Home/Cadillac/ATS/Cadillac ATS I (2012-2014)/Repair manual/Mechanical/Engine Mechanical - 3.6l (Lfx) - Repair Instructions - on V…
Contents Wiring diagrams Section: Mechanical All sections

Engine Mechanical - 3.6l (Lfx) - Repair Instructions - on Vehicle Cadillac ATS I

Mechanical 20 illustrations ~11879 words

Scheme 21

Scheme 21: Drive Belt Replacement
CalloutComponent Name
Preliminary Procedure Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
1Drive Belt Procedure Rotate the drive belt tensioner counter clockwise to release the drive belt tension. Slide the drive belt off of the water pump pulley. Slowly release the drive belt tensioner.

Drive Belt Replacement

Scheme 22

Scheme 22: Drive Belt Tensioner Replacement
CalloutComponent Name
Preliminary Procedure Remove the drive belt. Refer to Drive Belt Replacement .
1Drive Belt Tensioner Fastener CAUTION: Refer to Fastener Caution . Tighten 58 N.m (43 lb ft)
2Drive Belt Tensioner
CAUTION
Refer to Fastener Caution .

Drive Belt Tensioner Replacement

Scheme 23

Scheme 23: Generator and Drive Belt Tensioner Bracket Replacement
CalloutComponent Name
Preliminary Procedure Remove the generator. Refer to Generator Replacement (LFX) .
1Fastener CAUTION: Refer to Fastener Caution . Procedure Position the coolant hose clamp clear of the generator and drive belt tensioner bracket. Tighten 22 N.m (16 lb ft)
2Fastener Tighten 50 (37 lb ft)
3Fastener (QTY:3) Tighten 50 (37 lb ft)
4Generator and Drive Belt Tensioner Bracket.
CAUTION
Refer to Fastener Caution .

Generator and Drive Belt Tensioner Bracket Replacement

Scheme 24

Scheme 24: Engine Support Fixture
CalloutComponent Name
Preliminary Procedures Remove the front compartment front sight shield. Refer to Front Compartment Front Sight Shield Replacement . Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement . Remove the radiator surge tank. Refer to Radiator Surge Tank Replacement (LFX) . Remove the secondary air injection pump inlet hose, if equipped. Refer to Secondary Air Injection Pump Inlet Hose Replacement . Special Tools EN-36857 Engine Lift Bracket EN-46114 Engine Lift Bracket EN-28467-550 Engine Support Beam Adapters J-284678-518 Main Support Beam EN-28467-2A Radiator Tube Shelf Assembly EN-28467-1A Cross Bracket EN-28467-4A Front Support Assembly J-28467-6A Bracket Assembly EN-28467-8A Hook Assembly EN-28467-34 Lift Hook Wing Nut and Washer For equivalent regional tools. Refer to Special Tools
1EN-36857 Engine Lift Bracket Procedure Place engine lift bracket on cylinder head and install two bolts to retain lift bracket.
2EN-36857 Engine Lift Bracket Procedure Remove exhaust nut and place engine lift bracket on stud and replace nut to retain lift bracket.
3EN-28467-550 Engine Support Beam Adapters (Qty:2) Procedure Place engine support beam adapters on the strut towers as shown.
4J-284678-518 Main Support Beam Procedure Install main support beam through engine support beam adapters and pin in place.
5EN-28467-2A Radiator Tube Shelf Assembly (Qty: 2) Procedure Place radiator shelf tubes on top of main support beam.
6EN-28467-1A Cross Bracket (Qty: 2) Procedure Loosely install cross bracket to retain radiator shelf tube to main support beam. Tighten cross bracket after front support assembly is in place.
7EN-28467-4A Front Support Assembly (Qty: 2) Procedure Place front support assembly through radiator tube shelf and pin at proper height.
8J-28467-6A Bracket Assembly (Qty: 2)
9EN-28467-8A Hook Assembly (Qty: 2)
10EN-28467-34 Lift Hook Wing Nut and Washer (Qty: 2)

Engine Support Fixture

Engine Mount Inspection

  1. Install the engine support fixture. Refer to «Engine Support Fixture»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) . 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. The phenolic spacer under the top mounting stud of the engine mount is missing or damaged (vehicles equipped with magnesium engine mount brackets).
  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 Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) , or «Engine Mount Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Scheme 25

Scheme 25: Engine Mount Replacement - Left Side
CalloutComponent Name
Preliminary Procedures Install the engine support fixture. Refer to Engine Support Fixture . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the engine compartment lower noise shield. Refer to Engine Compartment Lower Noise Shield Replacement . Remove the left frame brace.
1Engine Mount Fastener CAUTION: Refer to Component Fastener Tightening Caution . Procedure Working under the hood, remove the engine mount upper fastener. Tighten 70 N.m (52 lb ft)
2Engine Mount Fastener (Qty: 2) Tighten 58 N.m (43 lb ft)
3Engine Mount Procedure Using the engine support fixture, raise the engine enough to remove the engine mount.
4Phenolic Spacer CAUTION: Phenolic spacer must be present to prevent galvanic/corrosive reaction and/or excessive temperature conduction between engine mount bracket and engine mount. Replace mount if phenolic spacer is missing or damaged. Failure to ensure phenolic spacer is intact and not damaged can lead to premature failure of engine mount and/or engine mount bracket. Procedure Inspect the engine mount to ensure the phenolic spacer is in place and not damaged.
CAUTION
Phenolic spacer must be present to prevent galvanic/corrosive reaction and/or excessive temperature conduction between engine mount bracket and engine mount. Replace mount if phenolic spacer is missing or damaged. Failure to ensure phenolic spacer is intact and not damaged can lead to premature failure of engine mount and/or engine mount bracket.

Engine Mount Replacement - Left Side

Scheme 26

Scheme 26: Engine Mount Replacement - Right Side
CalloutComponent Name
Preliminary Procedures Install the engine support fixture. Refer to Engine Support Fixture . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the engine compartment lower noise shield. Refer to Engine Compartment Lower Noise Shield Replacement . Remove the right frame brace.
1Engine Mount Fastener CAUTION: Refer to Component Fastener Tightening Caution . Procedure Working under the hood, remove the engine mount upper fastener. Tighten 70 N.m (52 lb ft)
2Engine Mount Fastener (Qty: 2) Tighten 58 N.m (43 lb ft)
3Engine Mount Procedure Using the engine support fixture, raise the engine enough to remove the engine mount.
4Phenolic Spacer CAUTION: Phenolic spacer must be present to prevent galvanic/corrosive reaction and/or excessive temperature conduction between engine mount bracket and engine mount. Replace mount if phenolic spacer is missing or damaged. Failure to ensure phenolic spacer is intact and not damaged can lead to premature failure of engine mount and/or engine mount bracket. Procedure Inspect the engine mount to ensure the phenolic spacer is in place and not damaged.
CAUTION
Phenolic spacer must be present to prevent galvanic/corrosive reaction and/or excessive temperature conduction between engine mount bracket and engine mount. Replace mount if phenolic spacer is missing or damaged. Failure to ensure phenolic spacer is intact and not damaged can lead to premature failure of engine mount and/or engine mount bracket.

Engine Mount Replacement - Right Side

Scheme 27

Scheme 27: Engine Mount Bracket Replacement - Left Side
CalloutComponent Name
Preliminary Procedures Remove the left engine mount. Refer to Engine Mount Replacement - Left Side .
1Engine Mount Bracket Fastener (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 60 (44 lb ft)
2Engine Mount Bracket Fastener Tighten 38 (28 lb ft) for vehicles equipped with AWD Tighten 22 (16 lb ft) for vehicles equipped with RWD
3Engine Mount Bracket NOTE: Engine mount brackets are magnesium. To prevent galvanic corrosion, the bracket includes pressed on spacers on the back side. Even though it is highly unlikely, the pressed on spacers may loosen and fall off during engine mount bracket removal. Ensure the spacers are in place before reinstalling an existing bracket.
CAUTION
Refer to Fastener Caution .
NOTE
Engine mount brackets are magnesium. To prevent galvanic corrosion, the bracket includes pressed on spacers on the back side. Even though it is highly unlikely, the pressed on spacers may loosen and fall off during engine mount bracket removal. Ensure the spacers are in place before reinstalling an existing bracket.

Engine Mount Bracket Replacement - Left Side

Scheme 28

Scheme 28: Engine Mount Bracket Replacement - Right Side
CalloutComponent Name
Preliminary Procedures Remove the right engine mount. Refer to Engine Mount Replacement - Right Side .
1Engine Mount Bracket Fastener (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten 60 (44 lb ft)
2Engine Mount Bracket NOTE: Engine mount brackets are magnesium. To prevent galvanic corrosion, the bracket includes pressed on spacers on the back side. Even though it is highly unlikely, the pressed on spacers may loosen and fall off during engine mount bracket removal. Ensure the spacers are in place before reinstalling an existing bracket.
CAUTION
Refer to Fastener Caution .
NOTE
Engine mount brackets are magnesium. To prevent galvanic corrosion, the bracket includes pressed on spacers on the back side. Even though it is highly unlikely, the pressed on spacers may loosen and fall off during engine mount bracket removal. Ensure the spacers are in place before reinstalling an existing bracket.

Engine Mount Bracket Replacement - Right Side

Scheme 29

Scheme 29: Intake Manifold Cover Replacement
CalloutComponent Name
1Intake Manifold Cover Fastener Procedure Flip open the access cover. Tighten 9 N.m (80 lb in)
2Oil Cap Procedure Remove the oil cap before removing the intake manifold cover.
3Intake Manifold Cover Procedure Pull the intake manifold cover upward to remove.

