the drive belt duplicates the symptom, cleaning the belt pulleys may be the probable solution.

A loose or improper installation of a body component, a suspension component, or other items of the vehicle may cause the chirping noise.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2: The noise may not be engine related. This step is to verify that the engine is making the noise. If the engine is not making the noise do not proceed further with this table.
2. 3: The noise may be an internal engine noise. Removing the drive belt and operating the engine for a brief period will verify the noise is related to the drive belt. When removing the drive belt the water pump may not be operating and the engine may overheat. Also DTCs may set when the engine is operating with the drive belt removed.
3. 4: Inspect all drive belt pulleys for pilling. Pilling is the small balls or pills or it can be strings in the drive belt grooves from the accumulation of rubber dust.
4. 6: Misalignment of the pulleys may be caused from improper mounting of the accessory drive component, incorrect installation of the accessory drive component pulley, or the pulley bent inward or outward from a previous repair. Test for a misaligned pulley using a straight edge in the pulley grooves across two or three pulleys. If a misaligned pulley is found refer to that accessory drive component for the proper installation procedure for that pulley.
5. 10: Inspecting of the fasteners can eliminate the possibility that a wrong bolt, nut, spacer, or washer was installed.
6. 12: Inspecting the pulleys for being bent should include inspecting for a dent or other damage to the pulleys that would prevent the drive belt from not seating properly in all of the pulley grooves or on the smooth surface of a pulley when the back side of the belt is used to drive the pulley.
7. 14: Replacing the drive belt when it is not damaged or there is not excessive pilling will only be a temporary repair.

Drive Belt Chirping Diagnosis

A loose or improper installation of a body component, a suspension component, or other items of the vehicle may cause the squeal noise.

If the noise is intermittent, verify the accessory drive components by varying their loads making sure they are operated to their maximum capacity. An overcharged A/C system, power steering system with a pinched hose or wrong fluid, or a generator failing are suggested items to inspect.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: The noise may not be engine related. This step is to verify that the engine is making the noise. If the engine is not making the noise do not proceed further with this table.
2. 3: The noise may be an internal engine noise. Removing the drive belt and operating the engine for a brief period will verify the squeal noise is the drive belt or an accessory drive component. When removing the drive belt the water pump may not be operating and the engine may overheat. Also DTCs may set when the engine is operating with the drive belt removed.
3. 4: This test is to verify that an accessory drive component does not have a seized bearing. With the belt remove test the bearings in the accessory drive components for turning smoothly. Also test the accessory drive components with the engine operating by varying the load on the components to verify that the components operate properly.
4. 5: This test is to verify that the drive belt tensioner operates properly. If the drive belt tensioner is not operating properly, proper belt tension may not be achieved to keep the drive belt from slipping which could cause a squeal noise.
5. 6: This test is to verify that the drive belt is not too long, which would prevent the drive belt tensioner from working properly. Also if an incorrect length drive belt was installed, it may not be routed properly and may be turning an accessory drive component in the wrong direction.
6. 7: Misalignment of the pulleys may be caused from improper mounting of the accessory drive component, incorrect installation of the accessory drive component pulley, or the pulley bent inward or outward from a previous repair. Test for a misaligned pulley using a straight edge in the pulley grooves across two or three pulleys. If a misaligned pulley is found refer to that accessory drive component for the proper installation procedure for that pulley.
7. 8: This test is to verify that the pulleys are the correct diameter or width. Using a known good vehicle compare the pulley sizes.

Drive Belt Squeal Diagnosis

The drive belt will not cause the whine noise.

If the whine noise is intermittent, verify the accessory drive components by varying their loads making sure they are operated to their maximum capacity. Such items but not limited to may be an A/C system overcharged, the power steering system restricted or the wrong fluid, or the generator failing.

The numbers below refer to the step numbers on the diagnostic table.

1. 3: This test is to verify that the noise is being caused by the drive belt or the accessory drive components. When removing the drive belt the water pump may not be operating and the engine may overheat. Also DTCs may set when the engine is operating with the drive belt removed.
2. 4: The inspection should include checking the drive belt tensioner and the drive belt idler pulley bearings. The drive belt may have to be installed and the accessory drive components operated separately by varying their loads. Refer to the suspected accessory drive component for the proper inspection and replacement procedure.

Drive Belt Whine Diagnosis

Vibration from the engine operating may cause a body component or another part of the vehicle to make rumbling noise.

The drive belt may have a condition that can not be seen or felt. Sometimes replacing the drive belt may be the only repair for the symptom.

If replacing the drive belt, completing the diagnostic table, and the noise is only heard when the drive belt(s) are installed, there might be an accessory drive component with a failure. Varying the load on the different accessory drive components may aid in identifying which component is causing the rumbling noise.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This test is to verify that the symptom is present during diagnosing. Other vehicle components may cause a similar symptom.
2. 3: This test is to verify that the drive belt is causing the rumbling noise. Rumbling noise may be confused with an internal engine noise due to the similarity in the description. Remove only one drive belt at a time if the vehicle has multiple drive belts. When removing the drive belt the water pump may not be operating and the engine may overheat. Also DTCs may set when the engine is operating with the drive belt removed.
3. 4: Inspecting the drive belt is to ensure that it is not causing a the noise. Small cracks across the ribs of the drive belt will not cause the noise. Belt separation is identified by the plys of the belt separating and may be seen at the edge of the belt our felt as a lump in the belt.
4. 5: Small amounts of pilling is normal condition and acceptable. When the pilling is severe the drive belt does not have a smooth surface for proper operation.

Drive Belt Rumbling Diagnosis

The accessory drive components can have an affect on engine vibration. Such as but not limited to the A/C system over charged, the power steering system restricted or the incorrect fluid, or an extra load on the generator. To help identify an intermittent or an improper condition, vary the loads on the accessory drive components.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This test is to verify that the symptom is present during diagnosing. Other vehicle components may cause a similar symptom such as the exhaust system, or the drivetrain.
2. 3: This test is to verify that the drive belt(s) or accessory drive components may be causing the vibration. When removing the drive belt the water pump may not be operating and the engine may overheat. Also DTCs may set when the engine is operating with the drive belt removed.
3. 4: The drive belt may cause a vibration. While the drive belt is removed this is the best time to inspect the condition of the belt.
4. 6: Inspecting of the fasteners can eliminate the possibility that a wrong bolt, nut, spacer, or washer was installed.
5. 8: This step should only be performed if the water pump is driven by the drive belt. Inspect the water pump shaft for being bent. Also inspect the water pump bearings for smooth operation and excessive play. Compare the water pump with a known good water pump.
6. 9: Accessory drive component brackets that are bent, cracked, or loose may put extra strain on that accessory component causing it to vibrate.

Drive Belt Vibration Diagnosis

If the drive belt repeatedly falls off the drive belt pulleys, this is because of pulley misalignment.

An extra load that is quickly applied on released by an accessory drive component may cause the drive belt to fall off the pulleys. Verify the accessory drive components operate properly.

If the drive belt is the incorrect length, the drive belt tensioner may not keep the proper tension on the drive belt.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This inspection is to verify the condition of the drive belt. Damage may of occurred to the drive belt when the drive belt fell off. The drive belt may of been damaged, which caused the drive belt to fall off. Inspect the belt for cuts, tears, sections of ribs missing, or damaged belt plys.
2. 4: Misalignment of the pulleys may be caused from improper mounting of the accessory drive component, incorrect installation of the accessory drive component pulley, or the pulley bent inward or outward from a previous repair. Test for a misaligned pulley using a straight edge in the pulley grooves across two or three pulleys. If a misaligned pulley is found refer to that accessory drive component for the proper installation procedure of that pulley.
3. 5: Inspecting the pulleys for being bent should include inspecting for a dent or other damage to the pulleys that would prevent the drive belt from not seating properly in all of the pulley grooves or on the smooth surface of a pulley when the back side of the belt is used to drive the pulley.
4. 6: Accessory drive component brackets that are bent or cracked will let the drive belt fall off.
5. 7: Inspecting of the fasteners can eliminate the possibility that a wrong bolt, nut, spacer, or washer was installed. Missing. loose, or the wrong fasteners may cause pulley misalignment from the bracket moving under load. Over tightening of the fasteners may cause misalignment of the accessory component bracket.

Drive Belt Falls Off Diagnosis

Excessive wear on a drive belt is usually caused by an incorrect installation or the wrong drive belt for the application.

Minor misalignment of the drive belt pulleys will not cause excessive wear, but will probably cause the drive belt to make a noise or to fall off.

Excessive misalignment of the drive belt pulleys will cause excessive wear but may also make the drive belt fall off.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: The inspection is to verify the drive belt is correctly installed on all of the drive belt pulleys. Wear on the drive belt may be caused by mis-positioning the drive belt by one groove on a pulley.
2. 3: The installation of a drive belt that is two wide or two narrow will cause wear on the drive belt. The drive belt ribs should match all of the grooves on all of the pulleys.
3. 4: This inspection is to verify the drive belt is not contacting any parts of the engine or body while the engine is operating. There should be sufficient clearance when the drive belt accessory drive components load varies. The drive belt should not come in contact with an engine or a body component when snapping the throttle.

Drive Belt Excessive Wear Diagnosis

Drive Belt Tensioner Diagnosis

Drive Belt Tensioner Diagnosis

Timing Belt Inspection

Timing Belt Inspection

Scheme 7

1. Rotate the drive belt tensioner clockwise to release drive belt tension.
2. Slide the drive belt from the water pump pulley.
3. Allow the drive belt tensioner to return to the relaxed position.
4. Remove the drive belt from the accessory drive pulleys.

Scheme 8

1. Using the drive belt routing diagram route the drive belt to the accessory drive pulleys, excluding the water pump pulley.
2. Rotate the drive belt tensioner clockwise.
3. Route the drive belt over the top of the water pump. IMPORTANT: Ensure the drive belt is properly aligned and seated into the grooves of the accessory drive pulleys.
4. Release the drive belt tensioner and inspect the drive belt for proper seating in the accessory drive pulleys.

Scheme 9

1. Remove the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Loosen the drive belt tensioner bolts.
3. Remove the upper drive belt tensioner bolt.
4. Remove the drive belt tensioner and lower bolt from the engine.

Installation Procedure

1. Position the drive belt tensioner and lower bolt to the engine as an assembly. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the upper drive belt tensioner bolt. Tighten: Tighten the drive belt tensioner bolts to 35 N.m (26 lb ft).
3. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

1. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
2. Remove the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
3. Disconnect the retainer (1) securing the engine wiring harness to the A/C pressure hose.
4. Disconnect the retainer (2) securing the engine wiring harness to the accessory mounting bracket (3).
5. Remove the power steering return hose nut and retainer from the Air Conditioning (A/C) compressor stud.
6. Remove the power steering pressure hose nut and retainer from the A/C compressor stud.
7. Remove the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
8. Remove the power steering pump mounting bolts (1-3) ONLY.
9. Remove the power steering pump from the accessory mounting bracket, and position aside.
10. Disconnect the following from the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
11. Remove the remote power steering fluid reservoir mounting bolts (1, 3) ONLY, and position aside.
12. Disconnect the electrical connector from the A/C compressor. IMPORTANT: Evacuation of the A/C refrigerant will not be necessary.
13. Remove the A/C compressor mounting bolts ONLY, and position aside.
14. Remove the 4 bolts (1-4) securing the accessory mounting bracket to the engine.
15. Remove the accessory mounting bracket from the engine.

1. Position the accessory mounting bracket to the engine. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the 4 bolts securing the accessory mounting bracket to the engine. Tighten: Tighten the accessory mounting bracket bolts in sequence 1-4 to 35 N.m (26 lb ft).
3. Position the A/C compressor to the accessory mounting bracket.
4. Install the A/C compressor mounting bolts. Tighten: Tighten the A/C compressor mounting bolts to 20 N.m (15 lb ft).
5. Connect the electrical connector to the A/C compressor.
6. Install the remote power steering fluid reservoir mounting bolts (1, 3). Tighten Tighten the remote power steering fluid reservoir to intake plenum mounting bolts (1) to 9 N.m (80 lb in). Tighten the remote power steering fluid reservoir to cylinder head mounting bolt (3) to 25 N.m (18 lb ft).
7. Connect the following to the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
8. Position the power steering pump to the accessory mounting bracket.
9. Install the power steering pump mounting bolts. Tighten: Tighten the power steering pump mounting bolts in sequence 1-3 to 35 N.m (26 lb ft).
10. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
11. Install the power steering pressure hose retainer and nut to the A/C compressor stud. Tighten: Tighten the power steering hose retaining nut to 8 N.m (71 lb in).
12. Install the power steering return hose retainer and nut to the A/C compressor stud. Tighten: Tighten the power steering hose retaining nut to 8 N.m (71 lb in).
13. Connect the retainer (1) securing the engine wiring harness to the A/C pressure hose.
14. Connect the retainer (2) securing the engine wiring harness to the accessory mounting bracket (3).
15. Install the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
16. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.

Engine Support Fixture

Tools Required

1. J 28467-B Universal Engine Support Fixture. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 28467-501 Engine Support Fixture Adapters. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Scheme 18

Scheme 19

Scheme 20

Scheme 21

Scheme 22

Scheme 23

Scheme 24

Scheme 25

Scheme 26

1. Loosely install the J 28467-501 (1) to the ends of the strut tower tube J 28467-3 (2).
2. Place the strut tower tube J 28467-3 and the J 28467-501 on top of both the left and right fender lips, over the engine rear lift bracket.
3. Install the radiator shelf tube J 28467-2A (2) on top of the strut tower tube J 28467-3 (1) over the engine front lift bracket.
4. Install the round tube of the front support assembly J 28467-4A through the large hole in the radiator shelf tube J 28467-2A. The hole used in the radiator shelf tube J 28467-2A depends on the vehicle application.
5. Place the rubber padded foot of the front support assembly J 28467-4A on the upper tie bar.
6. Install the 7/16 in x 2.0 in quick release pin J 28467-9 through the hole in the front support assembly J 28467-4A in order to level the radiator shelf tube J 28467-2A.
7. Install the cross bracket assembly J 28467-1A .
8. Hand tighten the cross bracket assembly J 28467-1A wing nuts.
9. Install the lift hook J 28467-7A through the lift hook bracket J 28467-6A .
10. Install the 1/2 in lift hook washer and lift hook wing nut J 28467-34 onto the lift hook J 28467-7A .
11. Install the assembled lift hook bracket J 28467-6A (1) over the strut tower tube J 28467-3 (2).
12. Adjust the assembled lift hook bracket J 28467-6A (1) in order to align the hook with the engine rear lift bracket.
13. Install the lift hook J 28467-7A through the engine rear lift bracket. Ensure the hook does not damage the surrounding components.
14. Repeat steps 9 and 10.
15. Install the assembled lift hook bracket J 28467-6A (1) over the radiator shelf tube J 28467-2A (2).
16. Adjust the assembled lift hook bracket J 28467-6A (1) in order to align the hook with the engine front lift bracket.
17. Install the lift hook J 28467-7A through the engine front lift bracket. Ensure the hook does not damage the surrounding components.
18. Hand tighten the lift hook wing nuts J 28467-34 securely to remove all slack from the engine support fixture assembly.

Removal Procedure

1. Remove the J 28467-B .
2. Remove the J 28467-501 .

Engine Mount Inspection

1. Install the engine support fixture. Refer to «Engine Support Fixture»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-support-fixture) . Raising the engine removes the weight from the engine mount and creates slight tension in the rubber.
2. Observe the engine mount while raising the engine. Replace the engine mount if the engine mount exhibits any of the following conditions: The hard rubber surface is covered with heat check cracks. The rubber is separated from the metal plate of the engine mount. The rubber is split through the center of the engine mount. The GLYCOL™ fluid is leaking from the engine mount.
3. If there is movement between the metal plate of the engine mount and its attaching points, lower the engine on the engine mount. Tighten the bolts or nuts attaching the engine mount to the frame or engine mount bracket. Refer to «Engine Mount Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) or «Engine Mount Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Scheme 27

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the left engine mount bracket. Refer to «Engine Mount Bracket Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the lower engine mount retaining nut.
4. Remove the engine mount from the vehicle.

1. Install the engine mount to the vehicle. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the engine mount lower retaining nuts. Tighten: Tighten the nut to 80 N.m (59 lb ft).
3. Install the left engine mount bracket. Refer to «Engine Mount Bracket Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the right engine mount bracket. Refer to «Engine Mount Bracket Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the engine mount retaining nut.
4. Remove the engine mount from the vehicle.

1. Install the engine mount to the vehicle. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the engine mount retaining nut. Tighten: Tighten the nut to 80 N.m (59 lb ft).
3. Install the right engine mount bracket. Refer to «Engine Mount Bracket Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Lower the vehicle.

Scheme 28

Scheme 29

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the left catalytic converter. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3)
3. Install a screw jack with a block of wood under the oil pan for support.
4. Remove the upper engine mount retaining nut. IMPORTANT: Ensure not to distort or bend the engine mount heat shield.
5. Remove the left engine mount bracket retaining bolts.
6. Remove the left engine mount bracket.

1. Install the left engine mount brackets. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the left engine mount bracket retaining bolts. Tighten: Tighten the bolts to 60 N.m (44 lb ft).
3. Install the upper engine mount retaining nut. Tighten: Tighten the nut to 80 N.m (59 lb ft).
4. Remove the screw jack.
5. Install the left catalytic converter. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) in Engine Exhaust.
6. Lower the vehicle.

Scheme 30

Scheme 31

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Remove the right catalytic converter. Refer to «Catalytic Converter Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-right-la3) in Engine Exhaust.
3. Remove the starter. Refer to «Starter Motor Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
4. Install a screw jack with a block of wood under the oil pan for support.
5. Remove the right engine mount upper retaining nut. IMPORTANT: Ensure not to distort or bend the engine mount heat shield.
6. Remove the right engine mount bracket mounting bolts.
7. Remove the engine mount bracket from the vehicle.

1. Install the engine mount bracket to the vehicle. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the engine mount bracket mounting bolts. Tighten: Tighten the bolts to 60 N.m (44 lb ft).
3. Remove the screw jack.
4. Install the upper engine mount retaining nut. Tighten: Tighten the nut to 80 N.m (59 lb ft).
5. Install the starter. Refer to «Starter Motor Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
6. Install the right catalytic converter. Refer to «Catalytic Converter Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-right-la3) in Engine Exhaust.
7. Lower the vehicle.

Scheme 32

Scheme 33

Scheme 34

1. Remove the oil filler spout by unlocking the tab and twisting counterclockwise.
2. Disconnect the following from the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
3. Disconnect the vacuum brake booster hose from the vacuum source.
4. Remove the remote power steering fluid reservoir mounting bolts (1, 3) ONLY.
5. Position the reservoir forward away from the cam cover.
6. Disconnect the following from the front of the throttle body heater inlet hose/pipe bracket: The camshaft position (CMP) sensor connector The left knock sensor connector (1) The vacuum hoses
7. Remove the left cover (1) from the cam cover (3).

1. Fully seat the left cover (1) over the following: The cam cover (3) The throttle body heater inlet hose/pipe (2)
2. Install the remote power steering fluid reservoir mounting bolts (1, 3). Tighten: Tighten the remote power steering fluid reservoir to intake plenum mounting bolts (1) to 9 N.m (80 lb in). Tighten the remote power steering fluid reservoir to cylinder head mounting bolt (3) to 25 N.m (18 lb ft).
3. Install the oil filler spout under the cover by twisting clockwise and snapping in place.
4. Connect the following to the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
5. Connect the following to the front of the throttle body heater inlet hose/pipe bracket: The camshaft position (CMP) sensor connector The left knock sensor connector (1) The vacuum hoses
6. Connect the vacuum brake booster hose to the vacuum source.

Scheme 35

Scheme 36

Scheme 37

Scheme 38

Scheme 39

1. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief Procedure»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__fuel-pressure-relief-procedure) .
2. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) in order to disconnect the following quick connect fittings from the fuel rail. The return hose/pipe (1) The feed hose/pipe (2) Plug the open outlets to prevent fluid loss and contamination.
3. Disconnect the evaporative emission (EVAP) quick connect fitting (3). Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
4. Open the retainer (4) located at the engine control module (ECM) bracket in order to remove the chassis hose/pipes.
5. Disconnect the 2 cable harness clips (1) securing the engine wiring harness (4) to the ECM bracket (2).
6. Remove the 2 bolts (3) securing the afterboil coolant pump to the ECM bracket, and position aside. NOTE: Always turn the ignition off when installing or removing the ECM connectors in order to prevent damage to the components. IMPORTANT: Ensure the ignition is in the OFF position.
7. Remove the screw (2) securing the ECM ground wire (1) to the ECM (3). NOTE: In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins.
8. Flip the release levers to the open position (3) and disconnect the ECM connectors (2) from the ECM (5).
9. Remove the bolt securing the coolant inlet pipe to the ECM bracket.
10. Remove the ECM bracket bolts from the following: The intake plenum The cylinder head
11. Remove the ECM bracket from the engine with the ECM still attached, and position aside.
12. Remove the right cover (1) from the cam cover (6).

Scheme 40

1. Fully seat the right cover (1) to the cam cover (6), aligning the following: Insert the cover (1) between the engine wiring harness (5) and the cam cover (6). The front notch (2) of the cover (1) with the right knock sensor bracket (4). Position the cover (1) forward against the engine rear timing belt cover (3). Locate the cover (1) between the intake manifold and the cam cover bolt heads.
2. Position the ECM and bracket to the engine.
3. Install the ECM bracket bolts to the following: The cylinder head The intake plenum NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
4. Tighten the ECM bracket bolts in the sequence shown. Tighten: Tighten the ECM bracket to cylinder head bolt to 20 N.m (15 lb ft). Tighten the ECM bracket to intake plenum bolts to 8 N.m (71 lb in).
5. Install the bolt securing the coolant inlet pipe to the ECM bracket. Tighten: Tighten the coolant inlet pipe support bolt to 20 N.m (15 lb ft).
6. Carefully align the harness connectors (2) with the ECM connectors.
7. Guide the connectors (2) into place while moving the release levers to the locked position (1).
8. Install the screw (2) securing the ECM ground wire (1) to the ECM (3). Tighten: Tighten the ECM ground wire screw to 4.5 N.m (40 lb in).
9. Install the 2 bolts (3) securing the afterboil coolant pump to the ECM bracket. Tighten: Tighten the afterboil coolant pump bolts to 10 N.m (89 lb in).
10. Connect the 2 cable harness clips (1) securing the engine wiring harness (4) to the ECM bracket (2).
11. Insert the chassis hose/pipes into the retainer (4) located at the ECM bracket.
12. Close the retainer (4).
13. Connect the EVAP quick connect fitting (3). Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
14. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) in order to connect the following quick connect fittings to the fuel rail. The feed hose/pipe (2) The return hose/pipe (1)

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

1. Loosen the fuel filler cap in order to relieve the system pressure.
2. Disconnect the electrical connector (2) from the coil pack (1).
3. Disconnect the EVAP quick connect fitting. Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
4. Remove the heated oxygen sensor connector (1) from the bracket (3).
5. Disconnect the crankcase ventilation dirty air hose retainer (2) from the fuel pipe.
6. Remove the bolt (6) securing the following to the crankcase vent housing (4): The heated oxygen sensor connector bracket (5) The EVAP canister purge valve bracket (1)
7. Position the EVAP canister purge valve assembly rearward, away from the engine.
8. Remove the rear cover (1) from the engine.

1. Slide the rear cover (1) into position, aligning the following: The notch at the bottom of the cover (1) with the water crossover pipe plug (2). The notch at the bottom of the cover (1) with the water crossover fitting (3). The alignment hole (5) in the cover (1) with the fuel pressure regulator clamp bolt (4). NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the bolt (6) securing the following to the crankcase vent housing (4): The heated oxygen sensor connector bracket (5) The EVAP canister purge valve bracket (1) Tighten: Tighten the EVAP canister purge valve bracket bolt to 8 N.m (71 lb in).
3. Connect the crankcase ventilation dirty air hose retainer (2) to the fuel pipe.
4. Install the heated oxygen sensor connector (1) to the bracket (3).
5. Connect the EVAP quick connect fitting. Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
6. Connect the electrical connector (2) to the coil pack (1).
7. Tighten the fuel filler cap.

Scheme 46

1. Disconnect the following from the engine vent adapter (3): The crankcase ventilation fresh air hoses (1) The crankcase ventilation dirty air hose (2)
2. Disconnect the crankcase ventilation dirty air hose retainer (2) from the fuel pipe.
3. Disconnect the following from the crankcase vent housing (4): The crankcase ventilation fresh air hose (2) The crankcase ventilation dirty air hose (3)

1. Connect the following to the crankcase vent housing (4): The crankcase ventilation fresh air hose (2) The crankcase ventilation dirty air hose (3)
2. Connect the crankcase ventilation dirty air hose retainer (2) to the fuel pipe.
3. Connect the following to the engine vent adapter (3): The crankcase ventilation fresh air hoses (1) The crankcase ventilation dirty air hose (2)

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Scheme 52

Scheme 53

1. Remove the intake plenum air inlet hose clamps and hoses from the throttle body.
2. Disconnect the fuel pressure regulator atmospheric vent tube from the bottom of the throttle body.
3. Remove the bolts securing the throttle body to the intake plenum.
4. Remove the throttle body from the intake plenum and crankcase vent adapter, allowing it to be supported by the throttle body inlet heater hose.
5. Remove the throttle body O-ring seals.
6. Remove the 3 bolts securing the crankcase vent adapter to the intake plenum.
7. Lift the crankcase vent adapter from the intake plenum, and position aside.
8. Disconnect the vacuum brake booster hose retainer (1) from the rear of the intake plenum-RHD only.
9. Disconnect the crankcase ventilation dirty air hose retainer (2) from the fuel pipe.
10. Remove the remote power steering fluid reservoir mounting bolts (1, 3) ONLY, and position aside.
11. Disconnect the electrical connector (1) and vacuum hose (2) from the switchover valve at the rear of the plenum.
12. Remove the bolt (1) securing the throttle body heater inlet hose/pipe to the intake plenum (2).
13. Disconnect the vacuum brake booster hose (3) from the vacuum source.
14. Remove the 2 bolts securing the engine control module (ECM) bracket to the intake plenum.
15. Remove the intake plenum bolt caps.
16. Remove the intake plenum bolts.
17. Lift the intake plenum from the intake manifold.
18. Remove the intake plenum O-ring seals.
19. Mask off the open ports to the intake manifold, in order to prevent foreign objects from entering the engine.
20. Disassemble the intake plenum if necessary. Refer to «Intake Plenum Manifold Disassemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__intake-plenum-manifold-disassemble) .
21. Clean and inspect the intake plenum. Refer to «Intake Plenum Manifold Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__intake-plenum-manifold-cleaning-and-inspection) .

1. Assemble the intake plenum if necessary. Refer to «Intake Plenum Manifold Assemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__intake-plenum-manifold-assemble) .
2. Remove the masking from the intake plenum ports and ensure the sealing surfaces are clean and dry.
3. Lightly coat the intake plenum O-ring seals with clean engine oil and install to the intake manifold.
4. Position the intake plenum to the intake manifold, aligning the pins. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
5. Install the intake plenum bolts. Tighten: Tighten the intake plenum bolts to 20 N.m (15 lb ft).
6. Install the intake plenum bolt caps.
7. Install the 2 bolts securing the ECM bracket to the intake plenum. Tighten: Tighten the ECM bracket bolts to 8 N.m (71 lb in) in sequence 2-3.
8. Connect the vacuum brake booster hose (3) to the vacuum source.
9. Install the bolt (1) securing the throttle body heater inlet hose/pipe to the intake plenum (2). Tighten: Tighten the throttle body heater inlet hose/pipe bolt to 9 N.m(80 lb in).
10. Connect the electrical connector (1) and vacuum hose (2) to the switchover valve at the rear of the plenum.
11. Position the remote power steering fluid reservoir (2) to the engine.
12. Install the remote power steering fluid reservoir mounting bolts (1, 3). Tighten Tighten the remote power steering fluid reservoir mounting bolts (1) to intake plenum to 9 N.m (80 lb in). Tighten the remote power steering fluid reservoir mounting bolt (3) to cylinder head to 25 N.m (18 lb ft).
13. Connect the vacuum brake booster hose retainer (1) to the rear of the intake plenum-RHD only.
14. Connect the crankcase ventilation dirty air hose retainer (2) to the fuel pipe.
15. Apply clean engine oil to the crankcase vent adapter seal.
16. Position the crankcase vent adapter to the intake plenum.
17. Install the 3 bolts securing the crankcase vent adapter to the intake plenum. Tighten: Tighten the crankcase vent tube adapter bolts to 8 N.m (71 lb in).
18. Inspect the following O-ring seals and replace if necessary: The throttle body The crankcase vent tubes
19. Lightly lubricate the O-ring seals with clean engine oil.
20. Position the throttle body to the intake plenum and crankcase vent adapter.
21. Install the bolts securing the throttle body to the intake plenum. Tighten: Tighten the throttle body bolts to 8 N.m (71 lb in).
22. Connect the fuel pressure regulator atmospheric vent tube to the bottom of the throttle body.
23. Install the intake plenum air inlet hose clamps and hoses to the throttle body.

1. Remove the intake plenum. Refer to «Intake Plenum Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief Procedure»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__fuel-pressure-relief-procedure) in Engine Controls-2.6L and 3.2L.
3. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) in order to disconnect the following quick connect fittings from the fuel rail: The return hose/pipe (1) The feed hose/pipe (2) Plug the open outlet ports to prevent fuel loss and contamination.
4. Disconnect the fuel injector electrical harness connector (2) from the engine wiring harness connector (3).
5. Disconnect the fuel pressure regulator vent tube from the fuel pressure regulator.
6. Remove the fuel rail if intake manifold replacement is necessary. Refer to «Fuel Injectors and Fuel Rail Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
7. Remove the intake manifold bolts (1).
8. Remove the intake manifold (2) from the intake manifold flange.
9. Remove the seals (3).
10. Mask off the open ports to the intake manifold flange, in order to prevent foreign objects from entering the engine.
11. If necessary, disassemble the intake manifold. Refer to «Intake Manifold Disassemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__intake-manifold-disassemble) .
12. Clean and inspect the intake manifold. Refer to «Intake Manifold Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__intake-manifold-cleaning-and-inspection) .

1. If necessary, assemble the intake manifold. Refer to «Intake Manifold Assemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__intake-manifold-assemble) .
2. Remove the masking from the intake manifold flange and ensure the sealing surfaces are clean and dry.
3. Install the seals (3) into the intake manifold flange grooves.
4. Position the intake manifold (2) to the intake manifold flange.
5. Install the intake manifold bolts (1). Tighten: Tighten the intake manifold bolts to 20 N.m (15 lb ft).
6. Install the fuel rail if previously removed. Refer to «Fuel Injectors and Fuel Rail Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
7. Connect the fuel pressure regulator vent tube to the fuel pressure regulator.
8. Connect the fuel injector electrical harness connector (2) to the engine wiring harness connector (3).
9. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) in order to connect the following quick connect fittings to the fuel rail: The feed hose/pipe (2) The return hose/pipe (1)
10. Install the intake plenum. Refer to «Intake Plenum Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the intake manifold flange bolts (1).
3. Remove the intake manifold flange (2) from the cylinder heads.
4. Mask off the ports to the cylinder heads, in order to prevent foreign objects from entering the engine.

1. Remove the masking from the cylinder head intake ports and ensure the sealing surfaces are clean and dry.
2. Position the intake manifold flange (2) to the cylinder heads.
3. Apply thread adhesive GM P/N 12345382, (Canadian P/N 10953489) to the intake manifold flange bolts.
4. Install the intake manifold flange bolts. Tighten: Tighten the intake manifold flange bolts in sequence to 20 N.m (15 lb ft).
5. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
2. Remove the intake plenum. Refer to «Intake Plenum Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the drive belt tensioner. Refer to «Drive Belt Tensioner Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Remove the water pump pulley bolts.
5. Remove the water pump pulley from the water pump.
6. Remove the power steering pump mounting bolts ONLY.
7. Remove the power steering pump from the accessory mounting bracket, and position aside.
8. Remove the timing belt cover bolts.
9. Remove the timing belt cover from the engine.
10. Clean and inspect the timing belt cover. Refer to «Timing Belt Cover Cleaning and Inspection - Front»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-cover-cleaning-and-inspection) .
11. Inspect the timing belt for serviceability. Refer to «Timing Belt Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-inspection) .

1. Position the timing belt cover to the engine.
2. Install the timing belt cover bolts. Tighten: Tighten the timing belt cover bolts to 8 N.m (71 lb in).
3. Position the power steering pump to the accessory mounting bracket.
4. Install the power steering pump mounting bolts. Tighten: Tighten the power steering pump mounting bolts in sequence to 35 N.m (26 lb ft).
5. Position the water pump pulley to the water pump.
6. Install the water pump pulley bolts. Tighten: Tighten the water pump pulley bolts to 8 N.m (71 lb in).
7. Install the drive belt tensioner. Refer to «Drive Belt Tensioner Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
8. Install the intake plenum. Refer to «Intake Plenum Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
9. Install the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.

1. Remove the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
2. Remove the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the crankshaft balancer bolts.
4. Remove the crankshaft balancer from the crankshaft sprocket.

1. Install the crankshaft balancer to the crankshaft sprocket.
2. Install the crankshaft balancer bolts. Tighten: Tighten the crankshaft balancer bolts to 20 N.m (15 lb ft).
3. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Remove the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.

Timing Belt Replacement

Tools Required

1. J 42069 Timing Belt Alignment Kit. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Visually inspect the timing belt for cracks and wear. If cracks or wear are present, do not reuse the belt.
2. Remove the timing belt cover. Refer to «Timing Belt Cover Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the #1 cylinder is at Top Dead Center (TDC) on the compression stroke. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The reference marks on the camshaft gears should be aligned with the corresponding notches on the rear timing belt cover, as well as the mark on the crankshaft sprocket and oil pump housing.
5. Rotate the crankshaft counter clockwise using the J 42098 until 60 degrees Before Top Dead Center (BTDC). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The 60 degrees BTDC point can be identified by the index mark on the oil pump cover.
6. Install the J 42069-10 to the crankshaft sprocket with the knurled bolt.
7. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The #1 cylinder is at TDC at this point.
8. Secure the moveable lever of the tool to the water pump pulley flange. IMPORTANT: Ensure that the crankshaft is not 180 degrees off TDC. The reference marks on the camshaft gears should be aligned with the corresponding notches on the rear timing belt cover at this point. If they are not aligned, the engine is 180 degrees off.
9. Install the J 42069-1 and the J 42069-2 to the camshaft gears. If the J 42069-1 or the J 42069-2 do not fit into the teeth of the camshaft gears, it may be necessary to loosen the upper idler pulley and turn the eccentric or camshaft gears until the tool can be inserted.
10. Loosen the timing belt tensioner nut.
11. Loosen the upper idler pulley bolt.
12. Remove the lower idler pulley bolt.
13. Remove the lower idler pulley and spacer.
14. Remove the J 42069-10 from the crankshaft sprocket.
15. Remove the timing belt.

Installation and Initial Adjustment Procedure

Note. When installing a new or used timing belt, the directional arrows on the timing belt must be matched with the rotation of the crankshaft. If this precaution is not observed, excessive wear and timing belt failure may occur.

1. Inspect the timing belt. Refer to «Timing Belt Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-inspection) .
2. Start at the crankshaft sprocket by aligning the double dash TDC mark on the timing belt with the marks on the oil pump housing and on the crankshaft sprocket.
3. Wedge the J 42069-30 between the oil pump housing and timing belt in order to prevent the belt teeth from jumping the crankshaft sprocket teeth.
4. Route the timing belt through the timing belt tensioner (2).
5. Slip the timing belt through camshaft gears 1 and 2 simultaneously (3), ensuring the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
6. Route the timing belt through the upper idler pulley (4).
7. Slip the timing belt through camshaft gears 3 and 4 simultaneously (6), ensuring the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
8. Using the J 42098 rotate the crankshaft counter clockwise to 3 degrees BTDC, allowing the timing belt to slide on the J 42069-30. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
9. Install the lower idler pulley and spacer with the timing belt.
10. Install the lower idler pulley bolt. Tighten: Tighten the lower idler pulley bolt to 40 N.m (30 lb ft).
11. Turn the crankshaft back to TDC, using the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
12. Apply tension to the timing belt, at the upper idler pulley by turning the high point of the eccentric to approximately the 9 o'clock position. Tighten the idler pulley locking bolt, while holding the eccentric with the J 42069-40, until snug. The idler pulley bolt will be tightened to specifications after all final adjustments are made.
13. Set the initial timing belt tension: Rotate the tensioner eccentric counter clockwise to full stop, turn the eccentric back until the reference mark is 1 mm (0.03 in) over the flange. Tighten the timing belt tensioner locking nut until snug. The locking nut will be tightened to specifications after all final adjustments are made.
14. Inspect the alignment marks on the timing belt to ensure that they are aligned with the appropriate reference points on the camshaft gears, the rear timing belt cover and on the oil pump housing.
15. Remove the J 42069-30, the J 42069-1 and the J 42069-2 locking tools from the engine.
16. Rotate the crankshaft clockwise 2 revolutions using the J 42098 until the #1 cylinder is 60 degrees BTDC. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
17. Install the J 42069-10 to the crankshaft sprocket with the knurled bolt.
18. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
19. Secure the moveable lever of the tool to the water pump pulley flange.
20. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover, as well as the mark on the crankshaft sprocket and oil pump housing.
21. Use the J 42069-20 to inspect the alignment of the camshaft gears 3 and 4.
22. Use the J 42069-20 to inspect the alignment of the camshaft gears 1 and 2.
23. If timing belt adjustment IS REQUIRED, refer to «Timing Belt Timing Procedure»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-timing-procedure) .
24. If timing belt adjustment IS NOT REQUIRED, set the final timing belt tension: Loosen the timing belt eccentric locking nut. Turn the eccentric counter clockwise to full stop, then back to the following specification: NEW BELT Until the reference mark is 3-4 mm (0.118-0.157 in) (a) above the datum line. USED BELT Until the reference mark is aligned with the datum line. Tighten: Tighten the timing belt tensioner eccentric locking nut to 20 N.m (15 lb ft).
25. Hold the upper idler pulley eccentric in place with the J 42069-40. Tighten: Tighten the upper idler pulley bolt to 40 N.m (30 lb ft).
26. Remove the J 42069-20 from the camshaft gears.
27. Remove the J 42069-10 from the engine.
28. For final inspection rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J 42098 until reaching 60 degrees BTDC. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
29. Install the J 42069-10 to the crankshaft sprocket.
30. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
31. Secure the moveable lever of the tool to the water pump pulley flange.
32. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover, as well as the mark on the crankshaft sprocket and oil pump housing.
33. Use the J 42069-20 to inspect the alignment of the camshaft gears 3 and 4.
34. Use the J 42069-20 to inspect the alignment of the camshaft gears 1 and 2.
35. If the reference marks on the camshaft gears do not match exactly, timing belt adjustment IS REQUIRED. Refer to «Timing Belt Timing Procedure»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-timing-procedure) .
36. If the reference marks match exactly, further timing belt adjustment IS NOT necessary. Continue with reassembly of the engine.
37. Remove the J 42069-10 and the J 42069-20.
38. Install the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
39. Install the timing belt cover. Refer to «Timing Belt Cover Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Timing Belt Timing Procedure

Tools Required

1. J 42069 Timing Belt Alignment Kit. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Timing Belt Adjustment Checking

1. Apply the J 42069-20 to camshaft gears 1 and 2.
2. Inspect the relationship of the marks on the camshaft gears to the marks on the J 42069-20. They must match exactly, if not, timing belt adjustment is required.
3. Continue to the next applicable procedure

Marks on Camshaft Gears 1 and 2 Align to the LEFT of J 42069-20

1. Loosen the upper idler pulley bolt.
2. Use the J 42069-40 to turn the eccentric on the upper idler pulley COUNTERCLOCKWISE until the marks on the camshaft gears and on the J 42069-20 are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position. Tighten: Tighten the upper idler pulley bolt, while holding the eccentric in place with the J 42069-40 to prevent movement, to 40 N.m (30 lb ft).
3. Remove the J 42069-10 and the J 42069-20.
4. Rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J 42098 until reaching 60 degrees Before Top Dead Center (BTDC). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The 60 degrees BTDC point can be identified by the index mark on the oil pump cover.
5. Install the J 42069-10 to the crankshaft sprocket with the knurled bolt.
6. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The #1 cylinder is at Top Dead Center (TDC) at this point.
7. Secure the moveable lever of the tool to the water pump pulley flange. IMPORTANT: Ensure that the crankshaft is not 180 degrees off TDC. The reference marks on the camshaft gears should be aligned with the corresponding notches on the rear timing belt cover at this point. If they are not aligned, the engine is 180 degrees off.
8. Install the J 42069-20 to camshaft gears 1 and 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J 42069-20.
10. Repeat the procedure again if the marks do not align.
11. If camshaft gears 1 and 2 are properly aligned, set the final timing belt tensioner as outlined in Timing Belt Tensioner Adjustment at the end of this procedure.

Marks on Camshaft Gears 1 and 2 Align to the RIGHT of J 42069-20

1. Loosen the upper idler pulley bolt.
2. Slacken the timing belt by turning the eccentric on the upper idler pulley CLOCKWISE with the J 42069-40 until the marks on the camshaft gears and the marks on the J 42069-20 are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position. Tighten: Tighten the upper idler pulley bolt, while holding the eccentric in place with the J 42069-40 to prevent movement, to 40 N.m (30 lb ft).
3. Remove the J 42069-10 and the J 42069-20.
4. Rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J 42098 until reaching 60 degrees Before Top Dead Center (BTDC). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The 60 degrees BTDC point can be identified by the index mark on the oil pump cover.
5. Install the J 42069-10 to the crankshaft sprocket with the knurled bolt.
6. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The #1 cylinder is at Top Dead Center (TDC) at this point.
7. Secure the moveable lever of the tool to the water pump pulley flange. IMPORTANT: Ensure that the crankshaft is not 180 degrees off TDC. The reference marks on the camshaft gears should be aligned with the corresponding notches on the rear timing belt cover at this point. If they are not aligned, the engine is 180 degrees off.
8. Install the J 42069-20 to camshaft gears 1 and 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J 42069-20.
10. Repeat the procedure again if the marks do not align.
11. If camshaft gears 1 and 2 are properly aligned, set the final timing belt tensioner as outlined in Timing Belt Tensioner Adjustment at the end of this procedure.

Timing Belt Tensioner Adjustment

Scheme 54

1. With the J 42069-10 in place locking the crankshaft at TDC: Loosen the timing belt eccentric locking nut. Turn the eccentric counter clockwise to full stop, then back to the following specification: NEW BELT Until the reference mark is 3-4 mm (0.118-0.157 in) (a) above the datum line. USED BELT Until the reference mark is aligned with the datum line. Tighten: Tighten the timing belt tensioner eccentric locking nut to 20 N.m (15 lb ft).
2. If the timing belt upper idler pulley bolt has not been previously torqued to specification: Tighten: Tighten the timing belt upper idler pulley bolt while holding the eccentric in place with the J 42069-40 to prevent movement, to 40 N.m (30 lb ft).
3. Remove the J 42069-10 and the J 42069-20.
4. For final inspection, once again rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J 42098 until reaching 60 degrees BTDC. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
5. Install the J 42069-10 to the crankshaft sprocket.
6. Rotate the crankshaft in the engine rotational direction, clockwise using the J 42098 until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Secure the moveable lever of the tool to the water pump pulley flange.
8. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover, as well as the mark on the crankshaft sprocket and oil pump housing.
9. Use the J 42069-20 to inspect the alignment of the camshaft gears 3 and 4.
10. Use the J 42069-20 to inspect the alignment of the camshaft gears 1 and 2.
11. Repeat the procedure again if the marks do not align exactly.
12. If the reference marks match exactly, further timing belt adjustment IS NOT necessary. Continue with reassembly of the engine.
13. Remove the J 42069-10 and the J 42069-20.
14. Install the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
15. Install the timing belt cover. Refer to «Timing Belt Cover Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .
2. Remove the timing belt tensioner bracket bolts.
3. Remove the timing belt tensioner bracket with the tensioner and idler pulleys attached.

1. Install the timing belt tensioner bracket with the tensioner and idler pulleys attached.
2. Install the timing belt tensioner bracket bolts. Tighten: Tighten the timing belt tensioner bracket bolts to 40 N.m (30 lb ft).
3. Install the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .

1. Remove the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .
2. Remove the timing belt idler pulley bolt.
3. Remove the timing belt idler pulley (2).

1. Install the timing belt idler pulley (2).
2. Install the timing belt idler pulley bolt. Tighten: Tighten the timing belt idler pulley bolt until snug, the bolt will be tightened to specifications during the timing belt installation and adjustment procedure. Install the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .

Camshaft Drive Sprocket Replacement

Tools Required

1. J 36660-A Torque/Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42069 Timing Belt Alignment Kit. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .
2. As a precaution, rotate the crankshaft counter clockwise using the J 42098 until 60 degrees Before Top Dead Center (BTDC). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . The 60 degrees BTDC point can be identified by the index mark on the oil pump cover, at this position the valves will not touch the pistons.
3. Remove the camshaft drive sprocket bolt. The J 42069-1 and J 42069-2 will hold the drive sprockets in place while removing the bolts. Discard the camshaft drive sprocket bolt.
4. Remove the J 42069-1 and J 42069-2.
5. Remove the camshaft drive sprocket.

1. Ensure the crankshaft is 60 degrees BTDC. The 60 degrees BTDC point can be identified by the index mark on the oil pump cover, at this position the valves will not touch the pistons.
2. Install the camshaft drive sprocket. Ensure the camshaft pin is installed in the correct numbered slot on the drive sprocket.
3. Install the new camshaft drive sprocket bolt.
4. If necessary, turn the camshaft drive sprockets in order to align the reference marks on the camshaft gears with the corresponding notches on the rear timing belt cover.
5. Complete the following in order to tighten the new camshaft drive sprocket bolt: Use the relevant J 42069-1 and/or J 42069-2 to hold the camshaft drive sprocket and the camshaft in place while tightening the camshaft drive sprocket bolt. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices. Tighten the camshaft drive sprocket bolt in sequence: Tighten: Tighten the camshaft drive sprocket bolt to 50 N.m (37 lb ft). Using the J 36660-A , rotate the crankshaft gear bolt 60 degrees. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Repeat the sequence turning the crankshaft gear bolt an additional 15 degrees.
6. Turn the crankshaft back to Top Dead Center (TDC), using the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Install the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .

1. Remove the camshaft drive sprockets. Refer to «Camshaft Drive Sprocket Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-drive-sprocket-replacement) .
2. Remove the timing belt tensioner locking nut, washer and pulley.
3. Disconnect the knock sensor pigtail (1) from the bracket.
4. Remove the knock sensor pigtail from the retaining clips on the rear timing belt cover.
5. Remove the rear timing belt cover bolts.
6. Remove the rear timing belt cover threaded pin (1).
7. Remove the rear timing belt cover.

1. Position the rear timing belt cover to the engine.
2. Install the rear timing belt cover bolts. Tighten: Tighten the rear timing belt cover bolts to 8 N.m (71 lb in).
3. Coat the threaded pin (1) with thread locking compound, GM P/N 12345382 (Canadian P/N 10953489), or equivalent.
4. Install the rear timing belt cover threaded pin (1). Tighten: Tighten the rear timing belt cover threaded pin to 10 N.m (89 lb in).
5. Install the knock sensor pigtail into the retaining clips. Ensure that the pigtail does not contact any moving parts.
6. Connect the knock sensor pigtail (1) to the bracket.
7. Install the timing belt tensioner pulley, washer and locking nut. The locking nut will be tighten to specifications after all final adjustments are made.
8. Install the camshaft drive sprockets. Refer to «Camshaft Drive Sprocket Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-drive-sprocket-replacement) .

1. Remove the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the left ignition coil. Refer to «Ignition Coil(s) Replacement - Bank 2»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
3. Disconnect the following from the front of the throttle body heater inlet hose/pipe bracket. The camshaft position (CMP) sensor connector The left knock sensor connector (1) The vacuum pipe retainer
4. Disconnect the heated oxygen sensor connector (2) from the rear of the throttle body heater inlet hose/pipe (3).
5. Remove the bolt securing the throttle body heater inlet hose/pipe to the engine rear lift bracket and position aside.
6. Remove the left camshaft cover bolts (1).
7. Remove the left camshaft cover (2) from the cylinder head.
8. Remove the left camshaft cover seals (3).
9. Clean and inspect the cylinder head sealing surface.
10. Clean and inspect the left camshaft cover. Refer to «Camshaft Cover Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-cover-cleaning-and-inspection) .