Intake Manifold Cover Replacement

Scheme 30

Scheme 30: Intake Manifold Insulator Replacement
CalloutComponent Name
Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
1Intake Manifold Insulator Retainers (Qty;2)
2Intake Manifold Insulator

Intake Manifold Insulator Replacement

Scheme 31

Scheme 31: Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Dirty Air)
CalloutComponent Name
Preliminary Procedure Remove the intake manifold insulator. Refer to Intake Manifold Insulator Replacement ..
1PCV Pipe Fitting Procedure Disconnect the pipe at right side camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service .
2PCV Pipe Fitting Procedure Turn the PCV air tube connector 90 degrees to detach the connector from the intake manifold
3PCV Pipe

Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Dirty Air)

Scheme 32

Scheme 32: Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Clean Air)
CalloutComponent Name
Preliminary Procedure Remove the intake manifold insulator. Refer to Intake Manifold Insulator Replacement ..
1PCV Pipe Fitting Procedure Disconnect the pipe from the air cleaner outlet duct. Refer to Plastic Collar Quick Connect Fitting Service .
2PCV Pipe Fitting Procedure Disconnect the pipe from the left side valve cover.
3PCV Pipe

Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Clean Air)

Removal Procedure

  1. Remove the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the intake manifold insulator (2). Refer to «Intake Manifold Insulator Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  3. Remove the air outlet duct. Refer to «Air Cleaner Outlet Duct Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  4. Disconnect the brake booster vacuum hose (5) from the intake manifold.
  5. Disconnect the MAP sensor connector (2).
  6. Disconnect and reposition the secondary air injection hose (3), if equipped.
  7. Remove the fuel pipe shield (4). Refer to «Fuel Pipe Shield Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  8. Disconnect the EVAP solenoid (1) connector and hose.
  9. Disconnect the throttle body connector (6).
  10. Remove the PCV dirty air hose (3).
  11. Remove the intake manifold bolts (1).
  12. Remove the intake manifold (2).
  13. Remove and discard the intake manifold gasket (1).
  14. Clean and inspect the intake manifold. Refer to «Intake Manifold Cleaning and Inspection (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  15. If necessary, disassemble the intake manifold. Refer to «Intake Manifold Disassemble (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__intake-manifold-disassemble-lfx) .

Installation Procedure

  1. If disassembled, assemble the intake manifold. Refer to «Intake Manifold Assemble (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__intake-manifold-assemble-lfx) .
  2. Install the NEW intake manifold gasket (1).
  3. Install the intake manifold (2).
  4. install the intake manifold fastener (1) and finger tighten.
  5. Tighten the intake manifold bolts in the sequence shown. Tighten First pass tighten the intake manifold to 25 N.m (18 lb ft). Final pass tighten the intake manifold to 25 N.m (18 lb ft).
  6. Install the PCV dirty air hose (3).
  7. Connect the brake booster vacuum hose (5) to the intake manifold.
  8. Connect the MAP sensor connector (2).
  9. Connect the secondary air injection hose (3), if equipped.
  10. Install the fuel pipe shield (4). Refer to «Fuel Pipe Shield Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  11. Disconnect the EVAP solenoid (1) connector and hose.
  12. Disconnect the throttle body connector (6).
  13. Install the air outlet duct. Refer to «Air Cleaner Outlet Duct Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  14. Install the intake manifold insulator (2). Refer to «Intake Manifold Insulator Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  15. Install the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  1. Remove the intake manifold cover. Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Unclip and reposition the main harness and the lower harness away from the oil level indicator tube.
  3. Remove the oil level indicator tube bracket bolt (1).
  4. Remove the oil level indicator and tube (2) by sliding the tube out from the lower crankcase hole.
  5. Remove and discard the O-ring from the oil level indicator tube if damaged.
  1. Install a NEW O-ring on the oil level indicator tube
  2. Position the oil level indicator and tube (2) by sliding the tube down and in to the approximate location of the lower crankcase hole.
  3. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/ats/i-2012-2014/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) .
  4. Guide the lower portion of the oil level indicator tube into the lower crankcase hole and seat the oil level indicator tube in place
  5. lower the vehicle.
  6. Install the oil level indicator tube bracket bolt (1) and tighten to 10 N.m (89 lb in).
  7. Position and clip the main harness and the lower harness to the oil level indicator tube.
  8. Install the intake manifold cover. Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  1. Disconnect the battery. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  2. Remove the engine compartment lower noise shield. Refer to «Engine Compartment Lower Noise Shield Replacement»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  3. Remove the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  4. Remove the oil filter and allow to drain. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  5. Install the oil filter.
  6. Remove the drive belt (1). Refer to «Drive Belt Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  7. Remove the A/C compressor bolts and reposition the A/C compressor in order to gain access to the oil filter adapter fasteners. Refer to «Air Conditioning Compressor Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  8. Disconnect the oil pressure sensor electrical connector.
  9. Place a drain pan under the vehicle.
  10. Remove the oil filter adapter bolts (1 and 2).
  11. Remove the oil filter adapter (3).
  12. Remove and discard the oil filter adapter gasket.
  1. Position a NEW oil filter adapter gasket onto the oil filter adapter.
  2. Install the oil filter adapter (3).
  3. Install the oil filter adapter bolts (1, 2) into the oil filter adapter and hand tighten.
  4. Tighten the oil filter adapter bolts (2) to 25 N.m (18 lb ft).
  5. Tighten the oil filter adapter bolt (1) to 58 N.m (43 lb ft).
  6. Connect the oil pressure sensor electrical connector.
  7. Install the A/C compressor with the A/C pipes to the engine. Refer to «Air Conditioning Compressor Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  8. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  9. Install the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  10. Install the engine compartment lower noise shield. Refer to «Engine Compartment Lower Noise Shield Replacement»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  11. Connect the battery. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  12. Check and add engine oil as necessary.
  1. Disconnect the battery. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  2. Remove the engine compartment lower noise shield. Refer to «Engine Compartment Lower Noise Shield Replacement»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  3. Remove the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  4. Remove the oil filter and allow to drain then reinstall the oil filter. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  5. Remove the drive belt (1). Refer to «Drive Belt Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  6. Remove the A/C compressor bolts and reposition the A/C compressor in order to gain access to the oil filter adapter fasteners. Refer to «Air Conditioning Compressor Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  7. Disconnect the oil pressure sensor electrical connector.
  8. Disconnect the engine oil cooler inlet and outlet hoses from the oil filter adapter.
  9. Place a drain pan under the vehicle.
  10. Remove the oil filter adapter bolts (1 and 2).
  11. Remove and discard the oil filter adapter gasket (3).
  12. Remove the oil filter adapter (4).
  13. If replacing the oil filter adapter, transfer parts as necessary.
  1. Position a NEW oil filter adapter gasket (3) onto the oil filter adapter.
  2. Install the oil filter adapter (4).
  3. Install the oil filter adapter bolts (1, 2) into the oil filter adapter and hand tighten.
  4. Tighten the oil filter adapter bolts (2) to 25 N.m (18 lb ft).
  5. Tighten the oil filter adapter bolt (1) to 58 N.m (43 lb ft).
  6. Connect the engine oil cooler inlet and outlet hoses to the oil filter adapter.
  7. Connect the oil pressure sensor electrical connector.
  8. Install the A/C compressor with the A/C pipes to the engine. Refer to «Air Conditioning Compressor Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  9. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  10. Install the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  11. Install the engine compartment lower noise shield. Refer to «Engine Compartment Lower Noise Shield Replacement»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  12. Connect the battery. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  13. Check and add engine oil as necessary.

Crankshaft Balancer Replacement

Special Tools

  1. EN-38416-2 Crankshaft Button
  2. EN-41816 Crankshaft Balancer Remover
  3. EN-41998-B Crankshaft Balancer Installer
  4. EN-45059 Angle Meter
  5. EN-46106 Flywheel Holding Tool

For equivalent regional tools, refer to Special Tools .

  1. Remove the drive belt. Refer to «Drive Belt Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the engine coolant fan shroud. Refer to «Engine Coolant Fan Shroud Replacement (LFX with KC4)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system) , «Engine Coolant Fan Shroud Replacement (LCV, LFX without KC4)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system) .
  3. Remove the starter. Refer to «Starter Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  4. Install the EN-46106 tool (1) through the starter mounting hole.
  5. Remove the crankshaft balancer bolt and washer (1). Discard the bolt.
  6. Install the EN-38416-2 button (2) in the nose of the crankshaft.
  7. Install the EN-41816 remover (1) in order to remove the crankshaft balancer (3).
  8. Tighten the center bolt of the EN-41816 remover (1) in order to pull the crankshaft balancer off of the crankshaft.
  9. Remove the EN-41816 remover and EN-38416-2 button from the crankshaft balancer.
  1. The EN-46106 tool (1) must be installed onto the flywheel.
  2. Apply lubricant to the inside of the crankshaft balancer hub bore.
  3. Place the crankshaft balancer (1) in position on the crankshaft.
  4. Thread the EN-41998-B installer (2) in the crankshaft. Ensure you engage at least 10 threads of the EN-41998-B installer before pressing the crankshaft balancer in place.
  5. Push the crankshaft balancer into position by tightening the nut on the EN-41998-B installer until the large washer bottoms out on the crankshaft end.
  6. Remove the EN-41998-B installer.
  7. Install the NEW crankshaft balancer bolt (1).
  8. Tighten the crankshaft balancer bolt to 100 (74 lb ft) and an additional 150 degrees using the EN-45059 meter.
  9. Remove the EN-46106 tool (1) .
  10. Install the starter. Refer to «Starter Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  11. Install the engine coolant fan shroud. Refer to «Engine Coolant Fan Shroud Replacement (LFX with KC4)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system) , «Engine Coolant Fan Shroud Replacement (LCV, LFX without KC4)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system) .
  12. Install the drive belt. Refer to «Drive Belt Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Crankshaft Front Oil Seal Replacement

Special Tools

EN-29184 Oil Seal Installer

For equivalent regional tools, refer to Special Tools .