1. Lightly coat the new O-ring seals with clean engine oil prior to installation to assist in holding the O-ring seals to the camshaft cover.
2. Install the camshaft cover seals to the camshaft cover.
3. Apply a thin coat of silicone sealer GM P/N 12346286 (Canadian P/N 10953472), to the corners of the front and back of the seals.
4. Apply a 3 mm (0.12 in) bead of silicone sealer GM P/N 12346286 (Canadian P/N 10953472), at the front and rear of the camshaft cover between the seals.
5. Position the camshaft cover (2) to the cylinder head, aligning the datum with the hole in the cylinder head.
6. Install the camshaft cover bolts (1). Tighten: Tighten the camshaft cover bolts to 8 N.m (71 lb in).
7. Install the bolt securing the throttle body heater inlet hose/pipe to the engine rear lift bracket. Tighten: Tighten the throttle body heater inlet hose/pipe bolts to 9 N.m (80 lb in).
8. Connect the heated oxygen sensor connector (2) to the rear of the throttle body heater inlet hose/pipe (3).
9. Connect the following to the front of the throttle body heater inlet hose/pipe bracket. The CMP sensor connector The left knock sensor connector (1) The vacuum pipe retainer
10. Install the left ignition coil. Refer to «Ignition Coil(s) Replacement - Bank 2»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
11. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the right ignition coil. Refer to «Ignition Coil(s) Replacement - Bank 1»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
3. Remove the knock sensor wire harness bolt and bracket.
4. Remove the right camshaft cover bolts (1).
5. Remove the right camshaft cover (2) from the cylinder head.
6. Remove the right camshaft cover seals (4).
7. Clean and inspect the cylinder head sealing surface.
8. Clean and inspect the right camshaft cover. Refer to «Camshaft Cover Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-cover-cleaning-and-inspection) .

1. Lightly coat the new O-ring seals with clean engine oil prior to installation to assist in holding the O-ring seals to the camshaft cover.
2. Install the camshaft cover seals to the camshaft cover.
3. Apply a thin coat of silicone sealer GM P/N 12346286 (Canadian P/N 10953472), to the corners of the front and back of the seals.
4. Apply a 3 mm (0.12 in) bead of silicone sealer GM P/N 12346286 (Canadian P/N 10953472), at the front and rear of the camshaft cover between the seals.
5. Position the camshaft cover (2) to the cylinder head, aligning the datum with the hole in the cylinder head.
6. Install the camshaft cover bolts (1). Tighten: Tighten the camshaft cover bolts to 8 N.m (71 lb in).
7. Install the knock sensor wire harness bracket and bolt. Tighten: Tighten the knock sensor wire harness bracket bolt to 8 N.m (71 lb in).
8. Install the right ignition coil. Refer to «Ignition Coil(s) Replacement - Bank 1»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
9. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

J 35268-A Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

1. If equipped with RPO code KA3, remove the bolt (1) securing the coolant heater ground lead (2) to the camshaft bearing cap (3).
2. Remove the left camshaft cover. Refer to «Camshaft Cover Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the left camshaft drive sprockets. Refer to «Camshaft Drive Sprocket Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-drive-sprocket-replacement) .
4. Alternately loosen the camshaft bearing cap bolts a few turns at a time using the loosening sequence.
5. Remove the camshaft bearing cap bolts.
6. Remove the camshaft bearing caps. Note the code marks on the bearing caps (R1, R2, R3, etc.). The bearing caps for the left cylinder head is marked with an R, followed by a number.
7. Remove the camshafts from the cylinder head.
8. Remove the camshaft seals.
9. Clean all of the bearing surfaces.
10. Clean all of the sealing surfaces.
11. Clean and inspect the camshafts. Refer to «Camshaft and Bearings Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Choose the correct camshaft to be installed. Camshaft Identification 2.6L (LY9) The intake camshaft is stamped with the letter "F" next to bearing 1. The exhaust camshaft is stamped with the letter "N" next to bearing 1. 3.2L (LA3) The intake camshaft is stamped with the letter "G" next to bearing 1. The exhaust camshaft is stamped with the letter "J" next to bearing 1.
2. Lubricate the following with GM P/N 1052367 (Canadian P/N 992869), or equivalent: Camshaft bearing surfaces Camshaft lobes
3. Install the camshafts to the cylinder head.
4. Apply a small amount of GM P/N 1052942 (Canadian P/N 10953466), or equivalent on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and the cylinder head.
5. Install the camshaft bearing caps according to the identification marks.
6. Install the camshaft bearing cap bolts. Tighten: Alternately hand tighten the camshaft bearing cap bolts in sequence a few turns at a time until all caps are fully seated. Tighten the camshaft bearing cap bolts in sequence to 8 N.m (71 lb in).
7. Coat the lip of the camshaft seal with a small amount of clean engine oil to aid in installation.
8. Use the J 35268-A to tap the camshaft seal into place. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Ensure the camshaft seal is fully and evenly seated.
9. Install the left camshaft drive sprockets. Refer to «Camshaft Drive Sprocket Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-drive-sprocket-replacement) .
10. Install the left camshaft cover. Refer to «Camshaft Cover Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
11. If equipped with RPO code KA3, install the bolt (1) securing the coolant heater ground lead (2) to the camshaft bearing cap (3). Tighten: Tighten the coolant heater ground lead bolt to 9 N.m (80 lb in).

J 35268-A Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

1. Remove the right camshaft cover. Refer to «Camshaft Cover Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the right camshaft drive sprockets. Refer to «Camshaft Drive Sprocket Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-drive-sprocket-replacement) .
3. Alternately loosen the camshaft bearing cap bolts a few turns at a time using the loosening sequence.
4. Remove the camshaft bearing cap bolts.
5. Remove the camshaft bearing caps. Note the code marks on the bearing caps (L1, L2, L3, etc.). The bearing caps for the right cylinder head is marked with an L, followed by a number.
6. Remove the camshafts from the cylinder head.
7. Remove the camshaft seals.
8. Clean all of the bearing surfaces.
9. Clean all of the sealing surfaces.
10. Clean and inspect the camshafts. Refer to «Camshaft and Bearings Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Choose the correct camshaft to be installed. Camshaft Identification 2.6L (LY9) The intake camshaft is stamped with the letter "F" next to bearing 1. The exhaust camshaft is stamped with the letter "N" next to bearing 1. 3.2L (LA3) The intake camshaft is stamped with the letter "G" next to bearing 1. The exhaust camshaft is stamped with the letter "J" next to bearing 1.
2. Lubricate the following with GM P/N 1052367 (Canadian P/N 992869), or equivalent: Camshaft bearing surfaces Camshaft lobes
3. Install the camshafts to the cylinder head.
4. Apply a small amount of GM P/N 1052942 (Canadian P/N 10953466), or equivalent on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and the cylinder head.
5. Install the camshaft bearing caps according to the identification marks.
6. Install the camshaft bearing cap bolts. Tighten: Alternately hand tighten the camshaft bearing cap bolts in sequence a few turns at a time until all caps are fully seated. Tighten the camshaft bearing cap bolts in sequence to 8 N.m (71 lb in).
7. Coat the lip of the camshaft seal with a small amount of clean engine oil to aid in installation.
8. Use the J 35268-A to tap the camshaft seal into place. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Ensure the camshaft seal is fully and evenly seated.
9. Install the right camshaft drive sprockets. Refer to «Camshaft Drive Sprocket Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__camshaft-drive-sprocket-replacement) .
10. Install the right camshaft cover. Refer to «Camshaft Cover Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the left camshafts. Refer to «Camshaft Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the valve lifters from the bores using a magnet.
3. Place the valve lifters in a rack sequentially so they can be reinstalled in their original order if the valve lifters are to be reused.

1. Lubricate the valve lifters with prelube, GM P/N United States 1052367, GM P/N Canada 992869, or equivalent.
2. Install the valve lifters in their original position if not replaced.
3. Install the left camshafts. Refer to «Camshaft Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the right camshafts. Refer to «Camshaft Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the valve lifters from the bores using a magnet.
3. Place the valve lifters in a rack sequentially so they can be reinstalled in their original order if the valve lifters are to be reused.

1. Lubricate the valve lifters with prelube, GM P/N United States 1052367, GM P/N Canada 992869, or equivalent.
2. Install the valve lifters in their original position if not replaced.
3. Install the right camshafts. Refer to «Camshaft Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Cylinder Head Replacement - Left

Tools Required

1. J 28410 Gasket Remover. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 36660-A Torque Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Drain the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
2. Remove the intake manifold flange. Refer to «Intake Manifold Flange Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
4. Disconnect the engine wiring harness from the engine rear lift bracket.
5. Remove the left camshafts. Refer to «Camshaft Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
6. Remove ONLY the 2 bolts securing the rear timing belt cover to the left cylinder head.
7. Remove the left exhaust manifold. Refer to «Exhaust Manifold Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-manifold-replacement-left-la3) in Engine Exhaust.
8. Remove the coolant outlet pipe. Refer to «Coolant Pipe Replacement - Outlet»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
9. Remove the left cylinder head bolts (1 thru 8) in the sequence shown. Discard the cylinder head bolts.
10. Remove the left cylinder head from the engine block.
11. Place the cylinder head on a flat, clean surface with the combustion chambers face-up in order to prevent damage to the deck face.
12. Remove the left cylinder head gasket.
13. Remove all remaining gasket material from the engine block using the J 28410 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
14. Inspect the cylinder head gasket mating surface on the engine block.
15. Clean and inspect the left cylinder head. Refer to «Cylinder Head Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-cleaning-and-inspection) .
16. Disassemble the left cylinder head if necessary. Refer to «Cylinder Head Disassemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-disassemble) .

1. Assemble the left cylinder head if necessary. Refer to «Cylinder Head Assemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-assemble) .
2. Install the new left cylinder head gasket with OBEN/TOP imprint facing upward.
3. Position the cylinder head to the engine block.
4. Install the new cylinder head bolts. Tighten: Tighten the cylinder head bolts in sequence to 25 N.m (18 lb ft).
5. Following the tightening sequence use the J 36660-A to rotate the cylinder head bolts as described in the following steps: Tighten: Rotate the cylinder head bolts 90 degrees. Rotate the cylinder head bolts an additional 90 degrees. Rotate the cylinder head bolts an additional 90 degrees. Rotate the cylinder head bolts an additional 15 degrees.
6. Install the coolant outlet pipe. Refer to «Coolant Pipe Replacement - Outlet»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
7. Install the left exhaust manifold. Refer to «Exhaust Manifold Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-manifold-replacement-left-la3) in Engine Exhaust.
8. Install the 2 bolts securing the rear timing belt cover to the left cylinder head. Tighten: Tighten the rear timing belt cover bolts to 8 N.m (71 lb in).
9. Install the left camshafts. Refer to «Camshaft Replacement - Left»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
10. Connect the engine wiring harness from the engine rear lift bracket.
11. Install the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
12. Install the intake manifold flange. Refer to «Intake Manifold Flange Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
13. Fill the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.

Cylinder Head Replacement - Right

Tools Required

1. J 28410 Gasket Remover. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 36660-A Torque Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Drain the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
2. Remove the intake manifold flange. Refer to «Intake Manifold Flange Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
4. Remove the right camshafts. Refer to «Camshaft Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
5. Remove the timing belt tensioner. Refer to «Timing Belt Tensioner Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
6. Remove ONLY the 2 bolts securing the rear timing belt cover to the right cylinder head.
7. Remove the right exhaust manifold. Refer to «Exhaust Manifold Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-manifold-replacement-right-la3) in Engine Exhaust.
8. Remove the right cylinder head bolts (1 thru 8) in the sequence shown. Discard the cylinder head bolts.
9. Remove the right cylinder head from the engine block.
10. Place the cylinder head on a flat, clean surface with the combustion chambers face-up in order to prevent damage to the deck face.
11. Remove the right cylinder head gasket.
12. Remove all remaining gasket material from the engine block using the J 28410 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
13. Inspect the cylinder head gasket mating surface on the engine block.
14. Clean and inspect the right cylinder head. Refer to «Cylinder Head Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-cleaning-and-inspection) .
15. Disassemble the right cylinder head if necessary. Refer to «Cylinder Head Disassemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-disassemble) .

1. Assemble the right cylinder head if necessary. Refer to «Cylinder Head Assemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__cylinder-head-assemble) .
2. Install the new right cylinder head gasket with OBEN/TOP imprint facing upward.
3. Position the cylinder head to the engine block.
4. Install the new cylinder head bolts. Tighten: Tighten the cylinder head bolts in sequence to 25 N.m (18 lb ft).
5. Following the tightening sequence use the J 36660-A to rotate the cylinder head bolts as described in the following steps: Tighten: Rotate the cylinder head bolts 90 degrees. Rotate the cylinder head bolts an additional 90 degrees. Rotate the cylinder head bolts an additional 90 degrees. Rotate the cylinder head bolts an additional 15 degrees.
6. Install the right exhaust manifold. Refer to «Exhaust Manifold Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-manifold-replacement-right-la3) in Engine Exhaust.
7. Install the 2 bolts securing the rear timing belt cover to the right cylinder head. Tighten: Tighten the rear timing belt cover bolts to 8 N.m (71 lb in).
8. Install the timing belt tensioner. Refer to «Timing Belt Tensioner Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
9. Install the right camshafts. Refer to «Camshaft Replacement - Right»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
10. Install the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
11. Install the intake manifold flange. Refer to «Intake Manifold Flange Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
12. Fill the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.

Engine Flywheel Replacement

Tools Required

1. J 36660-A Torque/Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the transmission. Refer to «Transmission Replacement (3.2L)»(/cadillac/cts/i-2002-2007/remont/automatic-trans/#automatic-transmission-5l40-e-introduction-service-replacement) in Automatic Transmission-5L40-E.
2. Counterhold the crankshaft with the J 42098 and remove the flywheel bolts. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Discard the flywheel bolts.
3. Remove the engine flywheel and retainer from the crankshaft.
4. Clean the rear crankshaft flange.
5. Clean and inspect the engine flywheel. Refer to «Engine Flywheel Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Install the engine flywheel and retainer to the crankshaft.
2. Coat the new flywheel bolts with thread retaining compound, GM P/N 12345493 (Canadian P/N 10953488).
3. Counterhold the crankshaft with the J 42098 and install the new flywheel bolts. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten: Tighten the flywheel bolts to 65 N.m (48 lb ft).
4. Use the J 36660-A to rotate the flywheel bolts in the following sequence: Tighten: The first pass rotate the flywheel bolts 30 degrees. The second and the final pass rotate the flywheel bolts an additional 15 degrees.
5. Install the transmission. Refer to «Transmission Replacement (3.2L)»(/cadillac/cts/i-2002-2007/remont/automatic-trans/#automatic-transmission-5l40-e-introduction-service-replacement) in Automatic Transmission-5L40-E.

J 42067 Rear Main Oil Sealer Installer. See Special Tools and Equipment .

1. Remove the engine flywheel from the crankshaft. Refer to «Engine Flywheel Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-flywheel-replacement) .
2. Center punch the steel ring of the rear main oil seal.
3. Carefully drill a small, shallow, pilot hole into the steel ring of the rear main oil seal.
4. Screw in a self-tapping screw.
5. Use pliers to pull the rear main oil seal out.
6. Clean all sealing surfaces.

1. Coat the lip of the rear main oil seal with clean engine oil.
2. Use the J 42067 to install the rear main oil seal. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Clean the rear crankshaft flange.
4. Install the engine flywheel to the crankshaft. Refer to «Engine Flywheel Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-flywheel-replacement) .

Crankshaft Pulley Replacement

Tools Required

1. J 36660-A Torque/Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42065 Crank Hub Holding Tool. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .
2. Mount the J 42065 to the crankshaft gear. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Complete the following in order to remove the crankshaft gear bolt: Counterhold the crankshaft gear using the J 42065 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Remove the crankshaft gear bolt using the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Discard the crankshaft gear bolt.
4. Remove the crankshaft gear.
5. Remove the oil pump collar.

1. Coat the lip of the crankshaft front oil seal with a small amount of clean engine oil, to aid in installation.
2. Install the oil pump collar fully into the crankshaft front oil seal.
3. Install the crankshaft gear to the crankshaft.
4. Mount the J 42065 to the crankshaft gear. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
5. Complete the following in order to install the new crankshaft gear bolt: Counterhold the crankshaft gear using the J 42065 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices. NOTE: Refer to «Torque to Yield Bolts Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__torque-to-yield-bolts-notice) in Cautions and Notices. Install the new crankshaft gear bolt using the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the crankshaft gear bolt in sequence: Tighten: Tighten the crankshaft gear bolt to 250 N.m (184 lb ft). Using the J 36660-A , rotate the crankshaft gear bolt 45 degrees. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Repeat the sequence turning the crankshaft gear bolt an additional 15 degrees.
6. Remove the J 42065 from the crankshaft gear. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Install the timing belt. Refer to «Timing Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__timing-belt-replacement) .

J 35268-A Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

1. Remove the crankshaft drive gear. Refer to «Crankshaft Pulley Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__crankshaft-pulley-replacement) .
2. Carefully drill a small, shallow, pilot hole into the steel ring of the crankshaft front oil seal.
3. Screw in a self-tapping screw.
4. Use pliers to pull out the crankshaft front oil seal.
5. Clean the sealing surface.

1. Tap the crankshaft front oil seal into place using the J 35268-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Install the crankshaft drive gear. Refer to «Crankshaft Pulley Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__crankshaft-pulley-replacement) .

1. Remove the bolt (2) securing the following to the cylinder head: The oil level indicator tube (4) The coolant outlet pipe (3) The engine front lift bracket (1)
2. Grasp the oil level indicator tube (4) firmly.
3. Pull the oil level indicator tube (4) upward from the engine block.
4. Remove the O-ring seals from the oil level indicator tube. Discard the O-rings.

1. Lubricate 2 new O-ring seals with clean engine oil.
2. Install the new O-ring seals around the oil level indicator tube grooves.
3. Install the oil level indicator tube (4) into the engine block.
4. Install the bolt (2) securing the following to the cylinder head: The oil level indicator tube (4) The coolant outlet pipe (3) The engine front lift bracket (1) Tighten: Tighten the oil level indicator tube bolt to 20 N.m (15 lb ft).

1. Remove the oil filter. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the left catalytic converter. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) in Engine Exhaust.
3. Remove the 2 oil filter adapter bolts.
4. Remove the oil filter adapter plug.
5. Remove the O-ring from the oil filter adapter plug, discard the O-ring.
6. Remove the female screw located inside the oil filter adapter.
7. Remove the oil filter adapter from the engine block.
8. Remove the O-ring from the oil filter adapter, discard the O-ring.

1. Lubricate the NEW oil filter adapter O-ring with clean engine oil.
2. Install the NEW O-ring into the oil filter adapter groove.
3. Position the oil filter adapter to the engine block.
4. To ensure proper orientation of the oil filter adapter, loosely install the oil filter adapter bolts through the adapter and into the engine block.
5. Install the female screw into the oil filter adapter. Tighten: Tighten the oil filter adapter female screw to 25 N.m(18 lb ft).
6. Lubricate the NEW oil filter adapter plug O-ring with clean engine oil.
7. Install the O-ring onto the oil filter adapter plug.
8. Install the oil filter adapter plug. Tighten: Tighten the oil filter adapter plug to 25 N.m(18 lb ft).
9. Tighten the 2 oil filter adapter bolts installed in step 4. Tighten: Tighten the oil filter adapter bolts to 20 N.m(15 lb ft).
10. Install the left catalytic converter. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) in Engine Exhaust.
11. Install the oil filter. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Drain the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the front frame. Refer to «Frame Replacement - Front»(/cadillac/cts/i-2002-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) .
3. Remove the bolt securing transmission fluid cooler pipes brace to the engine.
4. Remove the 3 lower transmission mounting bolts.
5. Remove the oil pan bolts.
6. Carefully pry the oil pan away from the engine block. Remove the oil pan from the engine block.
7. Clean the cylinder block mating surfaces.
8. Clean and inspect the oil pan. Refer to «Oil Pan Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-pan-cleaning-and-inspection) .

1. Apply a bead of silicone sealing compound, GM P/N 12346286 (Canadian P/N 10953472), or equivalent, to the oil pan mating surface.
2. Position the oil pan to the engine block.
3. Install the oil pan bolts. Tighten: Tighten the oil pan bolts in sequence to 15 N.m (11 lb ft).
4. Install the 3 lower transmission mounting bolts. Tighten: Tighten the transmission mounting bolts to 50 N.m (37 lb ft).
5. Install the bolt securing transmission fluid cooler pipes brace to the engine. Tighten: Tighten the transmission fluid cooler pipes brace bolt to 25 N.m (18 lb ft).
6. Install the front frame. Refer to «Frame Replacement - Front»(/cadillac/cts/i-2002-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) .
7. Fill the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
8. Inspect for oil leaks after engine start up.

1. Disconnect the electrical connector (2) from the engine oil pressure switch (1).
2. Remove the engine oil pressure switch (1) from the oil pump.

1. Install the engine oil pressure switch (1) to the oil pump. Tighten: Tighten the engine oil pressure switch to 40 N.m (30 lb ft).
2. Connect the electrical connector (2) to the engine oil pressure switch (1).
3. Inspect for oil leaks after engine start up.
4. Adjust the engine oil level to the full mark.

1. Remove the oil pan. Refer to «Oil Pan Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the oil pump pipe screen brace bolts (2).
3. Remove the oil pump pipe screen bolts (1).
4. Remove the oil pump pipe screen from the engine.
5. Remove the O-ring seal. Do not reuse the seal.
6. Clean and inspect the oil pump pipe screen.

1. Insert a new O-ring seal fully into the seal groove.
2. Position the oil pump pipe screen to the engine.
3. Install the oil pump pipe screen bolts (1). Tighten: Tighten the oil pump pipe screen bolts to 8 N.m (71 lb in).
4. Install the oil pump pipe screen brace bolts (2). Tighten: Tighten the oil pump pipe screen brace bolts to 8 N.m (71 lb in).
5. Install the oil pan. Refer to «Oil Pan Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

J 35268-A Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

1. Remove the oil pump pipe and screen assembly. Refer to «Oil Pump Pipe and Screen Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the crankshaft drive gear. Refer to «Crankshaft Pulley Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__crankshaft-pulley-replacement) .
3. Remove the engine oil pressure switch. Refer to «Engine Oil Pressure Sensor and/or Switch Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Remove the generator lower mounting bolt (2).
5. Loosen the generator upper mounting bolt (1).
6. Pivot the generator out of the way and tighten the generator upper mounting bolt only enough to hold in position.
7. Remove the oil pump bolts.
8. Remove the oil pump and gasket.
9. Remove the front main oil seal from the oil pump.
10. Clean the engine block and oil pan sealing surfaces.
11. Clean and inspect the oil pump. Refer to «Oil Pump Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-pump-cleaning-and-inspection) .
12. Disassemble the oil pump if necessary. Refer to «Oil Pump Disassemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-pump-disassemble) .

1. Assemble the oil pump if necessary. Refer to «Oil Pump Assemble»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-pump-assemble) .
2. Coat only the pump side of the new oil pump gasket with a thin, even coating of GM P/N 1052942 (Canadian P/N 10953466), or equivalent.
3. Install the oil pump gasket.
4. Position the oil pump to the engine block (1) while aligning the guide pins (2).
5. Coat the oil pump bolts with GM P/N 12345382 (Canadian P/N 10953489), or equivalent.
6. Install the oil pump bolts. Tighten: Tighten the oil pump bolts in sequence to 12 N.m (106 lb in).
7. Tap the crankshaft front oil seal into place using the J 35268-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
8. Release and pivot the generator into place.
9. Install the generator lower mounting bolt (2). Tighten: Tighten the generator mounting bolts to 35 N.m (26 lb ft).
10. Re-tighten the oil pump bolts. Tighten: Tighten the oil pump bolts in sequence to 28 N.m (21 lb ft).
11. Install the engine oil pressure switch. Refer to «Engine Oil Pressure Sensor and/or Switch Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
12. Install the crankshaft drive gear. Refer to «Crankshaft Pulley Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__crankshaft-pulley-replacement) .
13. Install the oil pump pipe and screen assembly. Refer to «Oil Pump Pipe and Screen Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the following components according to the RPO code: LHD The air inlet grill panel. Refer to «Air Inlet Grille Panel Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) or «Air Inlet Grille Panel Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End. The fasteners securing the front air inlet panel assembly to the battery tray and cowl. The front air inlet panel assembly from the vehicle. RHD The wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
2. Disconnect the electrical connector (2) from the coil pack (1).
3. Remove the heated oxygen sensor connector (1) from the bracket (3).
4. Remove the bolt securing the surge tank outlet pipe to the vent housing-LHD ONLY.
5. Disconnect the following from the crankcase vent housing (4): The crankcase ventilation fresh air hose (2) The crankcase ventilation dirty air hose (3) The engine wiring harness push retainer
6. Remove the bolt (6) securing the following to the crankcase vent housing (4): The heated oxygen sensor connector bracket (5) The evaporative emission (EVAP) canister purge valve bracket (1)
7. Remove the crankcase vent housing bolts.
8. Remove the crankcase vent housing from the engine block.
9. Plug the open ports to the crankcase, in order to prevent foreign objects from entering the engine.
10. Clean and inspect the surface of the engine block and crankcase vent housing.

1. Apply a 3 mm (0.12 in) bead of sealant GM P/N 1052942 (Canadian P/N 10953466) to the groove of the crankcase vent housing.
2. Remove the plugs from the crankcase ports.
3. Position the crankcase vent housing to the engine block.
4. Install the crankcase vent housing bolts. Tighten: Tighten the crankcase vent housing bolts to 8 N.m (71 lb in).
5. Install the bolt (6) securing the following to the crankcase vent housing (4): The EVAP canister purge valve bracket (1) The heated oxygen sensor connector bracket (5) Tighten: Tighten the EVAP canister purge valve bracket bolt to 8 N.m (71 lb in).
6. Connect the following to the crankcase vent housing (4): The crankcase ventilation fresh air hose (2) The crankcase ventilation dirty air hose (3) The engine wiring harness push retainer
7. Install the heated oxygen sensor connector (1) to the bracket (3).
8. Install the bolt securing the surge tank outlet pipe to the vent housing-LHD ONLY. Tighten: Tighten the surge tank outlet pipe to vent housing bolt to 9 N.m (80 lb in).
9. Connect the electrical connector (2) to the coil pack (1).
10. Install the following components according to the RPO code: LHD Position the front air inlet panel assembly to the battery tray and cowl. Install the fasteners securing the front air inlet panel assembly to the battery tray and cowl. Tighten: Tighten the front air inlet panel assembly fasteners to 6 N.m (53 lb in). The air inlet grill panel. Refer to «Air Inlet Grille Panel Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) or «Air Inlet Grille Panel Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End. RHD The wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.

1. Remove the oil filter adapter. Refer to «Oil Filter Adapter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the following from the engine block: The oil cooler outlet fitting (1) The oil cooler inlet fitting (2)
3. Lower the vehicle.
4. Remove the following components according to the RPO code: LHD The wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems. RHD The air inlet grill panel. Refer to «Air Inlet Grille Panel Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) or «Air Inlet Grille Panel Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End. The fasteners securing the front air inlet panel assembly to the battery tray and cowl. The front air inlet panel assembly from the vehicle.
5. Remove the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
6. Remove the following from the engine oil cooler: The oil cooler inlet fitting The oil cooler outlet fitting
7. Note the positioning of the 4 seals.
8. Remove the oil cooler lines from the engine.

1. Position the oil cooler lines to the engine.
2. Install the oil cooler inlet and outlet fittings to the engine oil cooler. Use 4 new seals. Tighten: Tighten the oil cooler inlet fitting to 30 N.m (22 lb ft). Tighten the oil cooler outlet fitting to 30 N.m (22 lb ft).
3. Install the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
4. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
5. Install the oil cooler inlet (2) and outlet fittings (1) to the engine block. Tighten: Tighten the oil cooler inlet fitting (2) to 30 N.m (22 lb ft). Tighten the oil cooler outlet fitting (1) to 30 N.m (22 lb ft).
6. Install the oil filter adapter. Refer to «Oil Filter Adapter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Install the following components according to the RPO code: LHD The wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems. RHD Position the front air inlet panel assembly to the battery tray and cowl. Install the fasteners securing the front air inlet panel assembly to the battery tray and cowl. Tighten: Tighten the front air inlet panel assembly fasteners to 6 N.m (53 lb in). The air inlet grill panel. Refer to «Air Inlet Grille Panel Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) or «Air Inlet Grille Panel Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.

1. Remove the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Remove the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
3. Remove the following from the engine oil cooler: The oil cooler inlet fitting The oil cooler outlet fitting
4. Note the positioning of the 4 seals.
5. Remove the oil cooler lines from the engine. Refer to «Oil Cooler Line Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
6. Remove the engine oil cooler inlet and outlet nuts (1).
7. Remove the engine oil cooler cover bolts (2).
8. Remove the engine oil cooler cover.
9. Remove the engine oil cooler from the engine.
10. Clean the cylinder block mating surfaces.
11. Clean and inspect the oil cooler. Refer to «Oil Cooler Cleaning and Inspection»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__oil-cooler-cleaning-and-inspection) .

1. Install the engine oil cooler inlet/outlet O-ring seals.
2. Apply a 2 mm (0.08 in) bead of GM P/N 12378521(Canadian P/N 88901148), or equivalent, in the groove around the engine oil cooler cover.
3. Position the engine oil cooler to the engine.
4. Apply thread adhesive GM P/N 12345382 (Canadian P/N 109534382) to the engine oil cooler cover bolts.
5. Install the engine oil cooler cover bolts (2). Tighten: Tighten the engine oil cooler cover bolts in sequence to 20 N.m (15 lb ft).
6. Install the engine oil cooler inlet and outlet nuts (1). Tighten: Tighten the engine oil cooler inlet and outlet nuts to 30 N.m (22 lb ft).
7. Position the oil cooler line fittings to the oil cooler.
8. Install the oil cooler inlet and outlet fittings to the engine oil cooler. Use 4 new seals. Tighten: Tighten the oil cooler inlet fitting to 30 N.m (22 lb ft). Tighten the oil cooler outlet fitting to 30 N.m (22 lb ft).
9. Install the oil cooler lines to the engine. Refer to «Oil Cooler Line Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
10. Install the water crossover. Refer to «Coolant Crossover Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
11. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Engine Replacement (5L40-E)

The following procedure requires the removal of the engine and transmission as an assembly.

Tools Required

1. J 38185 Hose Clamp Pliers. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 39456 Universal Engine Tilter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the hood. Refer to «Hood Replacement»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
2. Remove the wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
3. Remove the fasteners securing the front air inlet panel to the battery tray and cowl.
4. Remove the front air inlet panel from the vehicle.
5. Disconnect the battery negative cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
6. Remove the bolt (1) securing the battery negative cable to the side rail.
7. Disconnect the body harness connector (3) from the battery negative cable and secure to the engine.
8. Depress the tabs in order to remove the underhood fuse block cover from the underhood fuse block.
9. Remove the nut (1) securing the battery positive cable (2) to the underhood fuse block.
10. Disconnect the battery positive cable from the battery and secure to the engine.
11. Disconnect the engine wiring harness electrical connector from the underhood fuse block and secure to the engine.
12. Disconnect the engine wiring harness connector at the right shock tower and secure to the engine.
13. Unlock the transmission control module electrical connector by pulling the retainer (2) away from the electrical connector (1).
14. Carefully disconnect the electrical connector (1) from the transmission control module and secure to the engine.
15. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
16. Remove the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
17. Disconnect the engine wiring harness connector (1) from the coolant bypass solenoid.
18. Remove the bolt securing the engine wiring harness ground lead to the right body rail.
19. Drain the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
20. Position the J 38185 to the clamps in order to remove the surge tank inlet hose from the following: The radiator The throttle body assembly
21. Remove the inlet radiator hose. Refer to «Radiator Hose Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
22. Remove the outlet radiator hose. Refer to «Radiator Hose Replacement - Outlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
23. Position the J 38185 to the clamp (2) in order to remove the coolant bypass outlet hose from the coolant inlet pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
24. Position the J 38185 to the clamp (1) in order to remove the coolant bypass inlet hose from the afterboil coolant pump pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
25. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief Procedure»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__fuel-pressure-relief-procedure) in order to disconnect the following quick connect fittings from the fuel rail
26. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) . The return hose/pipe (1) The feed hose/pipe (2) Plug the open outlet ports to prevent fuel loss and contamination.
27. Disconnect the evaporative emission (EVAP) quick connect fitting (3). Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
28. Open the retainer (4) located at the engine control module (ECM) bracket in order to remove the chassis hose/pipes.
29. Position the J 38185 to the clamp (1) in order to remove the outlet heater hose from the afterboil coolant pump (2). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
30. Position the J 38185 to the clamp (1) in order to remove the inlet heater hose from the heater core. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
31. Position the J 38185 to the clamp in order to remove the surge tank outlet hose from the surge tank and secure to the engine. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
32. Disconnect the electrical connector (1) from the Air Conditioning (A/C) refrigerant pressure sensor (2).
33. Disconnect the 2 engine wiring harness connectors from the left body rail connectors.
34. Remove the power steering return hose nut and retainer from the A/C compressor stud.
35. Disconnect the retainer (1) securing the engine wiring harness to the A/C pressure hose and secure to the engine.
36. Remove the power steering pressure hose nut and retainer from the A/C compressor stud.
37. Remove the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
38. Remove the power steering pump mounting bolts ONLY.
39. Remove the power steering pump from the accessory mounting bracket, and position aside.
40. Disconnect the following from the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
41. Disconnect the vacuum brake booster hose from the vacuum source.
42. Remove the remote power steering fluid reservoir mounting bolts (1,3) ONLY, and position aside.
43. Disconnect the electrical connector from the A/C compressor.
44. Remove the A/C compressor mounting bolts ONLY, and position aside.
45. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
46. Remove the exhaust system. Refer to «Exhaust System Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-system-replacement-la3-ly9) in Engine Exhaust.
47. Remove the left and right catalytic converters. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) and «Catalytic Converter Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-right-la3) in Engine Exhaust.
48. Remove the catalytic converter hanger bracket. Refer to «Catalytic Converter Hanger Bracket Replacement»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
49. Remove the Electronic Brake Control Module (EBCM) connector position assurance retainer (4) from the EBCM electrical connector (1).
50. Rotate the EBCM connector tab (2) up into the unlocked position.
51. Disconnect the EBCM electrical connector (1) from the EBCM (3).
52. If equipped, disconnect the electrical connector from the brake fluid pressure sensor.
53. Disconnect the Antilock Brake System (ABS) wiring harness electrical connectors from the left and right wheel speed sensors.
54. Remove the ABS wiring harness retainers from the following: The lower control arms The electric cooling fan
55. Remove the ABS wiring harness retainers (2) from the engine frame.
56. If equipped, disconnect the variable effort steering electrical connector (1) from the power steering gear pigtail.
57. Remove the transmission fluid cooler pipes. Refer to «Transmission Fluid Cooler Hose/Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/automatic-trans/#automatic-transmission-5l40-e-introduction-service-replacement) in Automatic Transmission-5L40-E.
58. Drain the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
59. Remove the oil filter adapter. Refer to «Oil Filter Adapter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
60. Remove the right engine mount upper retaining nut.
61. Remove the left engine mount upper retaining nut.
62. Remove the transmission manual shift shaft nut.
63. Disconnect the shift linkage from the transmission.
64. Place the transmission in neutral by rotating the transmission shift shaft clockwise.
65. Disconnect the propeller shaft coupler (1) from the transmission flange ONLY. Refer to «Propeller Shaft Replacement (Automatic Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (Manual Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (CTS-V)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) in Driveline/Axle.
66. Secure the front propeller shaft (1) to the shift control lever (3) with a piece of mechanics wire (2).
67. Remove the transmission mount nuts.
68. Remove the inner transmission support mounting bolts.
69. Lower the vehicle.
70. Using a lift jack support the rear of the transmission.
71. Remove the outer transmission support mounting bolts.
72. Remove the transmission support from the vehicle.
73. Install the J 39456 to the engine lift brackets and attach to an engine lift devise. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
74. Alternate between the following in order to remove the engine/transmission assembly from the engine compartment: Carefully raise the engine/transmission assembly using the engine lift devise. Lower the lift jack supporting the rear of the transmission enough to clear the vehicles tunnel.
75. Lower the engine/transmission assembly to the floor.
76. Remove the following components from the engine if necessary: «Afterboil Coolant Pump Replacement»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Battery Negative Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Negative Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Battery Positive Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Positive Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Coolant Heater Cord Replacement (LA3, LY9, K05)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) or «Coolant Heater Cord Replacement (LA3, LY9, KA3)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Coolant Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Generator Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Starter Motor Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Surge Tank Hose/Pipe Replacement - Outlet (LHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) or «Surge Tank Hose/Pipe Replacement - Outlet (RHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Throttle Body Heater Hose/Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling
77. Remove the 2 bolts (2-4) securing the engine wiring harness ground leads (1-3) to the left cylinder head.
78. Remove the right engine mount retaining bolts and bracket.
79. Remove the left engine mount retaining bolts and bracket.
80. Disconnect the engine wiring harness retainers.
81. Disconnect the engine wiring harness connectors from the electrical components.
82. Disconnect the engine wiring harness retaining clips (1) from the transmission mounting bolts.
83. Remove the engine wiring harness from the engine.
84. Remove the transmission close out plug.
85. Mark the torque converter to flexplate/flywheel orientation to ensure proper realignment.
86. Remove the torque converter bolt close out plug from the engine block by pulling outward.
87. Repeat the following steps for all 3 torque converter bolts: Rotate the crankshaft center bolt in the engine rotational direction, clockwise using the J 42098 , in order to align the torque converter bolts with the access hole in the engine block. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Remove and discard the torque converter bolt. The bolt is self locking and is NOT reusable.
88. Remove the 3 lower transmission mounting bolts (1-2).
89. Remove the 3 upper transmission mounting bolts (2-3).
90. Pull the transmission free from the engine dowels (1).
91. With the aid of an assistant remove the transmission from the engine.
92. Remove the J 39456 from the engine. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Install the J 39456 to the engine lift brackets and attach to the engine lift devise. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. With the aid of an assistant complete the following: Position the transmission to the engine. Align the engine dowels (1) with the transmission.
3. Install the transmission mounting bolts (2-3). Tighten: Tighten the M12 transmission mounting bolts to 75 N.m (55 lb ft).
4. Install the 3 lower transmission mounting bolts (1-2). Tighten: Tighten the M10 transmission mounting bolt (1) to 50 N.m (44 lb ft). Tighten the M12 transmission mounting bolts (2) to 75 N.m (55 lb ft).
5. Align the torque converter to flexplate/flywheel orientation marks made during the removal procedure.
6. Repeat the following steps for all 3 torque converter bolts: Rotate the crankshaft center bolt in the engine rotational direction, clockwise using the J 42098 , in order to align the torque converter bolt holes in the flexplate/flywheel with the access hole in the engine block. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . To aid in alignment of the torque converter to the flexplate/flywheel. Install all 3 NEW torque converter bolts before fully tightening. Tighten: Tighten the torque converter bolts to 63 N.m (46 lb ft).
7. Press the torque converter bolt close out plug into the engine block.
8. Install the transmission close out plug.
9. Position the engine wiring harness to the engine.
10. Connect the engine wiring harness retaining clips (1) to the transmission mounting bolts.
11. Connect the engine wiring harness retainers.
12. Connect the engine wiring harness connectors to the electrical components.
13. Install the left engine mount bracket and retaining bolts. Tighten: Tighten the engine mount bracket bolts to 60 N.m (44 lb ft).
14. Install the right engine mount bracket and retaining bolts. Tighten: Tighten the engine mount bracket bolts to 60 N.m (44 lb ft).
15. Install the 2 bolts (2-4) securing the engine wiring harness ground leads (1-3) to the left cylinder head. Tighten: Tighten the engine ground lead to left cylinder head bolt (2) to 30 N.m (22 lb ft). Tighten the coil ground to left cylinder head bolt (4) to 50 N.m (37 lb ft).
16. Install the following components if previously removed: «Afterboil Coolant Pump Replacement»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Battery Negative Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Negative Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Battery Positive Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Positive Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Coolant Heater Cord Replacement (LA3, LY9, K05)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) or «Coolant Heater Cord Replacement (LA3, LY9, KA3)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Coolant Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Generator Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Starter Motor Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Surge Tank Hose/Pipe Replacement - Outlet (LHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) or «Surge Tank Hose/Pipe Replacement - Outlet (RHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Throttle Body Heater Hose/Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling
17. Alternate between the following in order to install the engine/transmission assembly into the engine compartment: Carefully lower the engine/transmission assembly using the engine lift devise. Position a lift jack under the rear of the transmission in order to aid in aligning the engine mount brackets with the engine mounts.
18. Remove the J 39456 from the engine lift brackets. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
19. Install the transmission support to the vehicle.
20. Install the outer transmission support mounting bolts. Do not tighten at this time
21. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
22. Install the inner transmission support mounting bolts. Tighten: Tighten the transmission support mounting bolts to 60 N.m (44 lb ft).
23. Install the transmission mount nuts. Tighten: Tighten the transmission mount nuts to 60 N.m (44 lb ft).
24. Remove the mechanics wire (2) securing front propeller shaft (1) to the shift control lever (3).
25. Install the propeller shaft coupler (1) to the transmission flange. Refer to «Propeller Shaft Replacement (Automatic Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (Manual Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (CTS-V)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) in Driveline/Axle.
26. Place the transmission in the park position by rotating the shift shaft fully counter clockwise.
27. Connect the shift linkage to the transmission.
28. Install the transmission manual shift shaft nut. Tighten: Tighten the transmission manual shift shaft nut to 9 N.m (80 lb in).
29. Install the left engine mount upper retaining nut. Tighten: Tighten the engine mount nut to 80 N.m (59 lb ft).
30. Install the right engine mount upper retaining nut. Tighten: Tighten the engine mount nut to 80 N.m (59 lb ft).
31. Install the transmission fluid cooler pipes. Refer to «Transmission Fluid Cooler Hose/Pipe Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/automatic-trans/#automatic-transmission-5l40-e-introduction-service-replacement) in Automatic Transmission-5L40-E.
32. Install the oil filter adapter. Refer to «Oil Filter Adapter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
33. Secure the ABS wiring harness retainers (2) to the engine frame.
34. If equipped, connect the variable effort steering electrical connector (1) to the power steering gear pigtail.
35. Secure the ABS wiring harness retainers to the following: The lower control arms The electric cooling fan
36. Connect the ABS wiring harness electrical connectors to the left and right wheel speed sensors.
37. Connect the EBCM electrical connector (1) to the EBCM (3).
38. Rotate the EBCM connector tab (2) down into the locked position.
39. Install the EBCM connector position assurance retainer (4) to the EBCM electrical connector (1).
40. If equipped, connect the electrical connector to the brake fluid pressure sensor.
41. Install the catalytic converter hanger bracket. Refer to «Catalytic Converter Hanger Bracket Replacement»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
42. Install the left and right catalytic converters. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) or and «Catalytic Converter Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-right-la3) in Engine Exhaust.
43. Install the exhaust system. Refer to «Exhaust System Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-system-replacement-la3-ly9) in Engine Exhaust.
44. Lower the vehicle.
45. Position the A/C compressor to the accessory mounting bracket.
46. Install the A/C compressor mounting bolts. Tighten: Tighten the A/C compressor mounting bolts to 20 N.m (15 lb ft).
47. Connect the electrical connector to the A/C compressor.
48. Install the remote power steering fluid reservoir mounting bolts (1, 3). Tighten: Tighten the remote power steering fluid reservoir to intake plenum mounting bolts (1) to 9 N.m (80 lb in). Tighten the remote power steering fluid reservoir to cylinder head mounting bolt (3) to 25 N.m (18 lb ft).
49. Connect the following to the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
50. Connect the vacuum brake booster hose to the vacuum source.
51. Position the power steering pump to the accessory mounting bracket.
52. Install the power steering pump mounting bolts. Tighten: Tighten the power steering pump mounting bolts in sequence to 35 N.m (26 lb ft).
53. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
54. Install the power steering pressure hose retainer and nut to the A/C compressor stud. Tighten: Tighten the power steering hose retaining nut to 8 N.m (71 lb in).
55. Connect the retainer (1) securing the engine wiring harness to the A/C pressure hose.
56. Install the power steering return hose retainer and nut to the A/C compressor stud. Tighten: Tighten the power steering hose retaining nut to 8 N.m (71 lb in).
57. Connect the electrical connector (1) to the A/C refrigerant pressure switch (2).
58. Connect the 2 engine wiring harness connectors to the left body rail connectors.
59. Position the J 38185 to the clamp in order to connect the surge tank outlet hose to the surge tank. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
60. Position the J 38185 to the clamp (1) in order to connect the inlet heater hose to the heater core. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
61. Position the J 38185 to the clamp (1) in order to connect the outlet heater hose to the afterboil coolant pump (2). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
62. Insert the chassis hose/pipes into the retainer (4) located at the ECM bracket.
63. Close the retainer (4).
64. Connect the EVAP quick connect fitting (3). Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
65. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) in order to connect the following quick connect fittings to the fuel rail: The feed hose/pipe (2) The return hose/pipe (1)
66. Position the J 38185 to the clamp (1) in order to connect the coolant bypass inlet hose to the afterboil coolant pump pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
67. Position the J 38185 to the clamp (2) in order to connect the coolant bypass outlet hose to the coolant inlet pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
68. Position the J 38185 to the clamps in order to connect the surge tank inlet hose to the following: The radiator The throttle body assembly
69. Install the outlet radiator hose. Refer to «Radiator Hose Replacement - Outlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
70. Install the inlet radiator hose. Refer to «Radiator Hose Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
71. Fill the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
72. Connect the engine wiring harness connector (1) to the coolant bypass solenoid.
73. Install the bolt securing the engine wiring harness ground lead to the right body rail. Tighten: Tighten the engine wiring harness ground lead bolt to 9 N.m (80 lb in).
74. Connect the engine wiring harness connector at the right shock tower.
75. Install the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
76. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
77. Carefully connect the transmission control module electrical connector (1) to the transmission control module.
78. Lock the transmission control module electrical connector securely to the transmission control module by pushing the retainer (2) toward the electrical connector (1) until fully seated.
79. Install the nut (1) securing the battery positive cable (2) to the underhood fuse block. Tighten: Tighten the battery positive cable to underhood fuse block nut to 15 N.m (11 lb ft).
80. Connect the battery positive cable to the battery. Tighten: Tighten the battery cable to 17 N.m (13 lb ft).
81. Connect the engine wiring harness electrical connector to the underhood fuse block.
82. Install the underhood fuse block cover to the underhood fuse block.
83. Install the bolt (1) securing the battery negative cable to the side rail. Tighten: Tighten the battery negative cable to side rail bolt to 36 N.m (27 lb ft).
84. Connect the body harness connector (3) to the battery negative cable.
85. Connect the battery negative cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
86. Position the front air inlet panel to the battery tray and cowl.
87. Install the fasteners securing the front air inlet panel to the battery tray and cowl. Tighten: Tighten the front air inlet panel assembly fasteners to 6 N.m (53 lb in).
88. Install the wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
89. Install the hood. Refer to «Hood Replacement»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
90. Fill the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Engine Final Test and Inspection

Complete the following procedure after the engine is installed in the vehicle

1. With the ignition OFF or disconnected, crank the engine several times. Listen for any unusual noises or evidence that any parts are binding.
2. Start the engine and listen for abnormal conditions.
3. Check the vehicle oil pressure gage or light and confirm that the engine has acceptable oil pressure.
4. Run the engine at approximately 1000 RPM until the engine reaches normal operating temperature.
5. While the engine continues to idle raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
6. Inspect for oil, coolant and exhaust leaks while the engine is idling.
7. Lower the vehicle.
8. Perform the idle learn procedure. Refer to «Idle Learn Procedure»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__idle-learn-procedure) in Engine Controls-2.6L and 3.2L.
9. Perform a final inspection for the proper engine oil and coolant levels.
10. Road test the vehicle.

Engine Replacement (M35)

The following procedure requires the removal of the engine and transmission as an assembly.