  1. Remove the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__crankshaft-balancer-replacement) .
  2. Remove the crankshaft front oil seal using a suitable flat blade tool.
  1. Use the EN-29184 installer (1) or equivalent to install the crankshaft front oil seal (2).
  2. Install the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__crankshaft-balancer-replacement) .

Camshaft Cover Replacement - Left Side

Special Tools

EN-46101 Spark Plug Tube Seal Guide

For equivalent regional tools, refer to Special Tools .

  1. Remove the left diagonal brace. Refer to «Front End Sheet Metal Diagonal Brace Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  2. Remove the fuel pipe shield. Refer to «Fuel Pipe Shield Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  3. Remove the intake manifold (2). Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  4. Remove the ignition coils. Refer to «Ignition Coil Replacement - Bank 2»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  5. Disconnect and remove the engine harness from the camshaft cover.
  6. Remove the left camshaft cover bolts.
  7. Remove the left camshaft cover from the left cylinder head.
  8. Install the EN-46101 guide onto the spark plug tubes of the left cylinder head.
  9. Clean the mating surfaces of the cylinder head and the camshaft cover. Refer to «Camshaft Cover Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle)
  1. Install new camshaft cover bolt grommets prior to installing the camshaft cover bolts.
  2. Place a bead 8 mm (0.3150 in) in diameter by 4 mm (0.1575 in) in height of RTV sealant equivalent, on the engine front cover split lines (1).
  3. Place the left camshaft cover into position onto the left cylinder head.
  4. Loosely install the left camshaft cover bolts.
  5. Tighten the left camshaft cover bolts in the sequence shown to 10 N.m (89 lb in).
  6. Remove the EN-46101 guide from the spark plug tubes of the left cylinder head.
  7. Connect and install the engine harness to the camshaft cover.
  8. Install the ignition coils. Refer to «Ignition Coil Replacement - Bank 2»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  9. Install the intake manifold (2). Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  10. Install the fuel pipe shield. Refer to «Fuel Pipe Shield Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  11. Install the left diagonal brace. Refer to «Front End Sheet Metal Diagonal Brace Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .

Camshaft Cover Replacement - Right Side

Special Tools

EN-46101 Spark Plug Tube Seal Guide

For equivalent regional tools, refer to Special Tools

  1. Remove the intake manifold (2). Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the ignition coils. Refer to «Ignition Coil Replacement - Bank 1»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions)
  3. Remove the plenum front panel. Refer to «Plenum Front Panel Replacement»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  4. Remove the right diagonal brace. Refer to «Front End Sheet Metal Diagonal Brace Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  5. Disconnect and remove the engine harness from the camshaft cover.
  6. Remove the right camshaft cover bolts.
  7. Remove the right camshaft cover from the right cylinder head.
  8. Install the EN-46101 guide onto the spark plug tubes of the right cylinder head.
  9. Clean the mating surfaces of the cylinder head and the camshaft cover. Refer to «Camshaft Cover Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle)
  1. Install new camshaft cover bolt grommets prior to installing the camshaft cover bolts.
  2. Place a bead 8 mm (0.3150 in) in diameter by 4 mm (0.1575 in) in height of RTV sealant, on the engine front cover split lines (1).
  3. Place the right camshaft cover into position onto the right cylinder head.
  4. Loosely install the right camshaft cover bolts.
  5. Tighten the right camshaft cover bolts in the sequence shown to 10 N.m (89 lb in).
  6. Remove the EN-46101 guide from the spark plug tubes of the right cylinder head.
  7. Connect and install the engine harness to the camshaft cover.
  8. Install the right diagonal brace. Refer to «Front End Sheet Metal Diagonal Brace Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  9. Install the plenum front panel. Refer to «Plenum Front Panel Replacement»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  10. Install the ignition coils. Refer to «Ignition Coil Replacement - Bank 1»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions)
  11. Install the intake manifold (2). Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Engine Front Cover Replacement

Special Tools

EN-46109 Engine Front Cover Installation Guide Pins

For equivalent regional tools, refer to Special Tools .

  1. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  2. Remove the water pump pulley. Refer to «Water Pump Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__water-pump-replacement-lfx) .
  3. Remove the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  4. If equipped, remove the secondary air injection pump. Refer to «Secondary Air Injection Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  5. Remove the camshaft covers. Refer to «Camshaft Cover Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-left-side) , and «Camshaft Cover Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-right-side) .
  6. Drain the engine coolant. Refer to «Cooling System Draining and Filling (Static Fill)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-static) , «Cooling System Draining and Filling (GE 47716)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-ge) .
  7. Remove the water outlet with the radiator hose and reposition aside. Refer to «Water Outlet Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system) .
  8. Remove the generator and drive belt tensioner bracket . Refer to «Generator and Drive Belt Tensioner Bracket Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle)
  9. Remove the air conditioner compressor bracket . Refer to «Air Conditioning Compressor Bracket Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  10. Remove the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__crankshaft-balancer-replacement) .
  11. Remove the engine front cover with the water pump. Refer to «Engine Front Cover Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-front-cover-removal) .
  12. Disassemble the engine front cover. Refer to «Engine Front Cover Disassemble»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-front-cover-disassemble) .
  13. Carefully clean the engine front cover sealing surfaces. Refer to «Engine Front Cover Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-front-cover-cleaning-and-inspection) .
  14. Carefully clean the engine front cover sealing surfaces. Refer to «Engine Front Cover Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-front-cover-cleaning-and-inspection) .
  15. Use compressed air in order to remove any engine coolant from the engine cooling passages and from the top of the oil pan scraper (windage tray).
  1. Assemble the engine front cover. Refer to «Engine Front Cover Assemble»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-front-cover-assemble) .
  2. Use the EN-46109 pins in order to install the engine front cover. Refer to «Engine Front Cover Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-front-cover-installation) .
  3. Install the crankshaft balancer. Refer to «Crankshaft Balancer Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__crankshaft-balancer-replacement) .
  4. Install the water outlet with radiator hose. Refer to «Water Outlet Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system) .
  5. Install the camshaft covers. Refer to «Camshaft Cover Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-left-side) , and «Camshaft Cover Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-right-side) .
  6. Install the air conditioner compressor bracket . Refer to «Air Conditioning Compressor Bracket Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  7. Install the generator and drive belt tensioner bracket . Refer to «Generator and Drive Belt Tensioner Bracket Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle)
  8. If equipped, install the secondary air injection pump. Refer to «Secondary Air Injection Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  9. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  10. Install the water pump pulley. Refer to «Water Pump Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__water-pump-replacement-lfx) .
  11. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  12. Fill the cooling system. Refer to «Cooling System Draining and Filling (Static Fill)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-static) , «Cooling System Draining and Filling (GE 47716)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-ge) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the camshaft timing chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the camshaft timing chain components. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the right side secondary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the right side secondary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the left bank secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Removal - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-removal) .
  3. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  1. Install the left bank secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Installation - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-installation) .
  2. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the right side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Removal - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-removal) .
  3. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the right side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-installation) .
  2. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the left side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Removal - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-removal) .
  3. Remove the left side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the left side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the left side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Installation - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-installation) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the right side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Removal - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-removal) .
  3. Remove the right side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the right side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the right side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-installation) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the left side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Removal - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-removal) .
  3. Remove the left side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the left side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the left side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Installation - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-installation) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the right side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Removal - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-removal) .
  3. Remove the right side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) . Replace components as necessary.
  1. Install the right side secondary camshaft drive chain shoe and guide. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the right side secondary camshaft drive chain tensioner. Refer to «Secondary Timing Chain Tensioner Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__secondary-timing-chain-tensioner-installation) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the right side secondary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Remove the primary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Clean and inspect all of the camshaft timing drive components. Refer to «Camshaft Timing Drive Components Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  1. Install the primary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the right side secondary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove spark plugs. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  2. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  3. Remove the camshaft timing chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Remove the left intermediate drive chain idler sprocket. Refer to «Timing Chain Idler Sprocket Removal - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__timing-chain-idler-sprocket-removal) .
  1. Install the left intermediate drive chain idler sprocket. Refer to «Timing Chain Idler Sprocket Installation - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__timing-chain-idler-sprocket-installation) .
  2. Install the camshaft timing chain components. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  4. Install spark plugs. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  1. Remove spark plugs. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  2. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  3. Remove the right side secondary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Remove the primary camshaft drive chain components. Refer to «Camshaft Timing Chain Components Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  5. Remove the right intermediate drive chain idler sprocket. Refer to «Timing Chain Idler Sprocket Removal - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__timing-chain-idler-sprocket-removal) .
  1. Install the left intermediate drive chain idler sprocket. Refer to «Timing Chain Idler Sprocket Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__timing-chain-idler-sprocket-installation) .
  2. Install the camshaft timing chain components. Refer to «Camshaft Timing Chain Components Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  4. Install spark plugs. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the primary camshaft drive chain tensioner. Refer to «Primary Camshaft Intermediate Drive Chain Tensioner Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__primary-camshaft-intermediate-drive-chain-tensioner) .
  1. Install the primary camshaft drive chain tensioner. Refer to «Primary Camshaft Intermediate Drive Chain Tensioner Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  2. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  1. Remove the primary camshaft drive chain tensioner. Refer to «Primary Camshaft Intermediate Drive Chain Tensioner Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the primary camshaft drive chain lower guide bolts.
  3. Remove the primary camshaft drive chain lower guide.
  1. Position the primary camshaft drive chain lower guide to the oil pump.
  2. Install the primary camshaft drive chain lower guide bolts and tighten to 23 N.m (17 lb ft).
  3. Install the primary camshaft drive chain tensioner. Refer to «Primary Camshaft Intermediate Drive Chain Tensioner Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  1. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  2. Remove the primary camshaft drive chain tensioner. Refer to «Primary Camshaft Intermediate Drive Chain Tensioner Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__primary-camshaft-intermediate-drive-chain-tensioner) .
  3. Remove the primary upper camshaft drive chain guide. Refer to «Primary Timing Chain Guide Removal - Upper»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__primary-timing-chain-guide-removal) .
  1. Install the primary upper camshaft drive chain guide. Refer to «Primary Timing Chain Guide Installation - Upper»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__primary-timing-chain-guide-installation) .
  2. Install the primary camshaft drive chain tensioner. Refer to «Primary Camshaft Intermediate Drive Chain Tensioner Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .

Camshaft Position Actuator Replacement - Bank 1

Special Tools

  1. EN49982-1 Timing Chain Retainer
  2. EN49982-2 Timing Chain Retainer

For equivalent regional tools, refer to Special Tools .

  1. Remove the camshaft cover. Refer to «Camshaft Cover Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-right-side) .
  2. Remove the camshaft position actuator solenoid valve solenoid - intake. Refer to «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  3. Remove the intake camshaft position sensor. Refer to «Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  4. Remove the exhaust camshaft position sensor. Refer to «Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  5. Remove the camshaft position actuator solenoid valve solenoid - exhaust. Refer to «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  6. Rotate engine clockwise using crankshaft dampener retaining bolt until the flats at the rear ends of the camshafts are pointing up. This puts the camshafts on "base circle" and will reduce their tendency to rotate from valve spring pressure when the camshaft position actuators/drive chains are removed.
  7. Loosen intake and/or exhaust camshaft position actuator retaining bolts, depending on which camshaft position actuator and/or camshaft you will be servicing. If servicing both camshaft position actuators and/or camshafts, loosen both bolts.
  8. Mark the position of the chain to the camshaft position actuator - intake.
  9. Mark the position of the chain to the camshaft position actuator - exhaust.
  10. Remove camshaft front cap bolts (1).
  11. Remove the camshaft front cap (1).
  12. Loosen wingnut (4) to open the clamping area of EN49982-1 retainer.
  13. Install EN49982-1 retainer intake side chain holder onto front cover by screwing in the thumbscrew (2) on the EN49982-1 retainer finger-tight.
  14. Tighten wingnut (4) so EN49982-1 retainer closes over and firmly grasps timing chain.
  15. EN49982-2 retainer (1) will be installed in the following steps such that it wedges between an internal rib (2) that is cast into the inside of the front cover (shown in dotted line above) and the timing chain and spring-loaded tensioner shoe (3), holding the chain in position. The wedge will be left in place during the cam position actuator and/or camshaft service.
  16. Insert the EN49982-2 retainer between the two camshaft position actuators with the "teeth" on the EN49982-2 retainer facing toward the front cover.
  17. Once the wedge portion of EN49982-2 retainer is below the camshaft position actuators, rotate the EN49982-2 retainer until the flat in the handle faces toward the intake camshaft position actuator. This orients the "teeth" toward the chain.
  18. Drop the wedge down until it begins to engage the timing chain and the belt casting (2).
  19. If possible shine a strong light down from above, between the camshaft position actuators, and see the wedge in overall position as shown in the above graphic.
  20. Using a 20 mm wrench on the cast hexagonal portion of the exhaust camshaft, rotate the camshaft toward the intake camshaft while pushing down on the handle of the EN49982-2 retainer.
  21. This rotation of the camshaft will compress the tensioner shoe (3) against the spring force of the tensioner, opening up a gap between the chain and the internal rib in the front cover. The wedge will then drop into this gap. You will feel a distinct click as the teeth engage the chain.
  22. Release the force on the wrench, allowing the spring tension to close the tensioner shoe against the wedge portion of EN49982-2 retainer. You should be able to lightly tug on the EN49982-2 retainer and it should stay in position. Repeat Steps 20 and 21 if necessary to re-insert the EN49982-2 retainer until you are certain it is in position and will stay in position.
  23. With EN49982-2 retainer in position and with the 20 mm wrench removed, there should now be some slack in the timing drive chain as indicated in the graphics shown.
  24. Do not pry against the face of the camshaft position actuators or the position actuator retaining bolt.
  25. Position a screwdriver or small pry bar between a camshaft cap and camshaft lobe. Carefully move/pry the camshafts as far as possible toward the rear/flywheel end of the engine.
  26. The EN49982-1 retainer and EN49982-2 retainer should be in position as shown, they must be left in position during the servicing of the camshaft position actuator(s) and/or camshaft(s).
  27. To remove the intake camshaft position actuator, remove the loosened retaining bolt. To remove only the exhaust camshaft position actuator, skip the steps for removing the intake camshaft position actuator. However, the EN49982-1 retainer MUST be installed as discussed even if the intake side will not be serviced or the timing of the camshaft chains will be lost.
  28. Slide the camshaft position actuator forward and off the end of the intake camshaft. The slot in the EN49982-1 retainer will allow the tool to move forward enough to disengage the camshaft position actuator from the front of the camshaft. Remove the plastic thrust washer when removing the camshaft position actuator from the end of the camshaft.
  29. Tilt the camshaft position actuator forward and out/away from the engine.
  30. Allow the chain to rest on the EN49982-1 retainer and EN49982-2 retainer in position during service.
  1. It may help to carefully pry the camshaft forward and to move the EN49982-1 retainer backward via the slot to reengage the position actuator to the camshaft. The dowel pin on the camshaft position actuator must be aligned with the slot in the camshaft nose for reassembly.
  2. Install the intake camshaft position actuator first by inserting the actuator between the timing chain and front cover. Tilt the actuator in and engage the chain while aligning the marks you made on the chain and position actuator.
  3. Ensure the camshaft position actuator fits snugly to the end of the camshaft.
  4. Install the intake camshaft position actuator retaining bolt, and lightly tighten the bolt to hold the camshaft actuator in place. DO NOT torque at this time.
  5. Install the exhaust camshaft position actuator retaining bolt, and lightly tighten the bolt to hold the camshaft actuator in place. DO NOT torque at this time.
  6. Double-check that the marks on both the intake and exhaust camshaft position actuators to ensure that they are aligned with their respective paint marks on the chain.
  7. Using a 20 mm wrench on the cast hexagonal portion of the exhaust camshaft, rotate the camshaft clockwise while pulling up on the handle of the EN49982-2 retainer.
  8. Remove EN49982-2 retainer.
  9. Release the pressure on the wrench. The timing chain should now be tight and should lose the slack the wedge was providing.
  10. Torque one or both camshaft position actuator retaining bolts to 58 N.m (43 lb ft).
  11. Unscrew the wingnut on EN49982-1 retainer to release timing chain, and then remove EN49982-1 retainer from the front cover by unscrewing the thumbscrew (2).
  12. Install camshaft front cap and bolts (1).
  13. Tighten the camshaft front cap outer bolts to 10 N.m (89 lb in).
  14. Tighten the camshaft front cap inner bolts to 10 N.m (89 lb in).
  15. Install the camshaft position actuator solenoid valve solenoid - exhaust. Refer to «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  16. Install the camshaft position actuator solenoid valve solenoid-intake. Refer to «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  17. Install the intake camshaft position sensors. Refer to «Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  18. Install the exhaust camshaft position sensor. Refer to «Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  19. Install the camshaft cover. Refer to «Camshaft Cover Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-right-side) .

Camshaft Position Actuator Replacement - Bank 2

Special Tools

EN-48313 Timing Chain Retention Tool

For equivalent regional tools, refer to Special Tools .

  1. Remove the left camshaft cover. Refer to «Camshaft Cover Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-left-side) .
  2. Remove the left intake and exhaust camshaft position sensors. Refer to «Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) , and «Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  3. Remove the left intake and exhaust camshaft position actuator solenoids. Refer to «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) , and «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  4. Rotate the crankshaft balancer using the balancer bolt until the camshafts are in a neutral (low tension) position. The camshafts will be parallel with the camshaft cover rail (1).
  5. Use a paint stick to create an alignment mark on one of the timing chain links (2) and the adjacent tooth on the exhaust camshaft position actuator (1).
  6. Use a paint stick to create an alignment mark on one of the timing chain links (3) and the adjacent tooth on the intake camshaft position actuator (4).
  7. Use an open end wrench on the hex cast into the left intake and exhaust camshafts and rotate the camshafts toward each other in order to create slack in the chain between the actuators.
  8. Unscrew the EN-48313 tool so that the legs of the tool are retracted.
  9. Insert the EN-48313 tool between the camshaft actuators, rearward of the timing chain until the bottom line that is scribed in the body of the tool (2) is adjacent to the top surface of the cylinder head (1). This is the approximate installed position.
  10. Ensure that the feet (4) on the legs of the tool are facing the front of the engine.
  11. Partially expand the legs (1, 3) of the EN-48313 tool by turning the T-shaped handle clockwise.
  12. Insert the leg of the tool (1) behind the timing chain guide (2).
  13. Continue expanding the EN-48313 tool until the legs (1, 3) contact the timing chain. Do not tighten at this time.
  14. Hand tighten the EN-48313 tool.
  15. Use an open end wrench on the hex cast into the left intake and exhaust camshafts and rotate the camshafts toward each other in order to create slack in the chain between the actuators.
  16. The EN-48313 tool is now properly installed to hold the timing chain in position.
  17. Use an open end wrench on the hex cast into the camshaft in order to prevent engine rotation when loosening the camshaft position actuator bolt.
  18. If replacing the exhaust camshaft position actuator, then remove the bolt and the actuator.
  19. If replacing the intake camshaft position actuator, then remove the bolt and the actuator.
  20. If removing both the exhaust and intake camshaft actuators, the timing chain can be draped over the EN-48313 tool once the actuators have been removed.
  21. Rotate the actuator in order to align the opening in the actuator reluctor wheel with the cam sensor boss in the front cover, to allow actuator removal.
  22. Remove the camshaft thrust washer.
  1. Align the exhaust camshaft actuator alignment mark (1) to the timing chain alignment mark (2) made during disassembly.
  2. Ensure that the intake camshaft actuator alignment mark (4) and the timing chain alignment mark (3) are also aligned.
  3. Position the exhaust camshaft actuator to the camshaft and install the actuator bolt hand tight.
  4. Remove the EN-48313 tool.
  5. If equipped, ensure the proper camshaft thrust washer is used. Use a 1.6 mm (0.063 in) thrust washer on applications that have 5 attaching screws on the back side of the camshaft position actuator (1). Use a 1.1 mm (0.043 in) thick thrust washer with yellow speckles on applications that have 4 attaching screws on the back side of the camshaft position actuator (2).
  6. Install the thrust washer, if applicable.
  7. If the exhaust camshaft position actuator has been replaced, then tighten the bolt to 58 N.m (43 lb ft).
  8. If the intake camshaft position actuator has been replaced, then tighten the bolt to 58 N.m (43 lb ft).
  9. If both the exhaust and intake has been replaced, then tighten bolt to 58 N.m (43 lb ft).
  10. Install the left intake and exhaust camshaft position actuator solenoids. Refer to «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) , and «Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  11. Install the left intake and exhaust camshaft position sensors. Refer to «Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) , and «Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  12. Install the left camshaft cover. Refer to «Camshaft Cover Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-cover-replacement-left-side) .
  13. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Setting Camshaft Timing

IMPORTANTSetting the camshaft timing is necessary whenever the camshaft drive system has been disturbed such that the relationship between any chain and sprocket has been lost. Even when only one sprocket is involved, multiple crankshaft rotations will not produce conditions where correct timing can be confirmed.

Follow the left bank secondary camshaft drive chain replacement procedures to reset the camshaft timing. Refer to Secondary Camshaft Intermediate Drive Chain Replacement - Left Side .

  1. Remove the fuel pump. Refer to «Fuel Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions__fuel-pump-replacement) .
  2. Remove the camshaft position actuators. Refer to «Camshaft Position Actuator Replacement - Bank 2»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-position-actuator-replacement-bank) .
  3. Observe the markings on the bearing caps (1). Each bearing cap is marked in order to identify its location. The markings have the following meanings: The raised feature must always be oriented toward the center of the cylinder head. The I indicates the intake camshaft. The E indicates the exhaust camshaft. The number indicates the journal position from the front of the engine.
  4. Remove the camshaft bearing cap bolts (1).
  5. Remove the camshaft bearing caps (2).
  6. Remove the camshafts (1).
  1. Ensure that the camshaft sealing rings (1) are in place in the camshaft grooves. Camshaft sealing rings must be in place below the surface of the camshaft journal in order to avoid being pinched between the cylinder head and the camshaft caps.
  2. Apply a liberal amount of lubricant (1) to the camshaft journals and the left cylinder head camshaft carriers. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) for recommended lubricant.
  3. Place the left intake (1) and left exhaust (2) camshafts in position in the left cylinder head.
  4. Position the camshaft lobes in a neutral position with the flats on the back of the camshafts up and parallel (1) with the left cylinder head camshaft cover rail.
  5. Observe the markings on the left cylinder head camshaft bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings: The raised feature (1) must always be oriented toward the center of the cylinder head. The I indicates the intake camshaft. The E indicates the exhaust camshaft. The number 2, 4, 6 indicates the cylinder position from the front of the engine.
  6. Apply a liberal amount of lubricant to the camshaft bearing caps. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) for recommended lubricant.
  7. Apply a liberal amount of lubricant to the camshaft bearing cap (1) and camshaft thrust surface (2). Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) for recommended lubricant.
  8. Install the camshaft bearing thrust cap (1) in the first journal of the left cylinder head.
  9. Install the remaining bearing caps (2) with their orientation mark toward the center of the cylinder head.
  10. Hand start all the camshaft bearing cap bolts.
  11. Tighten the camshaft bearing cap bolts in the sequence shown and tighten to 10 N.m (89 lb in).
  12. Loosen the center intake camshaft bearing cap bolts 1, 2 and the center exhaust camshaft bearing cap bolts 3, 4.
  13. Retighten the center camshaft bearing cap bolts 1, 2, 3, 4 and retighten the camshaft bearing cap bolts to 10 N.m (89 lb in).
  14. Install the camshaft position actuators. Refer to «Camshaft Position Actuator Replacement - Bank 2»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-position-actuator-replacement-bank) .
  15. Install the fuel pump. Refer to «Fuel Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions__fuel-pump-replacement) .
  1. Remove the camshaft position actuators. Refer to «Camshaft Position Actuator Replacement - Bank 1»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-position-actuator-replacement-bank) .
  2. Observe the markings on the bearing caps (1). Each bearing cap is marked in order to identify its location. The markings have the following meanings: The raised feature must always be oriented toward the center of the cylinder head. The I indicates the intake camshaft. The E indicates the exhaust camshaft. The number indicates the journal position from the front of the engine.
  3. Remove the camshaft bearing cap bolts (1).
  4. Remove the camshaft bearing caps (2).
  5. Remove the camshafts (1).
  1. Ensure that the camshaft sealing rings (1) are in place in the camshaft grooves. Camshaft sealing rings must be in place below the surface of the camshaft journal in order to avoid being pinched between the cylinder head and the camshaft caps.
  2. Apply a liberal amount of lubricant (1) to the camshaft journals and the right cylinder head camshaft carriers. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) for recommended lubricant.
  3. Place the right intake (1) and right exhaust (2) camshafts in position in the right cylinder head (3).
  4. Position the camshaft lobes in a neutral position with the flats on the back of the camshafts up and parallel (1) with the right cylinder head camshaft cover rail.
  5. Observe the markings on the right cylinder head camshaft bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings: The raised feature (1) must always be oriented toward the center of the cylinder head. The I indicates the intake camshaft. The E indicates the exhaust camshaft. The number 1, 3, 5 indicates the cylinder position from the front of the engine.
  6. Apply a liberal amount of lubricant to the camshaft bearing caps. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) for recommended lubricant.
  7. Apply a liberal amount of lubricant to the camshaft bearing cap (1) and camshaft thrust surface (2). Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) for recommended lubricant.
  8. Install the camshaft bearing thrust caps (1) in the first journal of the right cylinder head.
  9. Install the remaining bearing caps (2) with their orientation mark toward the center of the cylinder head.
  10. Hand start all the camshaft bearing cap bolts.
  11. Tighten the camshaft bearing cap bolts in the sequence shown and tighten to 10 N.m (89 lb in).
  12. Loosen the center intake camshaft bearing cap bolts (1, 2) and the center exhaust camshaft bearing cap bolts (3, 4).
  13. Retighten the center camshaft bearing cap bolts (1, 2, 3, 4) and retighten the camshaft bearing cap bolts to 10 N.m (89 lb in).
  14. Install the camshaft position actuators. Refer to «Camshaft Position Actuator Replacement - Bank 1»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__camshaft-position-actuator-replacement-bank) .
  1. Remove the applicable camshaft(s). Refer to «Camshaft Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the rocker arms.
  3. Clean and inspect the camshaft(s) and the rocker arm(s). Replace as necessary. Refer to «Camshaft Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__camshaft-cleaning-and-inspection) , and «Valve Rocker Arm Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-cleaning-and-inspection) .
  4. Clean and inspect the valve lifters and replace as necessary. Refer to «Valve Lifter Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-lifter-cleaning-and-inspection)
  1. Install the rocker arms. Refer to «Valve Rocker Arm Installation - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-installation-left) .
  2. Install the camshaft(s). Refer to «Camshaft Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  1. Remove the applicable camshaft(s). Refer to «Camshaft Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the rocker arms.
  3. Clean and inspect the camshaft(s) and the rocker arm(s). Replace as necessary. Refer to «Camshaft Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__camshaft-cleaning-and-inspection) , and «Valve Rocker Arm Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-cleaning-and-inspection) .
  4. Clean and inspect the valve lifters and replace as necessary. Refer to «Valve Lifter Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-lifter-cleaning-and-inspection)
  1. Install the rocker arms. Refer to «Valve Rocker Arm Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-installation-right) .
  2. Install the camshaft(s). Refer to «Camshaft Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  1. Remove the applicable camshafts. Refer to «Camshaft Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the rocker arms. Refer to «Valve Rocker Arm Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  3. Remove the lifters. Refer to «Valve Lifter Removal - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle)
  4. Clean and inspect the camshafts, rocker arms and lifters. Repair or replace as necessary. Refer to «Camshaft Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__camshaft-cleaning-and-inspection) , and «Valve Lifter Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-lifter-cleaning-and-inspection) .
  5. Clean and inspect the rocker arm. Refer to «Valve Rocker Arm Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-cleaning-and-inspection)
  1. Install the lifters.
  2. Install the rocker arms. Refer to «Valve Rocker Arm Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  3. Install the camshafts. Refer to «Camshaft Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  1. Remove the applicable camshaft(s). Refer to «Camshaft Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the rocker arms. Refer to «Valve Rocker Arm Removal - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Remove the lifters. Refer to «Valve Lifter Removal - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  4. Clean and inspect the camshaft(s) and the rocker arm(s) and lifter. Repair or replace as necessary. Refer to «Camshaft Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__camshaft-cleaning-and-inspection) , «Valve Lifter Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-lifter-cleaning-and-inspection) , and «Valve Rocker Arm Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-cleaning-and-inspection) .
  1. Install the lifters. Refer to «Valve Lifter Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-lifter-installation-right-side) .
  2. Install the rocker arms. Refer to «Valve Rocker Arm Installation - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__valve-rocker-arm-installation-right) .
  3. Install the applicable camshaft(s). Refer to «Camshaft Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Valve Stem Oil Seal and Valve Spring Replacement - Left Side

Special Tools

  1. EN-39313 Spark Plug Port Adapter
  2. EN-46106 Flywheel Holding Tool
  3. EN-46110 On-Vehicle Valve Spring Compressor
  4. EN-46116 Valve Stem Seal Remover/Installer

For equivalent regional tools, refer to Special Tools .