Tools Required

1. J 38185 Hose Clamp Pliers. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 39456 Universal Engine Tilter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove the hood. Refer to «Hood Replacement»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
2. Remove the wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
3. Remove the fasteners securing the front air inlet panel to the battery tray and cowl.
4. Remove the front air inlet panel from the vehicle.
5. Disconnect the battery negative cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
6. Remove the bolt (1) securing the battery negative cable to the side rail.
7. Disconnect the body harness connector (3) from the battery negative cable and secure to the engine.
8. Depress the tabs in order to remove the underhood fuse block cover from the underhood fuse block.
9. Remove the nut (1) securing the battery positive cable (2) to the underhood fuse block.
10. Disconnect the battery positive cable from the battery and secure to the engine.
11. Disconnect the engine wiring harness electrical connector from the underhood fuse block and secure to the engine.
12. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
13. Remove the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
14. Disconnect the engine wiring harness connector at the right shock tower and secure to the engine.
15. Disconnect the engine wiring harness connector (1) from the coolant bypass solenoid.
16. Remove the bolt securing the engine wiring harness ground lead to the right body rail.
17. Drain the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
18. Position the J 38185 to the clamps in order to remove the surge tank inlet hose from the following: The radiator The throttle body assembly
19. Remove the inlet radiator hose. Refer to «Radiator Hose Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
20. Remove the outlet radiator hose. Refer to «Radiator Hose Replacement - Outlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
21. Position the J 38185 to the clamp (2) in order to remove the coolant bypass outlet hose from the coolant inlet pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
22. Position the J 38185 to the clamp (1) in order to remove the coolant bypass inlet hose from the afterboil coolant pump pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
23. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief Procedure»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__fuel-pressure-relief-procedure) in order to disconnect the following quick connect fittings from the fuel rail
24. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) . The return hose/pipe (1) The feed hose/pipe (2) Plug the open outlet ports to prevent fuel loss and contamination.
25. Disconnect the evaporative emission (EVAP) quick connect fitting (3). Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
26. Open the retainer (4) located at the engine control module (ECM) bracket in order to remove the chassis hose/pipes.
27. Position the J 38185 to the clamp (1) in order to remove the outlet heater hose from the afterboil coolant pump (2). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
28. Position the J 38185 to the clamp (1) in order to remove the inlet heater hose from the heater core. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
29. Position the J 38185 to the clamp in order to remove the surge tank outlet hose from the surge tank and secure to the engine. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
30. Disconnect the electrical connector (1) from the Air Conditioning (A/C) refrigerant pressure sensor (2).
31. Disconnect the 2 engine wiring harness connectors from the left body rail connectors.
32. Remove the power steering return hose nut and retainer from the A/C compressor stud.
33. Disconnect the retainer (1) securing the engine wiring harness to the A/C pressure hose and secure to the engine.
34. Remove the power steering pressure hose nut and retainer from the A/C compressor stud.
35. Remove the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
36. Remove the power steering pump mounting bolts (1,2,and 3) ONLY.
37. Remove the power steering pump from the accessory mounting bracket, and position aside.
38. Disconnect the following from the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
39. Disconnect the vacuum brake booster hose from the vacuum source.
40. Remove the remote power steering fluid reservoir mounting bolts (1,3) ONLY, and position aside.
41. Disconnect the electrical connector from the A/C compressor.
42. Remove the A/C compressor mounting bolts ONLY, and position aside.
43. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
44. Remove the exhaust system. Refer to «Exhaust System Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-system-replacement-la3-ly9) in Engine Exhaust.
45. Remove the left and right catalytic converters. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) and «Catalytic Converter Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-right-la3) in Engine Exhaust.
46. Remove the catalytic converter hanger bracket. Refer to «Catalytic Converter Hanger Bracket Replacement»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
47. Remove the Electronic Brake Control Module (EBCM) connector position assurance retainer (4) from the EBCM electrical connector (1).
48. Rotate the EBCM connector tab (2) up into the unlocked position.
49. Disconnect the EBCM electrical connector (1) from the EBCM (3).
50. If equipped, disconnect the electrical connector from the brake fluid pressure sensor.
51. Disconnect the Antilock Brake System (ABS) wiring harness electrical connectors from the left and right wheel speed sensors.
52. Remove the ABS wiring harness retainers from the following: The lower control arms The electric cooling fan
53. Remove the ABS wiring harness retainers (2) from the engine frame.
54. If equipped, disconnect the variable effort steering electrical connector (1) from the power steering gear pigtail.
55. Drain the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
56. Remove the oil filter adapter. Refer to «Oil Filter Adapter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
57. Remove the right engine mount upper retaining nut.
58. Remove the left engine mount upper retaining nut.
59. Remove the clutch hydraulic hose retaining clip (1) from the clutch slave cylinder.
60. Pull the clutch hydraulic hose (2) from the clutch slave cylinder. It is not necessary to plug the lower hose end or slave cylinder fitting as they are equipped with check valves. Only minimal fluid loss may be experienced.
61. Disconnect the propeller shaft coupler (1) from the transmission flange ONLY and secure to the shift reaction arm using mechanics wire. Refer to «Propeller Shaft Replacement (Automatic Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (Manual Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (CTS-V)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) in Driveline/Axle.
62. Support the rear of the transmission using a suitable screw jack.
63. Remove the transmission support. Refer to «Transmission Support Replacement»(/cadillac/cts/i-2002-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
64. Carefully lower the transmission only enough to access the shift control pins.
65. Remove the shift control pin retaining clips (1).
66. Remove the retaining pin (5) from the transmission and disconnect the shift reaction arm (4).
67. Remove the retaining pin (3) from the transmission and disconnect the shift control arm (2).
68. Install the transmission support to the vehicle.
69. Install the outer transmission support mounting bolts. Do not tighten.
70. Lower the screw jack fully.
71. Remove the screw jack from under the transmission.
72. Lower the vehicle.
73. Using a lift jack support the rear of the transmission.
74. Remove the outer transmission support mounting bolts.
75. Remove the transmission support from the vehicle.
76. Install the J 39456 to the engine lift brackets and attach to an engine lift devise. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
77. Alternate between the following in order to remove the engine/transmission assembly from the engine compartment: Carefully raise the engine/transmission assembly using the engine lift devise. Lower the lift jack supporting the rear of the transmission enough to clear the vehicles tunnel.
78. Lower the engine/transmission assembly to the floor.
79. Remove the following components from the engine if necessary: «Afterboil Coolant Pump Replacement»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Battery Negative Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Negative Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Battery Positive Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Positive Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Coolant Heater Cord Replacement (LA3, LY9, K05)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Coolant Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Generator Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Starter Motor Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Surge Tank Hose/Pipe Replacement - Outlet (LHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) or «Surge Tank Hose/Pipe Replacement - Outlet (RHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Throttle Body Heater Hose/Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling
80. Remove the 2 bolts (2-4) securing the engine wiring harness ground leads (1-3) to the left cylinder head.
81. Remove the bolt securing the engine wiring harness retainer to the oil pan.
82. Remove the right engine mount retaining bolts and bracket.
83. Remove the left engine mount retaining bolts and bracket.
84. Disconnect the engine wiring harness retainers.
85. Disconnect the engine wiring harness connectors from the electrical components.
86. Disconnect the engine wiring harness retaining clips (1) from the transmission mounting bolts.
87. Remove the engine wiring harness from the engine.
88. Remove the transmission mounting bolts (1,2 and 4).
89. Remove the remaining transmission mounting bolts (2-4).
90. With the aid of an assistant remove the transmission from the engine.
91. Remove the J 39456 from the engine. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Install the J 39456 to the engine lift brackets and attach to the engine lift devise. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. With the aid of an assistant complete the following: Place the transmission into gear. Position the transmission to the engine. Rotate the output flange in order to align the transmission input shaft with the pressure plate. Align the engine dowels (1) with the transmission.
3. Install the transmission mounting bolts (2-4). Tighten: Tighten the M12 transmission mounting bolts (2,3) to 75 N.m (55 lb ft). Tighten the M10 transmission mounting bolts (4) to 50 N.m (37 lb ft).
4. Install the remaining transmission mounting bolts (1,2 and 4). Tighten: Tighten the M12 transmission mounting bolts to 75 N.m (55 lb ft).
5. Position the engine wiring harness to the engine.
6. Connect the engine wiring harness retaining clips (1) to the transmission mounting bolts.
7. Connect the engine wiring harness retainers.
8. Connect the engine wiring harness connectors to the electrical components.
9. Install the left engine mount bracket and retaining bolts. Tighten: Tighten the engine mount bracket bolts to 60 N.m (44 lb ft).
10. Install the right engine mount bracket and retaining bolts. Tighten: Tighten the engine mount bracket bolts to 60N.m (44 lb ft).
11. Install the bolt securing the engine wiring harness retainer to the oil pan. Tighten: Tighten the engine wiring harness retainer to oil pan bolt to 50 N.m (37 lb ft).
12. Install the 2 bolts (2-4) securing the engine wiring harness ground leads (1-3) to the left cylinder head. Tighten: Tighten the engine ground lead to left cylinder head bolt (2) to 30 N.m (22 lb ft). Tighten the coil ground to left cylinder head bolt (4) to 50 N.m (37 lb ft).
13. Install the following components if previously removed: «Afterboil Coolant Pump Replacement»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Battery Negative Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Negative Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Battery Positive Cable Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) or «Battery Positive Cable Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Coolant Heater Cord Replacement (LA3, LY9, K05)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Coolant Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Generator Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Starter Motor Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical «Surge Tank Hose/Pipe Replacement - Outlet (LHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) or «Surge Tank Hose/Pipe Replacement - Outlet (RHD)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling «Throttle Body Heater Hose/Pipe Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling
14. Alternate between the following in order to install the engine/transmission assembly into the engine compartment: Carefully lower the engine/transmission assembly using the engine lift devise. Position a lift jack under the rear of the transmission in order to aid in aligning the engine mount brackets with the engine mounts.
15. Remove the J 39456 from the engine lift brackets. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
16. Install the transmission support to the vehicle.
17. Install the outer transmission support mounting bolts. Do not tighten.
18. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
19. Position a screw jack under the rear of the transmission.
20. Remove the outer transmission support mounting bolts.
21. Lower the screw jack only enough to install the shift control pins.
22. Connect the shift control rod (2) to the transmission and install the retaining pin (3).
23. Connect the shift reaction arm (4) to the transmission and install the retaining pin (5).
24. Install the shift control pin retaining clips (1).
25. Raise the screw jack fully into position.
26. Install the transmission support. Refer to «Transmission Support Replacement»(/cadillac/cts/i-2002-2007/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
27. Remove the screw jack from under the vehicle.
28. Remove the mechanics wire securing the front propeller shaft to the shift reaction arm.
29. Install the propeller shaft coupler (1) to the transmission flange. Refer to «Propeller Shaft Replacement (Automatic Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (Manual Transmission)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) or «Propeller Shaft Replacement (CTS-V)»(/cadillac/cts/i-2002-2007/remont/driveshaft-universal-joints/#propeller-shaft) in Driveline/Axle.
30. Install the clutch hydraulic hose retaining clip (1) to the clutch slave cylinder.
31. Install the clutch hydraulic hose to the vehicle.
32. Align the clutch hydraulic hose locating tab with the notch in the slave cylinder hose fitting.
33. Push the clutch hydraulic hose (2) into the clutch slave cylinder until a "click" is heard.
34. Tug gently on the clutch hydraulic hose (2) to ensure proper retention to the clutch slave cylinder.
35. Install the left engine mount upper retaining nut. Tighten: Tighten the engine mount nut to 80 N.m (59 lb ft).
36. Install the right engine mount upper retaining nut. Tighten: Tighten the engine mount nut to 80 N.m (59 lb ft).
37. Install the oil filter adapter. Refer to «Oil Filter Adapter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
38. Secure the ABS wiring harness retainers (2) to the engine frame.
39. If equipped, connect the variable effort steering electrical connector (1) to the power steering gear pigtail.
40. Secure the ABS wiring harness retainers to the following: The lower control arms The electric cooling fan
41. Connect the ABS wiring harness electrical connectors to the left and right wheel speed sensors.
42. Connect the EBCM electrical connector (1) to the EBCM (3).
43. Rotate the EBCM connector tab (2) down into the locked position.
44. Install the EBCM connector position assurance retainer (4) to the EBCM electrical connector (1).
45. If equipped, connect the electrical connector to the brake fluid pressure sensor.
46. Install the catalytic converter hanger bracket. Refer to «Catalytic Converter Hanger Bracket Replacement»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
47. Install the left and right catalytic converters. Refer to «Catalytic Converter Replacement - Left (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-left-la3) and «Catalytic Converter Replacement - Right (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__catalytic-converter-replacement-right-la3) in Engine Exhaust.
48. Install the exhaust system. Refer to «Exhaust System Replacement (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/exhaust/#engine-exhaust-system__exhaust-system-replacement-la3-ly9) in Engine Exhaust.
49. Lower the vehicle.
50. Position the A/C compressor to the accessory mounting bracket.
51. Install the A/C compressor mounting bolts. Tighten: Tighten the A/C compressor mounting bolts to 20 N.m (15 lb ft).
52. Connect the electrical connector to the A/C compressor.
53. Install the remote power steering fluid reservoir mounting bolts (1,3). Tighten: Tighten the remote power steering fluid reservoir to intake plenum mounting bolts (1) to 9 N.m (80 lb in). Tighten the remote power steering fluid reservoir to cylinder head mounting bolt (3) to 25 N.m (18 lb ft).
54. Connect the following to the remote power steering fluid reservoir (1): The vacuum brake booster hose The wiring harness (2)
55. Connect the vacuum brake booster hose to the vacuum source.
56. Position the power steering pump to the accessory mounting bracket.
57. Install the power steering pump mounting bolts. Tighten: Tighten the power steering pump mounting bolts in sequence to 35 N.m (26 lb ft).
58. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
59. Install the power steering pressure hose retainer and nut to the A/C compressor stud. Tighten: Tighten the power steering hose retaining nut to 8 N.m (71 lb in).
60. Connect the retainer (1) securing the engine wiring harness to the A/C pressure hose.
61. Install the power steering return hose retainer and nut to the A/C compressor stud. Tighten: Tighten the power steering hose retaining nut to 8 N.m (71 lb in).
62. Connect the electrical connector (1) to the A/C refrigerant pressure switch (2).
63. Connect the 2 engine wiring harness connectors to the left body rail connectors.
64. Position the J 38185 to the clamp in order to connect the surge tank outlet hose to the surge tank. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
65. Position the J 38185 to the clamp (1) in order to connect the inlet heater hose to the heater core. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
66. Position the J 38185 to the clamp (1) in order to connect the outlet heater hose to the afterboil coolant pump (2). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
67. Insert the chassis hose/pipes into the retainer (4) located at the ECM bracket.
68. Close the retainer (4).
69. Connect the EVAP quick connect fitting (3). Refer to «Quick Connect Fitting(s) Service (Plastic Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) .
70. Refer to «Quick Connect Fitting(s) Service (Metal Collar)»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__quick-connect-fittings-service-metal-collar) in order to connect the following quick connect fittings to the fuel rail: The feed hose/pipe (2) The return hose/pipe (1)
71. Position the J 38185 to the clamp (1) in order to connect the coolant bypass inlet hose to the afterboil coolant pump pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
72. Position the J 38185 to the clamp (2) in order to connect the coolant bypass outlet hose to the coolant inlet pipe. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
73. Position the J 38185 to the clamps in order to connect the surge tank inlet hose to the following: The radiator The throttle body assembly
74. Install the outlet radiator hose. Refer to «Radiator Hose Replacement - Outlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
75. Install the inlet radiator hose. Refer to «Radiator Hose Replacement - Inlet (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
76. Fill the cooling system. Refer to «Draining and Filling Cooling System (LA3, LY9)»(/cadillac/cts/i-2002-2007/remont/cooling-fan/#engine-cooling-system) in Engine Cooling.
77. Connect the engine wiring harness connector (1) to the coolant bypass solenoid.
78. Install the bolt securing the engine wiring harness ground lead to the right body rail. Tighten: Tighten the engine wiring harness ground lead bolt to 9 N.m (80 lb in).
79. Connect the engine wiring harness connector at the right shock tower.
80. Install the intake air resonator. Refer to «Intake Air Resonator Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
81. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction) in Engine Controls-2.6L and 3.2L.
82. Install the nut (1) securing the battery positive cable (2) to the underhood fuse block. Tighten: Tighten the battery positive cable to underhood fuse block nut to 15 N.m (11 lb ft).
83. Connect the battery positive cable to the battery. Tighten: Tighten the battery cable to 17 N.m (13 lb ft).
84. Connect the engine wiring harness electrical connector to the underhood fuse block.
85. Install the underhood fuse block cover to the underhood fuse block.
86. Install the bolt (1) securing the battery negative cable to the side rail. Tighten: Tighten the battery negative cable to side rail bolt to 36 N.m (27 lb ft).
87. Connect the body harness connector (3) to the battery negative cable.
88. Connect the battery negative cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/cadillac/cts/i-2002-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
89. Position the front air inlet panel to the battery tray and cowl.
90. Install the fasteners securing the front air inlet panel to the battery tray and cowl. Tighten: Tighten the front air inlet panel assembly fasteners to 6 N.m (53 lb in).
91. Install the wiper motor module. Refer to «Wiper Motor Module Replacement (LHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Wiper Motor Module Replacement (RHD)»(/cadillac/cts/i-2002-2007/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
92. Install the hood. Refer to «Hood Replacement»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-front-end) in Body Front End.
93. Fill the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Complete the following procedure after the engine is installed in the vehicle

1. With the ignition OFF or disconnected, crank the engine several times. Listen for any unusual noises or evidence that any parts are binding.
2. Start the engine and listen for abnormal conditions.
3. Check the vehicle oil pressure gauge or light and confirm that the engine has acceptable oil pressure.
4. Run the engine at approximately 1000 RPM until the engine reaches normal operating temperature.
5. While the engine continues to idle raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
6. Inspect for oil, coolant and exhaust leaks while the engine is idling.
7. Lower the vehicle.
8. Perform the idle learn procedure. Refer to «Idle Learn Procedure»(/cadillac/cts/i-2002-2007/remont/testing-diagnostics/#engine-controls-26l-32l-introduction__idle-learn-procedure) in Engine Controls-2.6L and 3.2L.
9. Perform a final inspection for the proper engine oil and coolant levels.
10. Road test the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/i-2002-2007/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
2. Position the oil drain pan under the oil pan drain plug.
3. Remove the oil pan drain plug and allow the engine oil to drain.
4. Clean and inspect the oil pan drain plug, replace if necessary.
5. Clean and inspect the oil pan drain plug sealing surface on the oil pan, repair or replace the oil pan if necessary.
6. Remove the oil filter cartridge housing drain plug and allow the engine oil to drain into the drain pan.
7. Remove the plastic cap from the oil filter cartridge housing.
8. Remove the oil filter cartridge from the plastic cap.
9. Clean and inspect the following, replace if necessary: The oil filter cartridge plastic cap The oil filter cap O-ring seal

1. Install the oil filter cartridge housing drain plug. Tighten: Tighten the oil filter cartridge housing drain plug to 10 N.m (89 lb in).
2. Install the NEW oil filter cartridge into the plastic cap.
3. Lightly coat the O-ring seal (2) around the plastic cap with clean engine oil.
4. Install the plastic cap to the oil filter cartridge housing. Tighten: Tighten the oil filter cartridge plastic cap to 25 N.m (18 lb ft).
5. Install the oil pan drain plug. Tighten: Tighten the oil pan drain plug to 10 N.m (89 lb in).
6. Wipe the oil pan drain plug and surrounding area with a clean, dry cloth.
7. Lower the vehicle.
8. Fill the engine with the proper type and amount of engine oil. Refer to «Fluid and Lubricant Recommendations»(/cadillac/cts/i-2002-2007/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) and «Capacities - Approximate Fluid»(/cadillac/cts/i-2002-2007/remont/lubrication-system/#maintenance-and-lubrication__capacities-approximate-fluid) in Maintenance and Lubrication.
9. Start the engine and inspect the oil pressure gage for appropriate pressure build up.
10. Inspect the oil filter cartridge housing and the oil pan drain plug areas for leaks.
11. Shut the engine off.
12. Check the engine oil level and adjust if necessary.

Draining Fluids and Oil Filter Removal

1. Remove the oil drain plug.
2. Drain the engine oil.
3. Remove the oil filter cap and the filter element.
4. Remove the oil filter housing.

Crankshaft Balancer Removal

1. Remove the crankshaft balancer bolts.
2. Remove the crankshaft balancer.

Engine Flywheel Removal

1. Remove the flywheel bolts. Counterhold the crankshaft if necessary to remove the bolts.
2. Discard the flywheel bolts.
3. Remove the flywheel.

J 43276 Clutch Pilot Bearing Remover. See Special Tools and Equipment .

1. Remove the clutch pilot bearing using the J 43276 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Install the J 43276-1 tool body into the clutch pilot bearing. Using a wrench secure the J 43276-1 tool body. Insert the J 43276-2 forcing screw into the J 43276-1 tool body. Rotate the J 43276-2 forcing screw clockwise into the J 43276-1 tool body until the clutch pilot bearing is completely removed from the crankshaft. Rotate the J 43276-2 forcing screw counterclockwise to remove the J 43276-2 forcing screw from the J 43276-1 tool body. Remove the J 43276-1 tool body from the clutch pilot bearing.
2. Discard the clutch pilot bearing.

Oil Level Indicator and Tube Removal

1. Remove the oil level indicator.
2. Remove oil level indicator bolt.
3. Remove the engine lift bracket.
4. Pull the oil level indicator tube upward to remove.

Oil Filter Adapter Removal

1. Remove the oil filter adapter bolts.
2. Remove the oil filter adapter plug.
3. Remove the O-ring from the oil filter adapter plug.
4. Remove the female screw located inside the oil filter adapter.
5. Remove the oil filter adapter.
6. Remove and discard the O-ring from the adapter.

Intake Plenum Removal

1. Remove the throttle body bolts.
2. Remove the throttle body and O-rings.
3. Remove the ECM nuts.
4. Remove the ECM.
5. Remove the ECM bracket bolts.
6. Remove the ECM bracket.
7. Remove the vacuum line clamps from the crankcase vent tube adapter.
8. Remove the vacuum lines from the crankcase vent tube adapter.
9. Remove the crankcase ventilation tube adapter bolts.
10. Remove the crankcase ventilation tube adapter.
11. Remove the intake plenum bolt caps.
12. Remove the intake plenum bolts.
13. Remove the intake plenum and O-ring seals.

Intake Manifold Removal

1. Remove the intake manifold bolts (1).
2. Remove the intake manifold (2).
3. Remove the seals (3).

Intake Manifold Flange Removal

1. Remove the intake manifold flange bolts (1).
2. Remove the intake manifold flange (2).

Water Crossover Removal

1. Remove the water crossover bolts (1).
2. Remove the water crossover upper seals (2).
3. Remove the water crossover (3).
4. Remove the water crossover lower seals (2).

Exhaust Manifold Removal - Left

1. Remove the left side exhaust manifold nuts.
2. Remove the left side exhaust manifold.
3. Remove the left side exhaust manifold gasket.

Exhaust Manifold Removal - Right

1. Remove the right side exhaust manifold nuts.
2. Remove the right side exhaust manifold.
3. Remove the right side exhaust manifold gasket.

Crankcase Vent Housing Removal

1. Remove the hoses from the crankcase vent housing.
2. Remove the crankcase vent housing bolts.
3. Remove the crankcase vent housing.

Drive Belt Tensioner Removal

1. Remove the drive belt tensioner bolts.
2. Remove the drive belt tensioner from the engine.

Timing Belt Cover Removal - Front

1. Remove the water pump pulley bolts.
2. Remove the water pump pulley.
3. Remove the front timing belt cover bolts.
4. Remove the front timing belt cover.

Camshaft Cover Removal - Left

Tools Required

J 43301 Coil Pack Puller. See Special Tools and Equipment .

1. Remove the oil filler cap.
2. Remove the coil cassette bolts.
3. Remove the coil cassette using the J 43301 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Remove the spark plugs.
5. Remove the camshaft cover bolts (1).
6. Remove the camshaft cover (2).
7. Remove the camshaft cover seals (3).

J 43301 Coil Pack Puller. See Special Tools and Equipment .

1. Remove the coil cassette bolts.
2. Remove the coil cassette using the J 43301 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the spark plugs.
4. Remove the camshaft cover bolts (1).
5. Remove the camshaft cover (2).
6. Remove the camshaft cover seals (3).

Timing Belt Removal

Tools Required

1. J 42069 Timing Belt Alignment Kit. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42098 Crank Hub Torx Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Rotate the crankshaft using the J 42098 until #1 cylinder is at 60 degrees Before Top Dead Center (BTDC). See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Install the crankshaft locking tool J 42069-10.
3. Rotate the crankshaft in the engine rotational direction (clockwise) using the J 42098 until the #1 cylinder is at TDC and tighten lever arm to the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. Install the J 42069-1 and the J 42069-2 to the camshaft gears. If the J 42069-1 or the J 42069-2 do not fit it may be necessary to loosen the relevant timing belt idler pulley and turn the eccentric until the tool can be inserted.
5. Loosen the upper and lower idler pulleys.
6. Remove the timing belt.
7. Remove the lower idler pulley.

J 42069 Timing Belt Alignment Kit. See Special Tools and Equipment .

1. Install the J 42069-1 between camshaft drive sprocket 1 and 2 to hold the camshaft drive sprockets in place while loosening the bolt.
2. Install the J 42069-2 between camshaft drive sprocket 3 and 4 to hold the camshaft drive sprockets in place while loosening the bolt.
3. Loosen the camshaft drive sprocket bolts.
4. Remove the camshaft locking tools and carefully rotate the camshafts to release the lifter pressure from the camshafts, if applicable.
5. Remove the camshaft drive sprocket bolts.
6. Remove the camshaft drive sprocket washers.
7. Remove the camshaft drive sprockets.

Timing Belt Tensioner Pulley Removal

1. Remove the timing belt tensioner bracket bolts.
2. Remove the timing belt tensioner bracket.

Water Pump Removal

1. Remove the water pump bolts.
2. Remove the water pump and seal.

Timing Belt Cover Removal - Rear

1. Remove the timing belt rear cover bolts.
2. Unclip the knock sensor wires.
3. Remove the timing belt rear cover.
4. Remove the left side knock sensor bolt.
5. Remove the left side knock sensor.
6. Remove the right side knock sensor bolt.
7. Remove the right side knock sensor.

Thermostat Housing Removal

1. Remove the coolant pipe by twisting.
2. Remove the O-ring seals from the pipe.
3. Discard the O-rings.
4. Remove the thermostat housing bolts.
5. Remove the thermostat housing and thermostat.
6. Remove the thermostat from the thermostat housing.
7. Remove the O-ring seal from the thermostat housing and discard.

Camshaft Removal - Left

1. Remove the camshaft bearing cap bolts using loosening sequence.
2. Remove the camshaft bearing caps. Note the code marks on the bearing caps (R1, R2, R3, etc.).
3. Remove the camshaft with the seal attached.
4. Remove the camshaft seals.

Camshaft Removal - Right

1. Remove the camshaft bearing cap bolts using the loosening sequence.
2. Remove the camshaft bearing caps. Note the code marks on the bearing caps (L1, L2, L3, etc.).
3. Remove the camshaft with the seal attached.
4. Remove the camshaft seals.

Valve Lifter Removal

1. Remove the valve lifters using a magnet.
2. Place the valve lifters in a rack sequentially so they can be reinstalled in their original order if the valve lifters are to be reused.

Cylinder Head Removal - Left

1. Remove the left cylinder head bolts (1 thru 8) in the sequence shown.
2. Discard the cylinder head bolts.
3. Remove the left cylinder heads.
4. Remove the left cylinder head gaskets.

Cylinder Head Removal - Right

1. Remove the right cylinder head bolts (1 thru 8) in the sequence shown.
2. Discard the cylinder head bolts.
3. Remove the right cylinder heads.
4. Remove the right cylinder head gaskets.

Oil Cooler Removal

1. Remove engine oil cooler pipe fittings from oil cooler.
2. Remove engine oil cooler pipe seals from oil cooler.
3. Remove the engine oil cooler pipe fittings from the engine block.
4. Remove the engine oil cooler pipes from the engine.
5. Remove the engine oil cooler inlet nut (1).
6. Remove the engine oil cooler outlet nut (2).
7. Remove the engine oil cooler cover bolts (3).
8. Remove the engine oil cooler.
9. Remove the engine oil cooler inlet/outlet O-ring seals (4).

Oil Pan Removal

1. Remove the oil pan bolts.
2. Remove the oil pan.

Oil Pump Pipe and Screen Assembly Removal

1. Remove the oil intake pipe bolts (1).
2. Remove the oil intake pipe (2).
3. Remove the oil intake pipe O-ring (3).

Oil Baffle Removal

1. Remove the oil baffle bolts.
2. Remove the oil baffle.

Oil Pump Removal

Tools Required

1. J 42065 Crank Hub Holding Tool. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42098 Crank Hub Torx Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Mount the J 42065 to prevent movement of the crankshaft. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Use the J 42098 to remove the crankshaft drive gear bolt. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Remove the crankshaft drive gear.
4. Remove the oil pump collar.
5. Remove the oil pressure sensor.
6. Using a suitable tool, insert a self-drilling sheet metal screw into the steel ring of the crankshaft front oil seal.
7. Use pliers to pull out the crankshaft front oil seal.
8. Remove the oil pump bolts.
9. Remove the oil pump and gasket.

Piston, Connecting Rod, and Bearing Removal

1. Rotate the crankshaft until the rod bearing cap bolts are accessible.
2. Remove the rod bearing cap bolts.
3. Remove the rod bearing cap.
4. Remove the lower rod bearing.
5. Use a block of wood or use a soft material to drive each piston out of the block.
6. Remove the upper rod bearing.

Crankshaft Rear Oil Seal Removal

1. Center punch the steel ring crankshaft rear oil seal.
2. Carefully drill a small, shallow, pilot hole into the steel ring of the crankshaft rear oil seal.
3. Screw in a self-tapping screw.
4. Use pliers to pull the crankshaft rear oil seal out.

Crankshaft and Bearings Removal

1. Remove the crankshaft bearing bridge bolts.
2. Remove the main bearing cap bolts.
3. Remove the crankshaft bearing bridge.
4. Remove the first main bearing cap.
5. Remove the first main bearing cap lower insert.
6. Remove the second main bearing cap.
7. Remove the second main bearing cap lower insert.
8. Remove the third main bearing cap.
9. Remove the third main bearing cap lower insert.
10. Perform the following steps to remove the fourth main bearing cap: Insert a bolt into the main bearing cap oil pan threaded hole or pry the crankshaft and drain the bearing cap from the block using a pry bar at each end of the flywheel. Use a pry bar to remove the cap from the block. Remove the fourth main bearing cap. Remove the fourth main bearing cap lower insert.
11. Carefully remove the crankshaft.
12. Remove the main bearing upper inserts from the block.
13. Remove the crankshaft position sensor bolt.
14. Remove the crankshaft position sensor.
15. Remove the crankshaft reluctor ring bolts.
16. Remove the crankshaft reluctor ring.

Engine Block Disassemble (without K05 and KA3)

1. Remove the coolant jacket plugs.
2. Remove the coolant jacket support plug.
3. Remove the blow-by plate bolts.
4. Remove the blow-by plate.

Engine Block Disassemble (with K05)

1. Remove the coolant jacket plugs.
2. Remove the block heater and discard the O-ring.
3. Remove the blow-by plate bolts.
4. Remove the blow-by plate.

Engine Block Disassemble (with KA3)

1. Remove the coolant jacket plugs.
2. Remove the block heater.
3. Remove the blow-by plate bolts.
4. Remove the blow-by plate.

J 8087 Cylinder Bore Gauge. See Special Tools and Equipment .

1. Clean the following components: Use solvent to clean the engine block. Clean the gasket surfaces. Clean the coolant passages. Clean the oil passages.
2. Inspect the following for cracks: Inspect the cylinder walls for cracks. Replace the engine block if any cracks are evident. Inspect the coolant jackets for cracks. Replace the engine block if any cracks are evident. Inspect the main bearing insert cavities for cracks. Replace the engine block if any cracks are evident.
3. Inspect for the following in the cylinder walls: Inspect for gouges in the cylinder walls deeper than 0.05 mm (0.002 in). Bore the cylinder if gouges are deeper than 0.05 mm (0.002 in). Inspect for pitting in the cylinder walls deeper than 0.05 mm (0.002 in). Bore the cylinder if pitting is deeper than 0.05 mm (0.002 in). Inspect for scores is the cylinder walls deeper than 0.05 mm (0.002 in). Bore the cylinder if scores are deeper than 0.05 mm (0.002 in).
4. Use the J 8087 to measure the cylinder bore at the directed points (1, 2) for the following conditions: Measure for wear. Measure for taper. Measure for runout. Measure for ridging.
5. The cylinders with less than 0.05 mm (0.002 in) of wear and/or taper may be reconditioned.
6. Recondition the cylinders with less 0.05 mm (0.002 in) with a hone and fitted with the appropriate size select fit piston (providing the cylinder was not fitted with the largest size select fit piston).

Boring Procedure

1. Measure all pistons with a micrometer to determine the cylinder bore diameter.
2. Before you use any type of boring bar, use a fine file and clean the top of the cylinder block removing any dirt or burrs. If you do not check the cylinder block, the boring bar may be improperly positioned, tilted, and the cylinder bore could be bored at an incorrect angle.
3. Carefully follow the instructions furnished by the manufacturer regarding use of the equipment.
4. When you bore the cylinders, make sure all the crankshaft bearing caps are in place. Tighten the crankshaft bearing caps to the proper torque in order to avoid distortion of the cylinder bores during final assembly.
5. When you take the final cut with a boring bar, leave 0.03 mm (0.001 in) on the cylinder bore diameter for the finish honing and fit of the piston.

Honing Procedure

1. When honing the cylinders, follow the manufacturer's recommendations for equipment use, cleaning, and lubrication. Use only clean, sharp stones of the proper grade for the amount of material you remove. Dull, dirty stones cut unevenly and generate excessive heat. Do not hone to final clearance with a coarse or medium-grade stone. Leave sufficient metal so that all stone marks may be removed with fine-grade stones. Perform final honing with a fine-grade stone, honing the cylinder to the proper clearance.
2. During the honing operation, thoroughly clean the cylinder bore. Repeatedly check the cylinder bore for fit with the selected piston. All measurements of the piston or the cylinder bore should be made with the components at normal room temperature.
3. When honing a cylinder for fit to an oversize piston, first perform the preliminary honing with a 100 grit stone.
4. Perform final cylinder honing with a 240 grit stone and obtain a 45 degree cross hatch pattern. A 240 grit stone is preferred for final honing. If a 240 grit stone is not available, a 220 grit stone may be used as a substitute.
5. When honing to eliminate taper in the cylinder, make full strokes the complete length of the bore. Repeatedly check the measurement at the top, the middle, and the bottom of the bore.
6. The finish marks should be clean but not sharp. The finish marks should also be free from imbedded particles and torn or folded metal.
7. By measuring the selected piston at the sizing point and by adding the average of the clearance specification, you can determine the final cylinder honing dimension required.
8. When finished, the reconditioned cylinder bores should have less than or meet the specified out-of-round and taper requirements.
9. After final honing and before the piston is checked for fit, clean the cylinder bores with hot water and detergent. Scrub the bores with a stiff bristle brush and rinse the bores thoroughly with hot water. Do not allow any abrasive material to remain in the cylinder bores. This abrasive material may cause premature wear of the new piston rings and the cylinder bores. Abrasive material will also contaminate the engine oil and may cause premature wear of the bearings. After washing the cylinder bore, dry the bore with a clean rag.
10. Perform final measurements of the piston and the cylinder bore.
11. Permanently mark the top of the piston for the specific cylinder to which it has been fitted.
12. Apply clean engine oil to each cylinder bore in order to prevent rusting.

J 8087 Cylinder Bore Gage. See Special Tools and Equipment .

1. Clean the crankshaft of the following elements: Oil Sludge Carbon
2. Inspect the crankshaft oil passages for obstructions.
3. Inspect the crankshaft keyway for nicks or wear.
4. Inspect the crankshaft threads.
5. Inspect the crankshaft bearing journals and the crankshaft thrust surfaces for the following conditions: Cracks Chips Gouges Roughness Grooves Overheating, discoloration
6. Inspect the corresponding crankshaft bearings for embedded foreign material and determine the source.
7. Inspect the crankshaft bearings for uneven side-to-side wear. This may indicate a bent crankshaft or a tapered bearing journal.
8. Inspect the outer surfaces of the crankshaft bearings for the following conditions: Wear - surface wear indicates either movement of the insert or high spots in the surrounding material, spot wear. Overheating or discoloration Looseness or rotation indicated by flattened tangs and wear grooves
9. Inspect the thrust surfaces of the main thrust bearing for the following conditions: Wear Grooving, grooves are caused by irregularities of the crankshaft thrust surface.
10. Using the J 8087 inspect the connecting rod bearing bores or crankshaft main bearing bores using the following procedure: Tighten the bearing cap to specification. Measure the bearing bore using J 8087 for taper and out-of-round. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . No taper or out-of-round should exist.

Crankshaft Main Bearing Selection

The crankshaft main bearing caps are numbered 1, 2, 3 from the front of the engine. The rear bearing cap is not numbered and contains the thrust bearings. The number 2 and 3 main bearings shells do not have oil grooves on the cap sides.

There is a 0 or 1 stamped on the cylinder block oil pan mating flange near the end of each main bearing cap. This is the determining number. The determining number corresponds to each crankshaft main bearing size and color that will be installed.

1. The cylinder block main bearing journal diameter for the determining number of 0 is 72.0000-72.0065 mm. (2.83 in).
2. The cylinder block main bearing journal diameter for the determining number of 1 is 72.0065-72.0130 mm. (2.83-2.84 in).

The Crankshaft Main Bearing Size specification shows the color of the bearing that must be used for the respective determining number stamp.

To select the number stamp for the respective main bearing journal on the oil pan mating flange

1. Measure the crankshaft main bearing journal.
2. Refer to «Crankshaft Main Bearing Selection Specifications»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__crankshaft-main-bearing-selection-specifications) .
3. Select the correct determining number column.
4. Select the measured main bearing journal diameter range.
5. Select the block side color.
6. Select the cap side color.

Cleaning

1. Clean the engine flywheel in solvent.
2. Dry the engine flywheel with compressed air.

Inspection

1. Inspect the engine flywheel for the following conditions: Stress cracks around the engine flywheel-to-torque converter mounting bolt hole locations (1) and/or engine flywheel-to-crankshaft (2, 4) IMPORTANT: Do not attempt to repair the ring gear. Install a new engine flywheel. Cracks next to the ring gear (3) Damaged or missing ring gear teeth (5)
2. Replace the engine flywheel as necessary.

Piston and Connecting Rod Disassemble

1. Remove the piston rings. Use a suitable tool to expand the rings. Piston rings must not be reused.
2. Remove the piston pin retaining clips.
3. Remove the piston pin.

Piston, Connecting Rod, and Bearings Cleaning and Inspection

1. Use cleaning solvent to clean the connecting rod.
2. Use compressed air to dry the connecting rod.
3. Use cleaning solvent to clean the pistons if reusing the pistons.
4. Use cleaning solvent to clean the piston pins if reusing the piston pins. New pistons contain new piston pins.
5. Use a groove cleaner to clean the piston ring.
6. Inspect the connecting rod for the following conditions: Twists Replace if damage is evident. Nicks Replace if damage is evident. Cracks Replace if damage is evident.
7. Inspect the pistons for the following conditions, replace the piston if any of the below is evident: Cracked skirts Cracked piston pin bosses Cracked ring groove lands Nicks that may cause binding Burrs that may cause binding Warped ring groove lands Worn ring groove lands Eroded areas on top of the piston Worn piston pin bores
8. Use a micrometer and use an inside micrometer to measure the piston pin bore-to-piston pin clearance.
9. The maximum clearance is 0.003 - 0.008 mm (0.0001 - 0.0003 in).
10. Replace the piston and replace the pin if the pin bore-to-piston pin clearance is beyond the proper specification.
11. Measure the piston ring end gap clearance in the bore. Perform only after the cylinder has been honed.
12. The 1st and the 2nd compression ring gap specification is 0.30 - 0.50 mm (0.0118 - 0.0196 in).
13. Replace the piston rings if the end gap clearance is not within the proper specification.
14. The oil control ring end gap specification is 0.40 - 1.40 mm (0.0157 - 0.0551 in).
15. Replace the piston rings if the end gap clearance is not within the proper specification.
16. Measure the piston ring groove clearance.
17. The 1st and the 2nd compression ring groove clearance specification is 0.02 - 0.04 mm (0.0008 - 0.0015 in).
18. Replace the piston if the ring groove clearance is not within the proper specification.
19. The oil control ring groove clearance specification is 0.01 - 0.03 mm (0.0004 - 0.0012 in).
20. Replace the piston if the ring groove clearance is not within the proper specification.

Piston and Connecting Rod Assemble

1. Perform the following steps to assemble the piston to the connecting rod: The arrow on top of the piston must point toward the front of the engine. The bumps on the connecting rod must face towards the rear of the engine. Install the piston pin. Install the piston pin retaining clips to the piston.
2. Perform the following steps to install the piston rings: Align the number one compression ring gap at 6 o'clock (1). Align the number two compression ring gap at 12 o'clock (2). Align the upper oil control ring gap at 1 o'clock (3). Align the oil control ring spacer gap at the 9 o'clock (4). Align the lower oil control ring gap at the 5 o'clock (5).

J 7872 Magnetic Base Dial Indicator. See Special Tools and Equipment .

1. Clean the camshaft in solvent.
2. Dry the camshaft with compressed air.
3. Inspect the camshaft for the following conditions: Worn, scored, or damaged bearing journals Worn camshaft lobes Damaged sprocket pin
4. Measure the camshaft journals with a micrometer 27.939-27.960 mm (1.099-1.101 in).
5. Measure for a bent camshaft or excessive camshaft runout using J 7872 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Mount the camshaft in V-blocks between centers. Use the J 7872 in order to measure for a bent camshaft. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Radial runout 0.06 mm (0.0023 in).
6. Replace the camshaft if runout exceeds specifications.
7. Inspect the camshaft bearings and bearing cap surfaces for the following: Wear Scoring Overheating from lack of lubrication
8. Inspect the bearing clearances with gaging plastic. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) .
9. Inspect the camshaft for excessive end play 0.038-0.051 mm (0.001-0.002 in) 0.04-0.144 mm (0.002-0.006 in).
10. The camshaft bearing surfaces are machined into the cylinder head and are not serviceable.

Camshaft Cover Cleaning and Inspection

1. Clean the camshaft cover in solvent, removing all sludge and varnish.
2. Clean the old sealer from the sealing surfaces.
3. Inspect for the following conditions: Chipped or cracked sealing flanges Cracked or worn areas of the cover

Cylinder Head Disassemble

Tools Required

1. J 8062 Valve Spring Compressor. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 41774 Valve Spring Compressor Adapter

1. Use J 8062 and J 41774 to compress the valve springs.
2. Remove the valve stem keys (2).
3. Remove the cap (3) from the valve stem.
4. Remove the valve spring (4).
5. Remove the valve seal (5).
6. Remove the valve spring seat (6) from the cylinder head.
7. Remove the valves (7). Place the valves sequentially in a rack so they can be installed in their original order, if being reused.

Cylinder Head Cleaning and Inspection

Tools Required

1. J 8089 Carbon Removal Brush. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 8001 Dial Indicator Set
3. J 9666 Valve Spring Tester. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. J 28410 Gasket Remover. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Remove all gasket material from the sealing surfaces using the J 28410 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. Use the J 8089 to clean the carbon from the combustion chambers. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. Using a valve guide bushing brush and solvent, clean all the valve guide bushings.
4. Using a soft brush and solvent, clean the cylinder head: Intake and exhaust parts Intake and exhaust valve seats
5. Inspect the cylinder head for flatness. Using a straight edge and a feeler gage, measure the surfaces contacting the cylinder block and manifolds for warpage. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) . If the warpage is greater than the maximum, replace the cylinder head.
6. Inspect for the following in the cylinder head: Cracks in the exhaust ports Cracks in the combustion chambers Cracks to the water jackets Cracks in the valve seats Valve seats for looseness
7. Use a buffing wheel to clean the valve stems and the valve heads.
8. Inspect the valves for the following: Burnt or damaged areas (1) Undersized valve margin (2) Bent stems (3) Scoring or other damage to the stem (4) Worn key groove (5) Worn stem tip (6)
9. Inspect the valve contact surface for the following conditions: Undersized margin (1) Pitted surface (2) Burnt or eroded areas (3) Acceptable edge, margin, (4)
10. Valves with excessive damage must be replaced.
11. Perform the following steps to inspect the valve stem, 1 to valve guide, 2 clearance: Clamp the J 8001 on the exhaust port side of the cylinder head. Locate the indicator so the movement of the valve stem crosswise to cylinder head will cause a direct movement of the indicator stem. Drop the valve head 10 mm (0.39 in) off the valve seat. Using light pressure to move the stem of the valve side to side to obtain a clearance reading. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) .
12. Measure the valve stem in 3 locations if the valve clearance is out of specifications. Replace the valve if the valve stem is out of specification. Ream the valve guide and use an oversized valve if the valve stem is within specification.
13. Inspect the valve springs for broken coils or coil ends.
14. Perform the following steps to inspect the valve for squareness: Place the valve spring on a level surface next to a square. Rotate the valve spring. Replace the valve spring if the valve spring is more than 1.58 mm (0.062 in) out of square.
15. Using calipers, measure the free length of the valve spring. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) .
16. Use the J 9666 in order to measure the valve spring force. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) .

Cylinder Head Assemble

Tools Required

1. J 8062 Valve Spring Compressor. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 41774 Valve Spring Compressor Adapter
3. J 41775 Valve Seal Installer

1. Coat the valve stem with engine oil.
2. Insert the valve stem into the guide.
3. Install the valve spring seat.
4. Use the J 41775 to insert the valve seal (1).
5. Install the valve spring.
6. Install the cap on the valve stem.
7. Use the J 8062 and the J 41774 to compress the valve spring.
8. Perform the following steps to install the valve stem keys: Use a light grease to hold the keys in place. Remove the J 8062 and. J 41774. Seat the valve stem keys in the upper groove of the valve stem.
9. Install the lifter.
10. Repeat the above sequence for the remaining valves.

Oil Pump Disassemble

1. Remove the oil pressure regulator valve plug, seal, valve and spring.
2. Remove the oil pressure relief valve plug, seal, spring and valve.
3. Remove the oil pump cover bolts and cover.
4. Remove the oil pump drive and driven rotor.

Oil Pump Cleaning and Inspection

1. Clean parts in solvent.
2. Dry the parts with compressed air.
3. Use a feeler gage to measure the clearance between the driven rotor and the pump body. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) . If clearance is greater than maximum, replace the oil pump.
4. Use a feeler gage to measure the clearance between both rotor tips. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) . If clearance is greater than maximum, replace the oil pump.
5. Use a feeler gage and a straight edge to measure the oil pump inner and outer gear to housing clearance. Refer to «Engine Mechanical Specifications (LY9)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-ly9) or «Engine Mechanical Specifications (LA3)»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l__engine-mechanical-specifications-la3) . If clearance is greater than maximum, replace the oil pump.
6. Inspect the oil pressure regulating valve, oil pressure relief valve and springs for wear or damage.
7. Inspect oil pump pressure regulating valve and oil pressure relief valve for free movement in their bores.

Oil Pump Assemble

1. Install the oil pump drive and driven rotor.
2. Install the oil pump cover and bolts. Tighten: Tighten the oil pump cover bolts to 8 N.m (71 lb in).
3. Install the oil pressure relief valve, spring, seal and plug.
4. Install the oil pressure regulator spring, valve and plug.

Timing Belt Cover Cleaning and Inspection - Front

1. Clean the timing belt cover in solvent.
2. Inspect for the following conditions: Cracked bolt holes Cracked or torn gasket Cracked or worn areas of the cover
3. Replace the timing belt cover as necessary.

Oil Pan Cleaning and Inspection

1. Clean the oil pan in solvent.
2. Remove all the sludge and the oil deposits.
3. Clean the oil pan mating surface.
4. Inspect for the following conditions: Stripped or damaged thread holes Chipped or cracked sealing flanges
5. Replace the oil pan as necessary.

Intake Plenum Manifold Disassemble

1. Remove the intake plenum turning valve bolts.
2. Remove the intake plenum turning solenoid bolts.
3. Remove the intake plenum turning valve, intake plenum tuning solenoid and O-ring.
4. Remove the vacuum brake booster fitting from the intake plenum.

Intake Plenum Manifold Cleaning and Inspection

1. Clean the intake plenum in solvent, removing all sludge and varnish.
2. Clean the intake plenum sealing surfaces.
3. Inspect for the following conditions: Chipped or cracked sealing flanges Stripped or damaged thread holes
4. Replace the intake plenum as necessary.

Intake Plenum Manifold Assemble

1. Install the vacuum brake booster fitting from the intake plenum. Tighten: Tighten the vacuum brake booster fitting to 25 N.m (18 lb ft).
2. Install the intake plenum tuning valve, intake plenum tuning solenoid and O-ring.
3. Install the intake plenum tuning valve bolts. Tighten: Tighten the intake plenum tuning valve bolts to 8 N.m (71 lb in).
4. Install the intake plenum tuning solenoid bolts. Tighten: Tighten the intake plenum tuning solenoid bolts to 8 N.m (71 lb in).

Intake Manifold Disassemble

1. Remove the wiring harness and the connectors from the fuel injectors.
2. Remove the fuel rail attaching bolt near the fuel supply-return lines.
3. Remove the fuel rail attaching bolts from the intake manifold.
4. Remove the fuel rail and fuel injectors.
5. Remove and discard the O-rings from the fuel injectors.

Intake Manifold Cleaning and Inspection

1. Clean the intake manifold in solvent.
2. Inspect the intake manifold for the following: Threaded holes for damage Sealing mating surfaces for damage and nicks
3. Replace the intake manifold as necessary.

Intake Manifold Assemble

1. Lubricate the new injector O-rings with clean engine oil.
2. Install the new injector O-rings on the injectors.
3. Install the fuel rail with the fuel injectors to the intake manifold.
4. Install the fuel rail attaching bolts to the intake manifold. Tighten: Tighten the fuel rail attaching bolts to 8 N.m (71 lb in).
5. Install the fuel rail attaching bolt near the fuel supply-return lines. Tighten: Tighten the fuel rail attaching bolts to 8 N.m (71 lb in).
6. Install the wiring harness and connectors to the fuel injectors.

Exhaust Manifold Cleaning and Inspection

1. Clean the exhaust manifold in solvent.
2. Dry the exhaust manifold with compressed air.
3. Inspect the exhaust manifold-to-cylinder head gasket surface for excessive scratches or gouging.
4. Inspect for a loose or damaged heat shield.
5. Use a straight edge and a feeler gage, and measure the exhaust manifolds for warpage. A warped exhaust manifold may cause a leak and may effect the vehicle performance. Exhaust manifolds that are warped must be replaced.

Water Pump Cleaning and Inspection

1. Clean the water pump mating surface.
2. Clean the water pump.
3. Inspect the water pump shaft for looseness.
4. Inspect the water pump vanes for damage.
5. Inspect the water pump mating surfaces for nicks.
6. Repair or replace the water pump as necessary.