Note. This procedure is not used in Brazil.

  1. Remove the rocker arms. Refer to «Valve Rocker Arm Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the starter motor. Refer to «Starter Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  3. Install the EN-46106 tool in order to prevent crankshaft rotation.
  4. Remove the spark plug from the applicable cylinder. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  5. Install the EN-39313 adapter to the applicable cylinder.
  6. Connect the EN-39313 adapter to a compressed air source.
  7. Install the EN-46110 compressor above the applicable cylinder as shown.
  8. Tighten the EN-46110 compressor nut (2).
  9. Remove the valve keepers.
  10. Loosen the EN-46110 compressor nut.
  11. Remove the valve spring retainer.
  12. Remove the valve spring.
  13. Use the EN-46116 remover/installer (1) in order to remove the valve stem seal (2).
  1. Use the EN-46116 remover/installer (1) in order to install the valve stem seal (2).
  2. Install the valve spring.
  3. Install the valve spring retainer.
  4. Install the EN-46110 compressor above the applicable valve spring as shown. Tighten the EN-46110 compressor nut (2).
  5. Install the valve spring keepers.
  6. Remove the EN-46110 compressor.
  7. Disconnect the EN-39313 adapter from the compressed air source.
  8. Remove the EN-39313 adapter.
  9. Install the spark plugs. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  10. Install the rocker arms. Refer to «Valve Rocker Arm Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  11. Remove the EN-46106 tool in order to prevent crankshaft rotation.
  12. Install the starter motor. Refer to «Starter Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .

Valve Stem Oil Seal and Valve Spring Replacement - Right Side

Special Tools

  1. EN-39313 Spark Plug Port Adapter
  2. EN-46106 Flywheel Holding Tool
  3. EN-46110 On-Vehicle Valve Spring Compressor
  4. EN-46116 Valve Stem Seal Remover/Installer

For equivalent regional tools, refer to Special Tools .

Note. This procedure is not used in Brazil.

  1. Remove the rocker arms. Refer to «Valve Rocker Arm Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the starter motor. Refer to «Starter Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  3. Install the EN-46106 tool in order to prevent crankshaft rotation.
  4. Remove the spark plug from the applicable cylinder. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  5. Install the EN-39313 adapter to the applicable cylinder.
  6. Connect the EN-39313 adapter to a compressed air source.
  7. Install the EN-46110 compressor above the applicable cylinder as shown.
  8. Tighten the EN-46110 compressor nut (2).
  9. Remove the valve keepers.
  10. Loosen the EN-46110 compressor nut.
  11. Remove the valve spring retainer.
  12. Remove the valve spring.
  13. Use the EN-46116 remover/installer (1) in order to remove the valve stem seal (2).
  1. Use the EN-46116 remover/installer (1) in order to install the valve stem seals (2).
  2. Install the valve spring.
  3. Install the valve spring retainer.
  4. Install the EN-46110 compressor above the applicable valve spring as shown. Tighten the EN-46110 compressor nut (2).
  5. Install the valve spring keepers.
  6. Remove the EN-46110 compressor.
  7. Disconnect the EN-39313 adapter from the compressed air source.
  8. Remove the EN-39313 adapter.
  9. Install the spark plugs. Refer to «Spark Plug Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  10. Install the rocker arms . Refer to «Valve Rocker Arm Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  11. Remove the EN-46106 tool.
  12. Install the starter motor. Refer to «Starter Replacement (LFX)»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .

Cylinder Head Replacement - Left Side

Special Tools

EN-45059 Angle Meter

For equivalent regional tools, refer to Special Tools .

  1. Remove the left bank secondary timing chain. Refer to «Secondary Camshaft Intermediate Drive Chain Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the fuel pump. Refer to «Fuel Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions__fuel-pump-replacement) .
  3. Remove the catalytic converter. Refer to «Catalytic Converter Replacement - Left Side (LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) .
  4. Remove the oil level indicator tube. Refer to «Oil Level Indicator Tube Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  5. Remove the oil filter adapter. Refer to «Oil Filter Adapter Replacement (w/o KC4)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) , «Oil Filter Adapter Replacement (w/KC4)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  6. Remove the secondary air injection pump, if equipped. Refer to «Secondary Air Injection Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  7. Remove the 2 front M8 left cylinder head bolts (1).
  8. Remove the left cylinder head bolts (2).
  9. Remove the left cylinder head (3).
  10. Remove the ground wire bolt and ground wire.
  11. Disconnect and reposition harness as necessary.
  12. Remove and discard the left cylinder head gasket (1).
  13. Clean and inspect the cylinder head and the engine block sealing surfaces. Refer to «Cylinder Head Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__cylinder-head-cleaning-and-inspection) , and «Engine Block Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-block-cleaning-and-inspection) .
  14. Disassemble the cylinder head as necessary. Refer to «Cylinder Head Disassemble (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__cylinder-head-disassemble-lfx) .
  1. Assemble the cylinder head as necessary. Refer to «Cylinder Head Assemble (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__cylinder-head-assemble-lfx) .
  2. Ensure the cylinder head locating pins are securely mounted in the cylinder block deck face.
  3. Install a NEW left cylinder head gasket (1) using the deck face locating pins for retention.
  4. Align the left cylinder head (3) with the deck face locating pins.
  5. Place the left cylinder head in position on the deck face.
  6. Install the NEW M11 cylinder head bolts (1). Tighten the M11 cylinder head bolts a first pass in sequence to 30 N.m (22 lb ft). Tighten the M11 cylinder head bolts a second pass in sequence an additional 150 degrees using the EN-45059 meter.
  7. Install the 2 NEW front M8 left cylinder head bolts (2). Tighten the M8 cylinder head bolts a first pass to 15 N.m (11 lb ft). Tighten the M8 cylinder head bolts a second pass in sequence an additional 75 degrees using the EN-45059 meter.
  8. Install the secondary air injection pump, if equipeed. Refer to «Secondary Air Injection Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  9. Install the oil level indicator tube. Refer to «Oil Level Indicator Tube Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  10. Install the oil filter adapter. Refer to «Oil Filter Adapter Replacement (w/o KC4)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) , «Oil Filter Adapter Replacement (w/KC4)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  11. Install the fuel pump. Refer to «Fuel Pump Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions__fuel-pump-replacement) .
  12. Install the catalytic converter. Refer to «Catalytic Converter Replacement - Left Side (LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) .
  13. Install the left bank secondary timing chain. Refer to «Secondary Camshaft Intermediate Drive Chain Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Cylinder Head Replacement - Right Side

Special Tools

EN-45059 Angle Meter

For equivalent regional tools, refer to Special Tools .

  1. Remove the right bank secondary timing chain. Refer to «Secondary Camshaft Intermediate Drive Chain Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the catalytic converter . Refer to «Catalytic Converter Replacement - Right Side (Service-LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) .
  3. Remove the right cylinder head bolts (1).
  4. Remove the right cylinder head (2).
  5. Remove Ground wire and harness and position aside.
  6. Remove and discard the cylinder head gasket (1).
  7. Clean and inspect the cylinder head and the engine block sealing surfaces. Refer to «Cylinder Head Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__cylinder-head-cleaning-and-inspection) , and «Engine Block Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-block-cleaning-and-inspection) .
  8. Disassemble the cylinder head as necessary. Refer to «Cylinder Head Disassemble (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__cylinder-head-disassemble-lfx) .
  1. Assemble the cylinder head as necessary. Refer to «Cylinder Head Assemble (LF1, LFW or LFX)»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__cylinder-head-assemble-lfx) .
  2. Ensure the cylinder head locating pins are securely mounted in the cylinder block deck face.
  3. Install a NEW right cylinder head gasket (1) using the deck face locating pins for retention.
  4. Align the right cylinder head (2) with the deck face locating pins.
  5. Place the right cylinder head in position on the deck face.
  6. Install the NEW M11 cylinder head bolts (1). Tighten the M11 cylinder head bolts a first pass in sequence to 30 N.m (22 lb ft). Tighten the M11 cylinder head bolts a second pass in sequence an additional 150 degrees using the EN-45059 meter.
  7. Install the NEW M8 cylinder head bolt (2). Tighten the M8 cylinder head bolt a first pass to 15 N.m (11 lb ft). Tighten the M8 cylinder head bolt a second pass an additional 75 degrees using the EN-45059 meter.
  8. Install the catalytic converter . Refer to «Catalytic Converter Replacement - Right Side (Service-LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) .
  9. Install the right bank secondary timing chain. Refer to «Secondary Camshaft Intermediate Drive Chain Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Scheme 33

Scheme 33: Automatic Transmission Flex Plate Replacement
CalloutComponent Name
Preliminary Procedure Remove the transmission. Refer to Transmission Replacement . Special Tools EN 45059 Angle Meter EN 46106 Flywheel Holding Tool For equivalent regional tools. Refer to Special Tools .
1Automatic Transmission Flex Plate Fastener (Qty: 8) CAUTION: Refer to Fastener Caution . Procedure New bolts must be used whenever removing the automatic transmission flex plate. Tighten 30 (22 lb ft) plus 45 degrees
2Automatic Transmission Flex Plate Spacer
3Automatic Transmission Flex Plate Procedure Clean and inspect the automatic transmission flex plate. Refer to Automatic Transmission Flex Plate Cleaning and Inspection .
CAUTION
Refer to Fastener Caution .

Automatic Transmission Flex Plate Replacement

Crankshaft Rear Oil Seal and Housing Replacement

Special Tools

  1. EN-42183 Handle
  2. EN-46109 Guide Pin Set
  3. EN-47839 Crankshaft Rear Oil Seal Installation Tool

For equivalent regional tools, refer to Special Tools .