Oil Cooler Cleaning and Inspection

1. Clean the oil cooler in solvent.
2. Backflush the heat exchanger and oil cooler lines with solvent.
3. Dry the oil cooler components with compressed air.
4. Remove all sealant from the oil cooler cover.
5. Inspect the oil cooler for the following: Damage to the heat exchanger fins Restrictions in the heat exchanger fins Damage to the threads of the heat exchanger Check the oil cooler cover surface flatness with a straight edge and a feeler gage
6. Inspect the oil cooler lines for kinks and damage.
7. Inspect the oil cooler line banjo-fittings for damage and scoring.

Engine Block Assemble (without KA3 and K05)

1. Install the blow-by plate.
2. Install the blow-by plate bolts. Tighten: Tighten the blow-by plate bolts to 8 N.m (71 lb in).
3. Install the O-ring onto the coolant jacket support plug.
4. Install the coolant jacket support plug. Tighten: Tighten the coolant jacket support plug to 65 N.m (48 lb ft).
5. Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) to the threads of the coolant jacket plugs.
6. Install the coolant jacket plugs. Tighten: Tighten the coolant jacket plugs to 65 N.m (48 lb ft).

Engine Block Assemble (with KA3)

1. Install the blow-by plate.
2. Install the blow-by plate bolts. Tighten: Tighten the blow-by plate bolts to 8 N.m (71 lb in).
3. Install the O-ring onto the block heater.
4. Install the block heater. Tighten: Tighten the block heater to 60 N.m (44 lb ft).
5. Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) to the threads of the coolant jacket plugs.
6. Install the coolant jacket plugs. Tighten: Tighten the coolant jacket plugs to 65 N.m (48 lb ft).

Engine Block Assemble (with K05)

1. Install the blow-by plate.
2. Install the blow-by plate bolts. Tighten: Tighten the blow-by plate bolts to 8 N.m (71 lb in).
3. Install the O-ring onto the block heater.
4. Install the block heater. Tighten: Tighten the block heater to 60 N.m (44 lb ft).
5. Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) to the threads of the coolant jacket plugs.
6. Install the coolant jacket plugs. Tighten: Tighten the coolant jacket plugs to 65 N.m (48 lb ft).

General purpose thread repair kits. These kits are available commercially.

1. Determine the size, the pitch, and the depth of the damaged thread. If necessary, adjust the stop collars on the cutting tool and tap to the required depth.
2. Drill out the damaged threads. Clean out any chips.
3. Lubricate the tap with light engine oil. Tap the hole. Clean the threads.
4. Thread the thread insert onto the mandrel of the installer. Engage the tang of the insert onto the end of the mandrel.
5. Lubricate the insert with light engine oil (except when installing in aluminum) and install the insert.
6. If the tang of the insert does not break off when backing out the installer, break the tang off with a drift.

Service Prior to Assembly

1. Dirt or debris will cause premature wear of the rebuilt engine. Clean all components.
2. Use the proper tools to measure components when checking for excessive wear. Components that are not within the manufacturer's specifications must be replaced or repaired.
3. When components are reinstalled into an engine, return the components to their original position, location and direction.
4. During assembly, lubricate all moving parts with clean engine oil or engine assembly lubricant (unless otherwise specified). This will provide initial lubrication when the engine is first started.

J 45299 Engine Pre-Luber. See Special Tools and Equipment .

1. Locate the front bottom of the engine at the oil pressure sensor (2).
2. Install the M14 x 1.5 adapter P/N 219433.
3. Install the flexible hose to the adapter and open the valve.
4. Pump the handle on the J 45299 in order to flow a minimum of 0.95-1.89 liters (1-2 quarts) of engine oil. Observe the flow of engine oil through the flexible hose and into the engine assembly.
5. Close the valve and remove the flexible hose and adapter from the engine.
6. Install the oil pressure sensor on the engine. Tighten: Tighten the oil pressure sensor to 40 N.m (30 lb ft).
7. Top off the engine oil to the proper level.

J 36660-A Torque Angle Meter. See Special Tools and Equipment .

1. Install the crankshaft bearings to engine block.
2. Install the crankshaft sensor ring.
3. Install the NEW crankshaft sensor ring bolts. Tighten: Tighten the crankshaft sensor ring bolts to 15 N.m (11 lb ft).
4. Install the crankshaft position sensor.
5. Install the crankshaft position sensor bolt. Tighten: Tighten the crankshaft position sensor bolt to 8 N.m (71 lb in).
6. Install the crankshaft to the engine block.
7. Apply Engine Oil Supplement (EOS), GM P/N 1052367, (Canadian P/N 992869), to the bearing surfaces.
8. Install the main bearings to the main bearing caps.
9. Apply RTV sealer, GM P/N 12346286 (Canadian P/N 10953472), or equivalent, in the groove on the side of the fourth main bearing cap.
10. Install the main bearing caps to the engine block. Place the main bearing caps in numerical order.
11. Install the crankshaft bearing bridge.
12. Use new main bearing cap bolts or damage may occur when the final tightening is performed.
13. Install the main bearing cap bolts loosely.
14. Back off the crankshaft bearing bridge adjusting sleeves until the bushings do not contact the engine block when the bridge is fully seated. Tighten: Tighten the main bearing cap bolts to 50 N.m (37 lb ft).
15. Use the J 36660-A to rotate the main bearing cap bolts in the following sequence: Tighten: The first pass rotate the main bearing cap bolts 60 degrees. The second and the final pass rotate the main bearing cap bolts an additional 15 degrees.
16. Apply thread adhesive, GM P/N 12345493, (Canadian P/N 10953488), or equivalent to the crankshaft bearing bridge adjusting sleeves. Tighten: Tighten the crankshaft adjusting sleeves to 20 N.m (15 lb ft).
17. Install the crankshaft bearing bridge bolts (1). Tighten: Tighten the crankshaft bearing bridge bolts to 20 N.m (15 lb ft).

J 42067 Rear Main Seal Installer. See Special Tools and Equipment .

1. Coat the lip of the crankshaft rear oil seal with clean engine oil.
2. Use the J 42067 to install the crankshaft rear oil seal. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Piston, Connecting Rod, and Bearing Installation

Tools Required

1. J 8037 Piston Ring Compressor. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 36660-A Torque Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. J 41742 Connecting Rod Guide Pin

1. Install the J 41742 into the connecting rod bolt hole which will allow the guide pin to clear the crankshaft bearing bridge. Only one J 41742 is required to properly align the connecting rod with crankshaft.
2. Install the upper rod bearing to the rod.
3. Coat the following components with Engine Oil Supplement (EOS), GM P/N 1052367 (Canadian P/N 992869): Coat the piston. Coat the piston rings. Coat the cylinder bore. Coat the bearing surfaces.
4. Perform the following steps to install the piston: Position the piston with the arrow on the piston head facing toward the front of the engine. Use the J 8037 to compress the piston rings. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Place the piston in the cylinder (2). Lightly tap the piston into the cylinder bore while an assistant guides the connecting rod onto the crankshaft.
5. Remove the J 41742.
6. Perform the following steps to install the connecting rod caps with bearings to the connecting rod: Install with the bumps on the connecting rod and the cap facing toward the rear of the engine. Coat the bearing surface with Engine Oil Supplement (EOS), GM P/N 1052367 (Canadian P/N 992869).
7. Use new connecting rod cap bolts.
8. Install the connecting rod cap bolts. Tighten: Tighten the connecting rod bearing cap bolts to 35 N.m (26 lb ft).
9. Use the J 36660-A to rotate the main bearing cap bolts in the following sequence: Tighten: The first pass rotate the connecting rod bearing cap bolts 45 degrees. The second pass rotate the connecting rod bearing cap bolts 15 degrees.
10. Repeat steps for the remaining pistons.

Oil Pump Installation

Tools Required

1. J 35268-A Camshaft/Front Main Seal Installer. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 36660-A Torque Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
3. J 42065 Crank Hub Holding Tool. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
4. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Coat only the pump side of the new oil pump gasket with a thin, even coating of GM P/N 1052942 (Canadian P/N 10953466) or equivalent.
2. Install the oil pump gasket.
3. Install the oil pump and align with the guide pins (2).
4. Coat the oil pump bolts with GM P/N 12345382, (Canadian P/N 10953489) or equivalent.
5. Install the oil pump bolts. Tighten in the sequence shown. Tighten: Tighten the oil pump bolts to 12 N.m (9 lb ft).
6. Install the oil pressure sender. Tighten: Tighten the oil pressure sender to 35 N.m (26 lb ft).
7. Install the oil pump collar.
8. Coat the lip of the front main oil seal with a small amount of clean engine oil, to aid in installation.
9. Install the front main oil seal.
10. Use the J 35268-A to tap the front main oil seal into place. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Ensure the front main oil seal if fully and evenly seated.
11. Install the crankshaft drive gear.
12. Install a new crankshaft drive gear bolt. Tighten: Use the J 42098 to tighten the crankshaft drive gear bolt, while counterholding the crankshaft drive gear with the J 42065 to 250 N.m (184 lb ft).
13. Use the J 36660-A to tighten the crankshaft drive gear bolt in the following sequence: Tighten: The first pass rotate the crankshaft drive gear bolt 45 degrees. The second and the final pass rotate the crankshaft drive gear bolt an additional 15 degrees.
14. Temporarily mount the generator and install the generator lower mounting bolt (3). Tighten: Tighten the generator lower mounting bolt (3) to 35 N.m (26 lb ft).
15. Re-tighten the oil pump bolts. Tighten in the sequence shown. Tighten: Tighten the oil pump bolts to 20 N.m (15 lb ft).
16. Remove the generator bolt and the generator.

Oil Baffle Installation

1. Install the oil pan baffle.
2. Install the oil pan baffle bolts. Tighten: Tighten the oil pan baffle bolts to 8 N.m (71 lb in).

Oil Pump Pipe and Screen Assembly Installation

1. Install the oil intake pipe O-ring.
2. Install the oil intake pipe.
3. Install the oil intake pipe bolts. Tighten: Tighten the oil intake pipe bolts to 8 N.m (71 lb in).
4. Apply thread adhesive GM P/N 12345382 (Canadian P/N 10953489) to the oil intake pipe brace bolts.
5. Install the oil intake pipe brace bolts. Tighten: Tighten the oil intake pipe brace bolts to 8 N.m (71 lb in).

Oil Pan Installation

1. Apply a 2 mm (0.08 in) bead of silicone sealing compound, GM P/N 1052942 (Canadian P/N 10953489) to the oil pan mating surface.
2. Position the oil pan to the engine block.
3. Apply thread adhesive GM P/N 12345382 (Canadian P/N 10953489) to the oil pan bolts.
4. Install the oil pan bolts. Tighten: Tighten the oil pan bolts to 15 N.m (11 lb ft).

Oil Cooler Installation

1. Install the engine oil cooler inlet/outlet O-ring seals.
2. Install the engine oil cooler.
3. Apply a 2 mm (0.08 in) bead of GM P/N 12378521 (Canadian P/N 88901148), or equivalent, in the groove around the engine oil cooler cover.
4. Apply thread adhesive GM P/N 12345382 (Canadian P/N 10953489) to the engine oil cooler cover bolts.
5. Install the engine oil cooler cover bolts and tighten using the tightening sequence. Tighten: Tighten the engine oil cooler cover bolts in sequence to 20 N.m (15 lb ft).
6. Install the engine oil cooler outlet nut.
7. Install the engine oil cooler inlet nut. Tighten: Tighten the engine oil cooler inlet and outlet nuts to 30 N.m (22 lb ft).
8. Install the engine oil cooler pipes to the engine.
9. Install the engine oil cooler pipe fittings to the engine block. Tighten: Tighten the engine oil cooler pipe fittings to 30 N.m (22 lb ft).
10. Install the engine oil cooler pipe seals to the engine oil cooler.
11. Install the engine oil cooler pipe fittings to the oil cooler. Tighten: Tighten the engine oil cooler pipe fittings to 30 N.m (22 lb ft).

J 36660-A Torque Angle Meter. See Special Tools and Equipment .

1. Install the new cylinder head gasket with the imprint toward the top and facing toward you.
2. Install the cylinder head to the engine block.
3. Install the new cylinder head bolts. Tighten: Tighten the cylinder head bolts to 25 N.m (18 lb ft) on the first pass. Tighten the cylinder head bolts to 90 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the cylinder head bolts to 90 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the cylinder head bolts to 90 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the cylinder head bolts to 15 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

J 36660-A Torque Angle Meter. See Special Tools and Equipment .

1. Install the new cylinder head gasket with the imprint toward the top and facing toward you.
2. Install the cylinder head to the engine block.
3. Install the new cylinder head bolts. Tighten: Tighten the cylinder head bolts to 25 N.m (18 lb ft) on the first pass. Tighten the cylinder head bolts 90 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the cylinder head bolts 90 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the cylinder head bolts 90 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Tighten the cylinder head bolts 15 degrees using the J 36660-A . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

Valve Lifter Installation

1. Lubricate the valve lifter with engine oil.
2. Install the valve lifters in their original position if not replaced.

J 35268-A Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

1. Choose the correct camshaft to be installed. Camshaft Identification 2.6L (LY9) The intake camshaft is stamped with the letter "F" next to bearing 1. The exhaust camshaft is stamped with the letter "N" next to bearing 1.
2. 3.2L (LA3) The intake camshaft is stamped with the letter "G" next to bearing 1. The exhaust camshaft is stamped with the letter "J" next to bearing 1.
3. Lubricate the camshaft bearing surfaces with GM P/N 1052367 (Canadian P/N 992869) or equivalent.
4. Apply engine assembly lubricant GM P/N 1052942 (Canadian P/N 992869) to the camshaft lobes.
5. Install the camshafts.
6. Apply a small amount of GM P/N 1052942 (Canadian P/N 10953466) or equivalent on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and cylinder head.
7. Install the camshaft bearing caps in their appropriate position.
8. Install the camshaft bearing cap bolts and tighten using tightening sequence. Tighten: Tighten the camshaft bearing cap bolts to 8 N.m (71 lb in).
9. Coat the lip of the camshaft seals with a small amount of clean engine oil to aid in installation.
10. Use the J 35268-A to tap the camshaft seals into place. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Ensure the camshaft seals are fully seated.

J 35268-A Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

1. Choose the correct camshaft to be installed. Camshaft Identification 2.6L (LY9) The intake camshaft is stamped with the letter "F" next to bearing 1. The exhaust camshaft is stamped with the letter "N" next to bearing 1. 3.2L (LA3) The intake camshaft is stamped with the letter "G" next to bearing 1. The exhaust camshaft is stamped with the letter "J" next to bearing 1.
2. Lubricate the camshaft bearing surfaces with GM P/N 1052367 (Canadian P/N 992869) or equivalent.
3. Apply engine assembly lubricant GM P/N 1052367 (Canadian P/N 992869) to the camshaft lobes.
4. Install the camshafts.
5. Apply a small amount of GM P/N 1052942 (Canadian P/N 10953466) or equivalent on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and cylinder head.
6. Install the camshaft bearing caps in their appropriate position.
7. Install the camshaft bearing cap bolts and tighten, using tightening sequence. Tighten: Tighten the camshaft bearing cap bolts to 8 N.m (71 lb in).
8. Coat the lip of the camshaft seals with a small amount of clean engine oil to aid in installation.
9. Use the J 35268-A to tap the camshaft seals into place. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Ensure the camshaft seals are fully seated.

Thermostat Housing Installation

1. Install a new O-ring seal.
2. Install the thermostat housing with the thermostat.
3. Apply sealant GM P/N 12346004, (Canadian P/N 10953480), to the thermostat housing bolts.
4. Install the thermostat housing bolts. Tighten: Tighten the thermostat housing bolts to 20 N.m (15 lb ft).
5. Apply engine coolant to new seals on coolant pipe.
6. Install O-rings on coolant pipe.
7. Install coolant pipe into the thermostat housing.

Oil Level Indicator and Tube Installation

1. Install the oil level indicator tube.
2. Install the engine lift bracket.
3. Apply thread adhesive GM P/N 12345493, (Canadian P/N 10953488), to the oil level indicator tube bolt.
4. Install the oil level indicator bolt. Ensure the bolt passes through the coolant pipe, engine lift bracket and oil indicator tube. Tighten: Tighten the oil level indicator tube bolt to 20 N.m (15 lb ft).
5. Install the oil level indicator.

Timing Belt Cover Installation - Rear

1. Install the right side knock sensor.
2. Install the right side knock sensor bolt. Tighten: Tighten the right side knock sensor bolt to 20 N.m (15 lb ft).
3. Install the left side knock sensor.
4. Install the left side knock sensor bolt. Tighten: Tighten the left side knock sensor bolt to 20 N.m (15 lb ft).
5. Install the timing belt rear cover.
6. Install the knock sensor wires.
7. Apply thread adhesive GM P/N 12345382, (Canadian P/N 10953489), to the timing belt rear cover bolts and threaded pin.
8. Install the timing belt rear cover bolts. Tighten: Tighten the timing belt rear cover bolts to 8 N.m (71 lb in).
9. Install the timing belt rear cover threaded pin. Tighten: Tighten the timing belt rear cover threaded pin to 10 N.m (89 lb in).

Water Pump Installation

1. Apply silicone GM P/N 12345579, (Canadian P/N 1974984), to the water pump seal.
2. Install the water pump seal.
3. Install the water pump.
4. Install the water pump bolts. Tighten: Tighten the water pump bolts to 25 N.m (18 lb ft).

Timing Belt Tensioner Pulley Installation

1. Install the timing belt tensioner bracket.
2. Install the timing belt tensioner bracket bolts. Tighten: Tighten the timing belt tensioner bracket bolts to 40 N.m (30 lb ft).

Camshaft Drive Sprocket Installation

Tools Required

1. J 36660-A Torque Angle Meter. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42069 Timing Belt Alignment Kit. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Install the camshaft drive sprockets. Ensure the camshaft pins are installed in the correct numbered slot on the drive sprockets.
2. Install the camshaft drive sprocket bolts with washers. Tighten: Use the relevant J 42069-1 or the J 42069-2 to hold the camshaft drive sprockets and the camshafts in place while tightening the camshaft drive sprocket bolts. Use the J 36660-A to tighten the camshaft drive sprocket bolts to 50 N.m (37 lb ft) on the first pass, 60 degrees on the second pass and 15 degrees on the third pass.

Timing Belt Installation

Tools Required

1. J 42069 Timing Belt Alignment Kit. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
2. J 42098 Crank Hub TORX® Socket. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .

1. Install the J 42069-1 and J 42069-2 to hold camshafts.
2. Slip the timing belt though the 3 and 4 camshaft simultaneously, ensuring the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
3. Route the timing belt through the upper idler pulley.
4. Slip the timing belt though the 1 and 2 camshaft gears simultaneously, ensuring the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
5. Route the timing belt through the timing belt tensioner.
6. Ensure the crankshaft is at TDC.
7. Install the timing belt on the crankshaft drive gear with the double dash mark on the belt aligned with the marks on the oil pump and on the belt drive gear.
8. Using the J 42098 rotate the crankshaft to 3° before TDC making sure the timing belt does not jump teeth. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
9. Install the lower idler pulley with the timing belt on it.
10. Install the lower idler pulley bolt. Tighten: Tighten the lower idler pulley bolt to 40 N.m (30 lb ft).
11. Turn the crankshaft back to TDC, using the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
12. Apply tension to the timing belt, at the upper idler pulley by turning the high point of the eccentric to approximately the 9 o'clock position. Tighten the idler pulley locking bolt, while holding the eccentric with the J 42069-40, until snug.
13. Rotate the tensioner eccentric counter clockwise to full stop, turn the eccentric back until the reference mark is (a) 1 mm (0.039 in) over the flange.
14. Tighten the timing belt tensioner until snug, the locking nut will be tightened to specifications after all final adjustments are made.
15. Inspect the alignment marks on the timing belt to ensure that they are aligned with the appropriate reference points on the camshaft gears, the rear timing belt cover and on the oil pump housing.
16. Rotate the crankshaft, with the J 42098 , in the clockwise direction 2 revolutions stopping at 60 degrees BTDC. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
17. Remove the J 42069-1 and J 42069-2.
18. Install the J 42069-10 to the crankshaft drive gear.
19. Turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump flange.
20. Secure the moveable lever of the tool to the water pump pulley flange.
21. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover.
22. Inspect the alignment of the reference mark on the crankshaft drive gear and oil pump housing.
23. Use the J 42069-20 to inspect the alignment of the camshaft gears 3 and 4.
24. Use the J 42069-20 to inspect the alignment of the camshaft gears 1 and 2.
25. If timing belt adjustment IS REQUIRED, refer to Timing Belt Timing Procedure.
26. If timing belt adjustment IS NOT REQUIRED, set the final timing belt tension: Loosen the timing belt eccentric locking nut. Turn the eccentric counter clockwise to full stop, then back until the reference mark is (a) 3-4 mm (0.118-0.158 in) above the mark on the flange. Tighten: Tighten the timing belt tensioner eccentric locking nut to 20 N.m (15 lb ft).
27. Hold the upper idler pulley eccentrics in place with the J 42069-40. Tighten: Tighten the upper idler pulley bolt to 40 N.m (30 lb ft).
28. Remove the J 42069-10 from the engine.
29. For final inspection rotate the engine in the clockwise direction two revolutions until reaching 60 degrees BTDC.
30. Install the J 42069-10 to the crankshaft drive gear.
31. Turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump flange.
32. Secure the moveable lever of the tool to the water pump pulley flange.
33. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover.
34. Inspect the alignment of the reference mark on the crankshaft drive gear and oil pump housing.
35. Use the J 42069-20 to inspect the alignment of the camshaft gears 3 and 4.
36. Use the J 42069-20 to inspect the alignment of the camshaft gears 1 and 2.
37. If the reference marks on the camshaft gears do not match exactly, timing belt adjustment IS REQUIRED. Refer to the Timing Belt Timing Procedure.
38. If the reference marks match exactly, further timing belt adjustment IS NOT necessary. Continue with reassembly of the engine.
39. Ensure all of the tools are removed from the engine.

1. Apply the J 42069-20 checking gage to camshaft gears 1 and 2.
2. Inspect the relationship of the marks on the camshaft gears to the marks on the J 42069-20 checking gage. They must match exactly, if not, timing belt adjustment is required.
3. Continue to the next applicable procedure.

1. Loosen the timing belt idler pulley for camshaft gears 1 and 2.
2. Use the J 42069-40 adjustment wrench to turn eccentric on the idler pulley COUNTERCLOCKWISE until the marks on the camshaft gears and on the J 42069-20 checking gage are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position. Tighten: Tighten the timing belt idler pulley bolt, while holding the eccentric in place with the J 42069-40 adjustment wrench to prevent movement, to 40 N.m (30 lb ft).
3. Remove the J 42069-10 crankshaft locking tool and the J 42069-20 checking gage.
4. Turn the crankshaft in the engine rotational direction 2 revolutions with the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Stop at 60 degrees BTDC.
5. Install the J 42069-10 crankshaft locking tool to the crankshaft drive gear with the knurled bolt.
6. Use the J 42098 to carefully turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Secure the moveable lever of the tool to the water pump pulley flange.
8. Install the J 42069-20 checking gage to camshaft gears 1 & 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J 42069-20 checking gage.
10. Repeat the procedure again if the marks do not align.
11. If camshaft gears 1 and 2 are properly aligned, set the final timing belt tensioner as outlined in Timing Belt Tensioner Adjustment at the end of this procedure.

1. Loosen the timing belt idler pulley for camshaft gears 1 and 2.
2. Slacken the timing belt by turning the eccentric on the idler pulley CLOCKWISE with the J 42069-40 adjustment wrench until the marks on the camshaft gears and the marks on the J 42069-20 checking gage are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position. Tighten: Tighten the timing belt idler pulley bolt, while holding the eccentric in place with the J 42069-40 adjustment wrench to prevent movement, to 40 N.m (30 lb ft).
3. Remove the J 42069-10 crankshaft locking tool and the J 42069-20 checking gage.
4. Turn the crankshaft in the engine rotational direction 2 revolutions with the J 42098 . See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) . Stop at 60 degrees BTDC.
5. Install the J 42069-10 crankshaft locking tool to the crankshaft drive gear with the knurled bolt.
6. Use the J 42098 to carefully turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Secure the moveable lever of the tool to the water pump pulley flange.
8. Install the J 42069-20 checking gage to camshaft gears 1 and 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J 42069-20 checking gage.
10. Repeat the procedure again if the marks do not align.
11. If camshaft gears 1 and 2 are properly aligned, set the final timing belt tensioner as outlined in Timing Belt Tensioner Adjustment at the end of this procedure.

1. With the J 42069-10 in place locking the crankshaft at TDC: Loosen the timing belt tensioner eccentric locking nut. Turn the eccentric counterclockwise to full stop, then back until the reference mark is 3-4 mm (0.118-0.157 in) ABOVE the reference mark on the flange. Tighten: Tighten the timing belt tensioner locking nut to 20 N.m (15 lb ft).
2. If the timing belt upper idler pulley bolts have not been previously torqued to specification: Tighten: Tighten the timing belt idler pulley bolts while holding the eccentric in place with the J 42069-40 adjusting wrench to prevent movement, to 40 N.m (30 lb ft).
3. Remove all checking tools.
4. As a final inspection, once again rotate the engine in the clockwise direction 2 revolutions until reaching 60 degrees BTDC.
5. Install the J 42069-10 crankshaft locking tool to the crankshaft drive gear with the knurled bolt.
6. Use the J 42098 to carefully turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump pulley flange. See «Special Tools and Equipment»(/cadillac/cts/i-2002-2007/remont/mechanical/#engine-mechanical-32l) .
7. Secure the moveable lever of the tool to the water pump pulley flange.
8. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover, as well as, the mark on the crankshaft gear with the mark on the oil pump housing.
9. Inspect the alignment of the marks on all four camshaft gears in reference to the marks on the J 42069-20 checking gage.
10. Repeat the Timing Belt Timing Procedure again if the marks do not align.
11. Continue with the engine reassembly if further timing belt adjustment is not needed.

Camshaft Cover Installation - Left

1. Lightly coat the new seals, including the O-rings, with engine oil prior to installation to assist in holding the O-ring seals to the camshaft cover.
2. Install the camshaft cover seals.
3. Apply a thin coat of silicone sealer G/M P/N 12346286 (Canadian P/N 10953472) to the front and back of the seals.
4. Apply a 3 mm (0.12 in) bead of silicone sealer GM P/N 12346286 (Canadian P/N 10953472) at the front and rear of the camshaft cover between the seals.
5. Install the camshaft cover to the cylinder head.
6. Install the camshaft cover bolts. Tighten: Tighten the camshaft cover bolts to 8 N.m (71 lb in).
7. Install the spark plugs. Tighten: Tighten the spark plugs to 25 N.m (18 lb ft).
8. Install the coil cassette.
9. Install the coil cassette bolts. Tighten: Tighten the coil cassette bolts to 8 N.m (71 lb in).
10. Install the oil filler cap.

Camshaft Cover Installation - Right

1. Lightly coat the new seals, including the O-rings, with engine oil prior to installation to assist in holding the O-ring seals to the camshaft cover.
2. Install the camshaft cover seals.
3. Apply a thin coat of silicone sealer GM P/N 12346286, (Canadian P/N 10953472), to the front and back of the seals.
4. Apply a 3 mm (0.12 in) bead of silicone sealer GM P/N 12346286, (Canadian P/N 10953472), at the front and rear of the camshaft cover between the seals.
5. Install the camshaft cover to the cylinder head.
6. Install the camshaft cover bolts. Tighten: Tighten the camshaft cover bolts to 8 N.m (71 lb in).
7. Install the spark plugs. Tighten: Tighten the spark plugs to 25 N.m (18 lb ft).
8. Install the coil cassette.
9. Install the coil cassette bolts. Tighten: Tighten the coil cassette bolts to 8 N.m (71 lb in).

Timing Belt Cover Installation - Front

1. Install the front timing belt cover.
2. Install the front timing belt cover bolts. Tighten: Tighten the front timing belt bolts to 8 N.m (71 lb in).
3. Install the wiring harness channel.
4. Install the water pump pulley.
5. Apply thread adhesive GM P/N 12345382, (Canadian P/N 10953489), to the water pump pulley bolts.
6. Install the water pump pulley bolts. Tighten: Tighten the water pump pulley bolts to 8 N.m (71 lb in).

Drive Belt Tensioner Installation

1. Install the drive belt tensioner to the engine.
2. Install the drive belt tensioner bolts. Tighten: Tighten the drive belt tensioner bolts to 35 N.m (26 lb ft).

Crankcase Vent Housing Installation

1. Apply sealant GM P/N 1052942, (Canadian P/N 10953466), to the mating surface of the crankcase vent housing.
2. Install the crankcase vent housing.
3. Install the crankcase vent housing bolt. Tighten: Tighten the crankcase vent housing bolt to 8 N.m (71 lb in).
4. Install the hoses to the crankcase vent housing.

Exhaust Manifold Installation - Left

1. Install the left side exhaust manifold gasket.
2. Install the left side exhaust manifold.
3. Install the left side exhaust manifold nuts. Tighten: Tighten the left side exhaust manifold nuts to 20 N.m (15 lb ft).

Exhaust Manifold Installation - Right

1. Install the right side exhaust manifold gasket.
2. Install the right side exhaust manifold.
3. Install the right side exhaust manifold nuts. Tighten: Tighten the right side exhaust manifold nuts to 20 N.m (15 lb ft).

Water Crossover Installation

1. Install the water crossover lower seals (2) and water crossover (3).
2. Install the water crossover upper seals (2) and bolts (1). Tighten: Tighten the water crossover bolts to 30 N.m (22 lb ft).

Intake Manifold Flange Installation

1. Install the intake manifold flange (2).
2. Apply thread adhesive GM P/N 12345382, (Canadian P/N 10953489), to the intake manifold flange bolts.
3. Install the intake manifold flange bolts. Tighten: Tighten the intake manifold flange bolts using tightening sequence to 20 N.m (15 lb ft).

Intake Manifold Installation

1. Ensure the intake manifold flange seals (3) are in place and not damaged.
2. Install the intake manifold (2).
3. Install the intake manifold bolts (1). Tighten: Tighten the intake manifold bolts to 20 N.m (15 lb ft).

Intake Plenum Installation

1. Lightly coat the intake plenum O-rings with engine oil.
2. Install the O-ring seals and intake plenum.
3. Install the intake plenum bolts. Tighten: Tighten the intake plenum bolts to 20 N.m (15 lb ft).
4. Install the intake plenum bolt caps.
5. Install the crankcase ventilation tube adapter.
6. Install the crankcase ventilation tube adapter bolt. Tighten: Tighten the crankcase ventilation tube adapter bolts to 8 N.m (71 lb in).
7. Install the vacuum lines to the crankcase vent tube adapter.
8. Install the ECM bracket.
9. Install the ECM bracket bolts. Tighten: Tighten the ECM bracket bolts to the intake manifold plenum to 8 N.m (71 lb in). Tighten the ECM bracket bolt to the cylinder head to 20 N.m (15 lb ft).
10. Install the ECM.
11. Install the ECM nuts. Tighten: Tighten the ECM nuts to 8 N.m (71 lb in).
12. Lightly coat the throttle body O-rings with clean engine oil.
13. Install the throttle body with O-rings.
14. Install the throttle body bolts. Tighten: Tighten the throttle body bolts to 8 N.m (71 lb in).

Oil Filter Adapter Installation

1. Lubricate the NEW oil filter adapter O-ring with clean engine oil.
2. Install the NEW O-ring on the oil filter adapter.
3. Install the oil filter adapter.
4. Install the female screw located inside the oil filter adapter. Tighten: Tighten the female screw to 25 N.m (18 lb ft).
5. Lubricate the NEW oil filter adapter plug O-ring with clean engine oil.
6. Install the O-ring onto the oil filter adapter plug.
7. Install the oil filter adapter plug. Tighten: Tighten the oil filter adapter plug to 25 N.m (18 lb ft).
8. Install the oil filter adapter bolts. Tighten: Tighten the oil filter adapter bolts to 20 N.m (15 lb ft).
9. Install a NEW oil filter to the oil filter cap.
10. Install the oil filter cap. Tighten: Tighten the oil filter cap to 25 N.m (18 lb ft).

Clutch Pilot Bearing Installation

1. Install the NEW clutch pilot bearing using a suitable clutch pilot bearing installation tool.
2. Measure to ensure the proper installation depth obtained (a). Specification: 8.75-9.25 mm (0.3445-0.3642 in)

Engine Flywheel Installation

1. Install the flywheel.
2. Apply thread adhesive GM P/N 12345493, (Canadian P/N 10953488) to the flywheel bolts.
3. Install new flywheel bolts. Tighten: Tighten the flywheel bolts to 65 N.m (48 lb ft) on the first pass. Tighten the flywheel bolts 30 degrees the second pass. Tighten the flywheel bolts 15 degrees the final pass.

Crankshaft Balancer Installation

1. Install the crankshaft balancer.
2. Install the crankshaft balancer bolts. Tighten: Tighten the crankshaft balancer bolts to 20 N.m (15 lb ft).

Scheme 55

A closed crankcase ventilation system provides a more complete scavenging of crankcase vapors. Fresh air from the engine air induction system is supplied to the crankcase, mixed with blow-by gases and then passed through the Crankcase Ventilation housing into the intake manifold.

Operation

The primary control is through the crankcase ventilation housing which meters the flow at a rate depending on the manifold vacuum. In order to maintain the idle quality, the crankcase ventilation housing restricts the flow when the intake manifold vacuum is high. If abnormal operating conditions arise, the system is designed to allow excessive amounts of blow-by gases to back flow through the crankcase vent tube into the engine air inlet to be consumed by normal combustion.

Drive Belt System Description

The drive belt system consists of the following components

1. The drive belt
2. The drive belt tensioner
3. The drive belt idler pulley
4. The crankshaft balancer pulley
5. The accessory drive component mounting brackets
6. The accessory drive components The power steering pump, if belt driven The generator The A/C compressor, if equipped The engine cooling fan, if belt driven The water pump, if belt driven The vacuum pump, if equipped The air compressor, if equipped

The drive belt system may use 1 belt or 2 belts. The drive belt is thin so that it can bend backwards and has several ribs to match the grooves in the pulleys. There also may be a V-belt style belt used to drive certain accessory drive components. The drive belts are made of different types of rubbers - chloroprene or EPDM - and have different layers or plys containing either fiber cloth or cords for reinforcement.

Both sides of the drive belt may be used to drive the different accessory drive components. When the back side of the drive belt is used to drive a pulley, the pulley is smooth.

The drive belt is pulled by the crankshaft balancer pulley across the accessory drive component pulleys. The spring loaded drive belt tensioner keeps constant tension on the drive belt to prevent the drive belt from slipping. The drive belt tensioner arm will move when loads are applied to the drive belt by the accessory drive components and the crankshaft.

The drive belt system may have an idler pulley, which is used to add wrap to the adjacent pulleys. Some systems use an idler pulley in place of an accessory drive component when the vehicle is not equipped with the accessory.

Block

The engine is a water-cooled 6 cylinder V configuration with twin camshafts per cylinder head and 4 valves per cylinder. The angle between the banks of cylinders is 54 degrees. The cylinder block is a one-piece cast iron casting with cylinder bores cast into the block. Oil galleries for the lubrication system are also drilled into the block.

Cylinder Heads

The engine has 2 cylinder heads identified as the left bank (cylinders 2, 4, 6) and right bank (cylinders 1, 3, 5). Each cylinder head is cast in a light aluminum alloy and fastened to the cylinder block with non-reusable torque-to-yield bolts. The combustion chambers are hemispherical with 4 valves per cylinder and the spark plugs are located in the center. The intake and exhaust valves have chromium-plated stems. The exhaust valves are sodium filled for heat dissipation. The valve guides are pressed in the cylinder head and are not replaceable, but can be serviced by reaming the guides to an over-sized diameter and installing valves with over-sized stems.

Camshafts

Each cylinder head has twin overhead camshafts. A toothed belt drives the 4 camshafts with a self-adjusting belt tensioner. The belt assembly also includes 2 eccentric pulleys for timing adjustment. The camshaft sprockets on the left cylinder head are interchangeable, as are the sprockets on the right cylinder head. The camshafts are direct acting on the valves via hydraulic lifters. The hydraulic lifters adjust automatically to the change in length of the valves at different temperatures. The hydraulic lifters are supplied oil through oil galleries in the cylinder head.

Pistons and Connecting Rods

The pistons are made of light alloy and are coated with graphite. There are grooves for two compression rings and one scraper ring. The top compression ring is flat and molybdenum coated. The lower compression ring is wider than the upper compression ring and has an oil scraper function. The oil-scraper ring consists of 3 parts, upper oil control ring, expander, lower oil control ring. The 3.2L (LA3) piston pins are full floating and are retained by locking clips in the piston pin bore. Connecting rods are manufactured in one piece. The 2.6L (LY9) piston pins are press fit. The connecting rods are fractured at the connecting rod journal and then machined for the proper clearance. The connecting rod bearings are replaceable. Connecting rod bolts are non-reusable torque-to-yield bolts.

Crankshaft

The crankshaft is supported by 4 main bearings. The crankshaft bearing caps are retained by a crankshaft bearing bridge which stiffens the block. All main bearings are replaceable. The number 4 main bearing is the thrust bearing. The number 2 and number 3 main bearings have no grooves in the bearing caps. The crankshaft reluctor wheel is bolted to the crankshaft.

New Product Information

The purpose of New Product Information is to highlight important technical changes from the previous model year.

Changes may include one or more of the following items

1. Torque values and/or fastener tightening strategies
2. Changed engine specifications
3. New sealants and/or adhesives
4. Disassembly and assembly procedure revisions
5. Engine mechanical diagnostic procedure revisions
6. New special tools required
7. A component comparison from the previous year

Torque Values and/or Fastener Tightening Strategies

Torque values and fastener tightening strategies are carryover from 2001 L81.

Changed Engine Specifications

1. Crankshaft stroke has been changed.
2. Cylinder bore has been changed.

New Sealants and/or Adhesives

1. A pipe sealant type material is used on the thermostat housing bolts.
2. A new anaerobic gasket marker is used on the engine oil cooler cover.
3. A new anaerobic gasket marker is used on the oil pan.

Disassembly and Assembly Procedure Revisions

The majority of the disassembly and assembly procedures have been revised, due to the newly designed engine assembly.

Engine Mechanical Diagnostic Procedure Revisions

A new Engine Compression Test procedure has been added using a Tech 2.

New Special Tools Required

J-43276 Clutch Pilot Bearing Remover

A Component Comparison from the Previous Year

1. The 3.2 liter, LA3, and 2.6 liter, LY9, engines have replaced the 3.0 liter, L81 engine.
2. Some of the new features include: Cylinder bores have enlarged to 87.5 mm (3.45 in) for the 3.2L and deceased to 83.2 mm (3.28 in) for the 2.6L. Crankshaft stroke has been changed to 88 mm (3.47 in) for the 3.2L and 79.6 mm (3.13 in) for the 2.6L. The 3.2L has a forged steel crankshaft. The 2.6L has pressed fit piston pins. A new oil filter adapter that allows room for the close-coupled catalytic converter. The ECM is now located on the right side camshaft cover. Multi-wall steel exhaust manifolds are used to decrease loss of exhaust gas heat. A new structural oil pan is used. Secondary Air Injection has been removed on both engines. Flywheel adapter and retainer has been deleted. A new engine block heater is being used. Timing belt idler pulley has been relocated, to minimize belt noise.

Scheme 56

The oil distribution in the LA3 and LY9 engines is as follows

1. Suction from the crankcase via the oil intake pipe to the oil pump.
2. Oil pump to the engine oil cooler.
3. Engine oil cooler to the oil filter.
4. Oil filter to the following: Main bearings 2, 3 and 4 Oil pressure regulating valve and the main bearing 1 Oil ventilation nozzles in the cylinder heads
5. Oil return galleys to crankcase.

Cleanliness and Care

1. Throughout this section, it should be understood that proper cleaning and protection of machined surfaces and friction areas is part of the repair procedure. This is considered standard shop practice even if not specifically stated.
2. When any internal engine parts are serviced, care and cleanliness is important.
3. When components are removed for service, they should be marked, organized or retained in a specific order for reassembly.
4. At the time of installation, components should be installed in the same location and with the same mating surface as when removed.
5. An automobile engine is a combination of many machined, honed, polished and lapped surfaces with tolerances that are measured in millimeters or thousandths of an inch. These surfaces should be covered or protected to avoid component damage.
6. A liberal coating of clean engine oil should be applied to friction areas during assembly.
7. Proper lubrication will protect and lubricate friction surfaces during initial operation.

Separating Parts

Separate, mark, or organize the following components

1. Piston and the piston pin
2. Piston to the specific cylinder bore
3. Piston rings to the piston
4. Connecting rod to the crankshaft journal
5. Connecting rod to the bearing cap
6. Crankshaft main and connecting rod bearings
7. Camshaft and valve lifters
8. Valve to the valve guide
9. Valve spring and shim to the cylinder head location
10. Engine block main bearing cap location and direction

Replacing Engine Gaskets

1. Gasket reuse and applying sealants: Do not reuse any gasket unless specified. Gaskets that can be reused will be identified in the service procedure. Do not apply sealant to any gasket or sealing surface unless called out in the service information.
2. Separating components: Use a rubber mallet to separate components. Tap the part sideways to loosen the components. Only tap in the components at bends or reinforced areas to prevent distortion and/or damage.
3. Cleaning gasket surfaces: Remove all gasket and sealing material from the part using a plastic or wood scraper (if required). Care must be used to avoid gouging or scraping the sealing surfaces. Do not use any other method or technique to remove sealant or gasket material from a part. Do not use abrasive pads, sand paper, or power tools to clean the gasket surfaces. These methods of cleaning can cause damage to the component sealing surfaces. Abrasive pads also produce a fine grit that the oil filter cannot remove from the oil. This grit is abrasive and has been known to cause internal engine damage.
4. Assembling components: When assembling components, use only the sealant specified or equivalent in the service procedure. Sealing surfaces should be clean and free of debris

Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealer

Pipe Joint Compound

1. Pipe joint compound is a pliable sealer that does not completely harden. This type sealer is used where two non-rigid parts are assembled together.
2. Do not use pipe joint compound in areas where extreme temperatures are expected. These areas include: exhaust manifold, head gasket, or other surfaces where gasket eliminator is specified.
3. Follow all safety recommendations and directions that are on the container.
4. Apply the pipe joint compound to a clean surface. Use a bead size or quantity as specified in the procedure. Run the bead to the inside of any bolt holes. Do not allow the sealer to enter any blind threaded holes, as it may prevent the bolt from clamping properly or cause component damage when the bolt is tightened.
5. Apply a continuous bead of pipe joint compound to one sealing surface. Sealing surfaces to be resealed must be clean and dry.
6. Tighten the bolts to specifications. Do not overtighten.

RTV Sealer

1. Room Temperature Vulcanizing (RTV) sealant hardens when exposed to air. This type sealer is used where 2 non-rigid parts (such as the intake manifold and the engine block) are assembled together.
2. Do not use Room Temperature Vulcanizing (RTV) sealant in areas where extreme temperatures are expected. These areas include: exhaust manifold, head gasket, or other surfaces where a gasket eliminator is specified.
3. Follow all safety recommendations and directions that are on the container.
4. Apply RTV to a clean surface. Use a bead size as specified in the procedure. Run the bead to the inside of any bolt holes. Do not allow the sealer to enter any blind threaded holes, as it may prevent the bolt from clamping properly or cause damage when the bolt is tightened.
5. Assemble components while RTV is still wet (within 10 minutes). Do not wait for RTV to skin over.
6. Tighten bolts to specifications. Do not overtighten.

Anaerobic Sealer

1. Anaerobic gasket eliminator hardens in the absence of air. This type sealer is used where two rigid parts are assembled together.
2. Follow all safety recommendations and directions that are on the container.
3. Apply a continuous bead flange. Surfaces to be resealed must be clean and dry.
4. Spread the sealer evenly with your finger to get a uniform coating on the sealing surface.
5. Do not allow the sealer to enter any blind threaded holes, as it may prevent the bolt from clamping properly or cause damage when tightened.
6. Tighten bolts to specifications. Do not overtighten.
7. After properly tightening the fasteners, remove the excess sealer from the outside of the joint.

Tools and Equipment

1. Special tools are listed and illustrated throughout this section with a complete listing at the end of the section. These tools (or their equivalents) are specially designed to quickly and safely accomplish the operations for which they are intended. The use of these special tools will also minimize possible damage to engine components. Some precision measuring tools are required for inspection of certain critical components. Torque wrenches and a torque angle meter are necessary for the proper tightening of various fasteners.
2. To properly service the engine assembly, the following items should be readily available: Approved eye protection and safety gloves A clean, well-lit, work area A suitable parts cleaning tank A compressed air supply Trays or storage containers to keep parts and fasteners organized An adequate set of hand tools Approved engine repair stand An approved engine lifting device that will adequately support the weight of the components

Special Tools

Special Tools Illustration Tool Number/Description J 7872 Magnetic Base Dial Indicator J 8001 Dial Indicator Set J 8037 Piston Ring Compressor J 8062 Valve Spring Compressor J 8087 Cylinder Bore Gage J 8089 Carbon Removal Brush J 9666 Valve Spring Tester J 28410 Gasket Remover J 28467-B Universal Engine Support Fixture J 28467-501 Engine Support Fixture Adapters J 35268-A Camshaft/Front Main Seal Installer J 35667-A Cylinder Head Leakdown Tester J 36660-A Torque Angle Meter J 38185 Hose Clamp Pliers J 39400 Electronic Halogen Leak Detector J 39456 Universal Engine Tilter J 41742 Connecting Rod Guide Pin J 41774 Valve Spring Compressor Adapter J 41775 Valve Seal Installer J 42065 Crank Hub Holding Tool J 42067 Rear Main Seal Installer J 42069 Timing Belt Alignment Kit J 42098 Crank Hub TORX® Socket J 43276 Clutch Pilot Bearing Remover J 43301 Coil Pack Puller J 45299 Engine Pre-Luber

Scheme 57

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Scheme 70

Scheme 71

See also:
• Strategy Based Diagnosis
• Checking Aftermarket Accessories
• Diagnostic Starting Point - Engine Cooling
• Spark Plug Inspection
• Detonation/Spark Knock
• Battery Disconnect Caution
• Belt Dressing Notice
• Fastener Notice
• Vibration Analysis - Engine
• Water Pump Replacement (LY7)
• Lifting and Jacking the Vehicle
• Catalytic Converter Replacement - Left (LA3, LY9)
• Catalytic Converter Replacement - Right (LA3, LY9)
• Starter Motor Replacement (LA3, LY9)
• Fuel Pressure Relief Procedure
• Quick Connect Fitting(s) Service (Metal Collar)
• Torque to Yield Bolts Notice
• Exhaust Manifold Replacement - Left (LA3, LY9)
• Exhaust Manifold Replacement - Right (LA3, LY9)
• Transmission Replacement (3.2L)
• Frame Replacement - Front
• Component Fastener Tightening Notice
• Air Inlet Grille Panel Replacement (LHD)
• Wiper Motor Module Replacement (LHD)
• Exhaust System Replacement (LA3, LY9)
• Catalytic Converter Hanger Bracket Replacement
• Propeller Shaft Replacement (Automatic Transmission)
• Idle Learn Procedure
• Fluid and Lubricant Recommendations
• Capacities - Approximate Fluid
• Safety Glasses Caution
• Disassembled Views
• Drive Belt System Description
• Diagnostic Starting Point - Engine Mechanical
• Base Engine Misfire without Internal Engine Noises
• Base Engine Misfire with Abnormal Internal Lower Engine Noises
• Base Engine Misfire with Abnormal Valve Train Noise
• Base Engine Misfire with Coolant Consumption
• Base Engine Misfire with Excessive Oil Consumption
• Engine Noise on Start-Up, but Only Lasting a Few Seconds
• Upper Engine Noise, Regardless of Engine Speed
• Lower Engine Noise, Regardless of Engine Speed
• Engine Noise Under Load
• Engine Will Not Crank - Crankshaft Will Not Rotate
• Engine Compression Test
• Oil Consumption Diagnosis
• Oil Pressure Diagnosis and Testing
• Engine Flywheel Replacement
• Cylinder Head Cleaning and Inspection
• Cylinder Head Replacement - Left
• Cylinder Head Replacement - Right
• Piston, Connecting Rod, and Bearings Cleaning and Inspection
• Fastener Tightening Specifications
• Drive Belt Tensioner Diagnosis
• Engine Support Fixture
• Intake Plenum Manifold Disassemble
• Intake Plenum Manifold Cleaning and Inspection
• Intake Plenum Manifold Assemble
• Intake Manifold Disassemble
• Intake Manifold Cleaning and Inspection
• Intake Manifold Assemble
• Timing Belt Cover Cleaning and Inspection - Front
• Timing Belt Inspection
• Timing Belt Timing Procedure
• Timing Belt Replacement
• Camshaft Drive Sprocket Replacement
• Camshaft Cover Cleaning and Inspection
• Cylinder Head Disassemble
• Cylinder Head Assemble
• Crankshaft Pulley Replacement
• Oil Pan Cleaning and Inspection
• Oil Pump Cleaning and Inspection
• Oil Pump Disassemble
• Oil Pump Assemble
• Oil Cooler Cleaning and Inspection
• Crankshaft Main Bearing Selection Specifications
• Engine Mechanical Specifications (LY9)
• Engine Mechanical Specifications (LA3)