  1. Remove the engine. Refer to «Engine Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the flex plate. Refer to «Automatic Transmission Flex Plate Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  3. Remove the oil pan. Refer to «Oil Pan Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__oil-pan-replacement) .
  4. Remove the crankshaft rear oil seal and housing bolts (1).
  5. Use the pry points located at the edge of the crankshaft rear oil seal housing to separate the RTV sealant.
  6. Remove and discard the crankshaft rear oil seal and housing (1). Refer to «Crankshaft Rear Oil Seal and Housing Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__crankshaft-rear-oil-seal-and-housing) .
  1. Install the 6 mm (0.236 in) guides from the EN-46109 pin set into the 2 crankshaft rear oil seal housing corner bolt holes of the engine block
  2. Install the EN-47839 tool with the EN-42183 handle (1, 2) onto the rear of the crankshaft flange.
  3. Place a 3 mm (0.118 in) bead of RTV sealant (1) to the NEW crankshaft rear oil seal housing as shown (1). Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-specifications__adhesives-fluids-lubricants-and-sealers) , for recommended sealant.
  4. Install the crankshaft rear oil seal housing (1) to the engine block.
  5. Remove the EN-46109 pin set 6 mm (0.236 in) guides (1) from the engine block.
  6. Install the crankshaft rear oil seal housing bolts (1).
  7. Tighten the crankshaft rear oil seal housing bolts in sequence and tighten to 10 N.m (89 lb in).
  8. Remove the EN-47839 tool and EN-42183 handle (1, 2) from the crankshaft flange.
  9. Install the oil pan. Refer to «Oil Pan Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__oil-pan-replacement) .
  10. Install the flex plate. Refer to «Automatic Transmission Flex Plate Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  11. Install the engine. Refer to «Engine Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Scheme 34

Scheme 34: Engine Oil Cooler Replacement
CalloutComponent Name
Preliminary Procedure Remove the air conditioning condenser. Refer to Air Conditioning Condenser Replacement (LCV with MYA, VO3, LFX with MYA, V03 without KC4) .
1Engine Oil Cooler Hose Retainer (QTY:2) NOTE: Inlet hose shown, outlet hose similar.
2Engine Oil Cooler Hose (QTY:2) NOTE: Inlet hose shown, outlet hose similar.
3Engine Oil Cooler Fastener (QTY:2) Tighten 9 N.m (80 lb in)
4Engine Oil Cooler Procedure Lift the oil cooler up to remove from cradle then remove from bottom of vehicle.
NOTE
Inlet hose shown, outlet hose similar.
NOTE
Inlet hose shown, outlet hose similar.

Engine Oil Cooler Replacement

Scheme 35

Scheme 35: Engine Oil Cooler Bracket Replacement - Left Side
CalloutComponent Name
Preliminary Procedures Remove the air conditioning condenser. Refer to Air Conditioning Condenser Replacement (LCV with MYA, VO3, LFX with MYA, V03 without KC4) . Remove the transmission cooler. Refer to Transmission Fluid Auxiliary Cooler Replacement (LFX With KC4) . Remove the engine oil cooler. Refer to Engine Oil Cooler Replacement .
1Engine Oil Cooler Bracket Fastener CAUTION: Refer to Fastener Caution . Tighten 9 (80 lb in)
2Engine Oil Cooler Bracket - Left Side Procedure Lift upward on the bracket to disengage bracket from the radiator retainer.
CAUTION
Refer to Fastener Caution .

Engine Oil Cooler Bracket Replacement - Left Side

Scheme 36

Scheme 36: Engine Oil Cooler Bracket Replacement - Right Side
CalloutComponent Name
Preliminary Procedures Remove the air conditioning condenser. Refer to Air Conditioning Condenser Replacement (LCV with MYA, VO3, LFX with MYA, V03 without KC4) . Remove the transmission cooler. Refer to Transmission Fluid Auxiliary Cooler Replacement (LFX With KC4) . Remove the engine oil cooler. Refer to Engine Oil Cooler Replacement .
1Engine Oil Cooler Bracket Fastener CAUTION: Refer to Fastener Caution . Tighten 9 (80 lb in)
2Engine Oil Cooler Bracket - Right Side Procedure Lift upward on the bracket to disengage bracket from the radiator retainer.
CAUTION
Refer to Fastener Caution .

Engine Oil Cooler Bracket Replacement - Right Side

Scheme 37

Scheme 37: Engine Oil Cooler Inlet and Outlet Hose Replacement
CalloutComponent Name
Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the engine compartment lower noise shield. Refer to Engine Compartment Lower Noise Shield Replacement .
1Engine Oil Cooler Hose Retainer
2Engine Oil Cooler Inlet Hose
3Engine Oil Cooler Hose Retainer
4Engine Oil Cooler Outlet Hose
5Engine Oil Cooler Hose Retainer
6Engine Oil Cooler Inlet Hose
7Engine Oil Cooler Outlet Hose Procedure Disconnect the outlet hose in the same manner as the inlet hose.
8Engine Oil Cooler Inlet and Outlet Hose Clamp Fastener CAUTION: Refer to Fastener Caution . Tighten 9 (80 lb in)
9Engine Oil Cooler Inlet and Outlet Hose Clamp Fastener Tighten 9 (80 lb in)
10Engine Oil Cooler Inlet and Outlet Hose Procedure Remove the hose assembly from bottom of vehicle. NOTE: Cap the open ends of the hose to prevent dirt from entering the hose assembly.
CAUTION
Refer to Fastener Caution .
NOTE
Cap the open ends of the hose to prevent dirt from entering the hose assembly.

Engine Oil Cooler Inlet and Outlet Hose Replacement

Scheme 38

Scheme 38: Engine Oil Cooler Inlet Hose Connector Fitting Replacement
CalloutComponent Name
Preliminary Procedure Disconnect the engine oil cooler inlet hose. Refer to Engine Oil Cooler Inlet and Outlet Hose Replacement .
1Inlet Hose Fitting Seal Ring NOTE: Replace the seal whenever fitting is removed.
2Engine Oil Cooler Inlet Hose Fitting Fastener CAUTION: Refer to Component Fastener Tightening Caution . Tighten 35 (26 lb ft)
NOTE
Replace the seal whenever fitting is removed.

Engine Oil Cooler Inlet Hose Connector Fitting Replacement

Scheme 39

Scheme 39: Engine Oil Cooler Outlet Hose Connector Fitting Replacement
CalloutComponent Name
Preliminary Procedure Disconnect the engine oil cooler outlet hose. Refer to Engine Oil Cooler Inlet and Outlet Hose Replacement .
1Outlet Hose Fitting Seal Ring NOTE: Replace the seal whenever fitting is removed.
2Engine Oil Cooler Outlet Hose Fitting Fastener CAUTION: Refer to Component Fastener Tightening Caution . Tighten 35 (26 lb ft)
NOTE
Replace the seal whenever fitting is removed.

Engine Oil Cooler Outlet Hose Connector Fitting Replacement

  1. Remove the primary timing chain. Refer to «Primary Camshaft Drive Chain and Sprockets Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the crankshaft sprocket. Refer to «Crankshaft Sprocket Removal»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle) .
  3. Remove the oil pump bolts and the oil pump.
  1. Install the oil pump and bolts. Refer to «Oil Pump Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__oil-pump-installation)
  2. Install the crankshaft sprocket. Refer to «Crankshaft Sprocket Installation»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__crankshaft-sprocket-installation) .
  3. Install the primary timing chain. Refer to «Primary Camshaft Drive Chain and Sprockets Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Oil Pan Replacement

Special Tools

EN 46109 Guide Pin Set.

For equivalent regional tools, refer to Special Tools .

  1. Drain the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Remove the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  3. Remove the oil level indicator tube. Refer to «Oil Level Indicator Tube Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  4. Remove the drivetrain and front suspension frame . Refer to «Drivetrain and Front Suspension Frame Removal and Installation»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody__drivetrain-and-front-suspension-frame-removal) .
  5. If equipped with AWD remove the front differential carrier. Refer to «Front Differential Carrier Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/differentials-drive-axles/#front-drive-axle__front-differential-carrier-assembly-replacement) .
  6. Remove the engine mount bracket-to-oil pan bolts. Refer to «Engine Mount Bracket Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) , and «Engine Mount Bracket Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  7. Remove the fastener (1) retaining the transmission lines (2) to the oil pan.
  8. Position the transmission lines out of the way.
  9. Disconnect the oil level sensor.
  10. Remove the front cover bolts (1).
  11. Remove the transmission to oil pan bolts (1).
  12. Remove the oil pan bolts (1) and (2).
  13. Remove the oil pan (1).
  14. If necessary, disassemble the oil pan. Refer to «Oil Pan Disassemble»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__oil-pan-disassemble) .
  15. Clean and inspect the oil pan. Refer to «Oil Pan Cleaning and Inspection»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__oil-pan-cleaning-and-inspection)
  1. If the oil pan was disassembled, assemble the oil pan. Refer to «Oil Pan Assemble»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__oil-pan-assemble) .
  2. Install the 8 mm (0.315 in) guides from the EN 46109 set into the center oil pan rail bolt hole on each side of the engine block.
  3. Place a 3 mm (0.118 in) bead of RTV sealant, on the block pan rail and the crankshaft rear oil seal housing (1).
  4. Install oil pan (1)
  5. Remove the EN 46109 set 8 mm (0.315 in) guides from the engine block.
  6. Loosely install the oil pan bolts (1) and (2).
  7. Tighten the oil pan bolts in sequence shown. Tighten the 8 mm bolts (1-11) to 25 N.m (18 lb ft). Tighten the 6 mm bolts (12, 13) to 10 N.m (89 lb in).
  8. Install NEW front cover bolts (1) and tighten the bolts to 20 N.m (14 lb ft) plus 60°.
  9. Install the transmission to oil pan bolts (1) and tighten the bolts to 50 N.m (37 lb ft).
  10. Connect the oil level sensor.
  11. Reposition the transmission lines to the oil pan (2).
  12. Install the fastener (1) retaining the transmission lines (2) to the oil pan and tighten the fastener to 22 N.m (16 lb ft).
  13. Install the engine mount bracket-to-oil pan bolts. Refer to «Engine Mount Bracket Replacement - Right Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) , and «Engine Mount Bracket Replacement - Left Side»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  14. If equipped with AWD Install the front differential carrier. Refer to «Front Differential Carrier Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/differentials-drive-axles/#front-drive-axle__front-differential-carrier-assembly-replacement) .
  15. Install the drivetrain and front suspension frame . Refer to «Drivetrain and Front Suspension Frame Removal and Installation»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody__drivetrain-and-front-suspension-frame-removal) .
  16. Install the oil level indicator tube. Refer to «Oil Level Indicator Tube Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  17. Install the engine front cover. Refer to «Engine Front Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__engine-front-cover-replacement) .
  18. Fill the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .

Scheme 40

Scheme 40: Engine Oil Pressure Sensor and/or Switch Replacement
CalloutComponent Name
Preliminary Procedure Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
1Engine Oil Pressure Sensor and/or Switch CAUTION: Refer to Component Fastener Tightening Caution . Procedure Disconnect the oil pressure sensor electrical connector. Tighten 20 N.m (15 lb ft) Special Tools EN-41712 Oil Pressure Switch Socket For equivalent regional tools, refer to Special Tools .

Engine Oil Pressure Sensor and/or Switch Replacement

  1. Remove the oil pan. Refer to «Oil Pan Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__oil-pan-replacement) .
  2. Remove the oil pan scraper bolts (2).
  3. Remove the oil pan scraper (1).
  4. Remove the oil suction pipe bolts (3).
  5. Remove the oil suction pipe (2).
  6. Remove the oil suction pipe retaining bolts (1).
  7. Remove the engine oil level switch clip (4).
  8. Remove the engine oil level switch bolts (1).
  9. Remove the engine oil level switch (2).
  10. Remove the engine oil level switch seal (3).
  1. Install the NEW engine oil level switch seal (3).
  2. Install the engine oil level switch (2).
  3. Install the engine oil level switch bolts (1) and tighten to 10 (89 lb in).
  4. Install NEW engine oil level switch clip (4).
  5. inspect the oil suction pipe seal (1) and replace if damaged.
  6. Install the oil suction pipe (2).
  7. Install the oil suction pipe retaining bolts (1) and tighten to 10 (89 lb in).
  8. Install the oil suction pipe bolts (3) and tighten to 10 (89 lb in).
  9. Install the oil pan scraper (1).
  10. Install the oil pan scraper bolts (2) and tighten to 10 (89 lb in).
  11. Install the oil pan. Refer to «Oil Pan Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__oil-pan-replacement) .
  1. Remove the oil pan. Refer to «Oil Pan Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__oil-pan-replacement) .
  2. Remove the oil pan scraper bolts (2).
  3. Remove the oil pan scraper (1).
  4. Remove the oil suction pipe bolts (3).
  5. Remove the oil suction pipe (2).
  6. Remove the oil suction pipe retaining bolts (1).
  7. Remove and discard the oil suction pipe seal (1).
  1. Install the NEW oil suction pipe seal (1).
  2. Install the oil suction pipe (2).
  3. Install the oil suction pipe retaining bolts (1) and tighten to 10 N.m (89 lb in).
  4. Install the oil suction pipe bolts (3) and tighten to 10 N.m (89 lb in).
  5. Install the oil pan scraper (1).
  6. Install the oil pan scraper bolts (2) and tighten to 10 N.m (89 lb in).
  7. Install the oil pan. Refer to «Oil Pan Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle__oil-pan-replacement) .
  1. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  2. Recover the refrigerant. Refer to «Refrigerant Recovery and Recharging (R-134a)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning__refrigerant-recovery-and-recharging-r-134a) .
  3. Drain the cooling system. Refer to «Cooling System Draining and Filling (Static Fill)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-static) , «Cooling System Draining and Filling (GE 47716)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-ge) .
  4. Remove the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  5. Remove the intake manifold insulator (2). Refer to «Intake Manifold Insulator Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  6. Remove the front compartment front side shield (2). Refer to «Front Compartment Front Sight Shield Replacement»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  7. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  8. Remove the front compartment fuse block (2). Refer to «Front Compartment Fuse Block Housing Replacement»(/cadillac/ats/i-2012-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) .
  9. Remove the battery terminals (1) from the jump start post junction block.
  10. Disconnect the ECM connectors (2).
  11. Reposition the engine harness (3) on the engine.
  12. Disconnect the radiator inlet hose (2) from the water outlet.
  13. Disconnect the coolant air bleed hose (1) from the water outlet and position aside.
  14. Disconnect the radiator outlet hose (2) from the engine.
  15. Disconnect the heater inlet hose (1) from the heater core tube.
  16. Disconnect the heater outlet hose from the heater core tube.
  17. Disconnect the heater outlet to surge tank hose.
  18. Disconnect the fuel line (2) from the fuel pump.
  19. Disconnect the evaporative emission purge solenoid hose.
  20. Remove the vacuum booster check valve (3) from the vacuum booster.
  21. Using mechanics wire, support the radiator assembly to the vehicle body.
  22. Disconnect the A/C lines from the condenser. Position the lines aside.
  23. Disconnect and reposition harnesses as necessary.
  24. Disconnect the transmission fluid cooler lines from the radiator. Refer to «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LFX Without KC4)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) , «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LFX With KC4)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) , «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LCV, LFX, LTG with VO3)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) , «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LCV, LFX, LTG without VO3)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) .
  25. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/ats/i-2012-2014/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) .
  26. Remove the front air deflector. Refer to «Front Air Deflector Replacement»(/cadillac/ats/i-2012-2014/remont/exterior-body-panels/#bumpers-and-fascias) .
  27. Remove the engine compartment lower noise shield. Refer to «Engine Compartment Lower Noise Shield Replacement»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  28. Disconnect the A/C lines from the compressor. Position the lines aside.
  29. If equipped with an external engine oil cooler, disconnect the oil cooler inlet (2) and oil cooler outlet (3) hoses from the engine oil cooler.
  30. Prepare the transmission for removal. Refer to one of the following procedures: For automatic transmission, refer to «Transmission Replacement»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) . For manual transmission, refer to «Transmission Replacement»(ref-620502-S18808528732014060500000) .
  31. If equipped with AWD, prepare the transfer case for removal. Refer to «Transfer Case Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/transfer-case/#transfer-case-bw-4474) .
  32. Remove the catalytic converter(s). Refer to «Catalytic Converter Replacement - Left Side (LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) , and «Catalytic Converter Replacement - Right Side (Service-LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) .
  33. Secure the vehicle body to the vehicle hoist using suitable straps or binders.
  34. Remove the drivetrain and front suspension frame with the powertrain attached. Refer to «Drivetrain and Front Suspension Frame Removal and Installation»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody__drivetrain-and-front-suspension-frame-removal) .
  35. Lower the powertrain onto a suitable support table.
  36. Secure the powertrain to the support table using straps and binders.
  37. With the aid of an assistant, carefully raise the body from the frame.
  38. Ensure when raising the body the following items are clear from the frame: Vacuum lines Steering knuckles Electrical wiring harnesses Oil cooler lines
  39. Separate the engine from the transmission. Refer to «Transmission Replacement»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) .
  40. Disconnect electrical connectors as necessary.
  1. Install the engine to the transmission. Refer to «Transmission Replacement»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) .
  2. Place the powertrain and frame assembly on the engine support table.
  3. Secure the powertrain to the support table using straps and binders.
  4. With the aid of an assistant, carefully lower the body onto the powertrain assembly.
  5. Ensure when lowering the body the following items are clear from the frame: Vacuum lines Steering knuckles Electrical wiring harnesses Oil cooler lines
  6. Install the drivetrain and front suspension frame with the powertrain attached. Refer to «Drivetrain and Front Suspension Frame Removal and Installation»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody__drivetrain-and-front-suspension-frame-removal) .
  7. Remove the engine support table.
  8. Install the catalytic converter(s). Refer to «Catalytic Converter Replacement - Left Side (LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) , and «Catalytic Converter Replacement - Right Side (Service-LFX)»(/cadillac/ats/i-2012-2014/remont/exhaust/#engine-exhaust-system) .
  9. If equipped with AWD, complete installation of the transfer case. Refer to «Transfer Case Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/transfer-case/#transfer-case-bw-4474) .
  10. Complete installation of the transmission. Refer to one of the following procedures: For automatic transmission, refer to «Transmission Replacement»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) . For manual transmission, refer to «Transmission Replacement»(ref-620502-S18808528732014060500000) .
  11. If equipped with an external engine oil cooler, connect the oil cooler inlet (2) and oil cooler outlet (3) hoses to the engine oil cooler.
  12. Connect the A/C lines to the compressor.
  13. Install the front air deflector. Refer to «Front Air Deflector Replacement»(/cadillac/ats/i-2012-2014/remont/exterior-body-panels/#bumpers-and-fascias) .
  14. Install the transmission fluid cooler lines to the radiator. Refer to «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LFX Without KC4)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) , «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LFX With KC4)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) , «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LCV, LFX, LTG with VO3)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) , «Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LCV, LFX, LTG without VO3)»(/cadillac/ats/i-2012-2014/remont/automatic-trans/#automatic-transmission-6l45-mya-repair-instructions-on-vehicle) .
  15. Install the engine compartment lower noise shield. Refer to «Engine Compartment Lower Noise Shield Replacement»(/cadillac/ats/i-2012-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  16. Lower the vehicle.
  17. Connect the heater inlet hose (1) to the heater core tube.
  18. Connect the heater outlet hose to the heater core tube.
  19. Connect the heater outlet to surge tank hose.
  20. Connect the fuel line (2) to the fuel pump.
  21. Install the vacuum booster check valve (3) to the vacuum booster.
  22. Connect the evaporative emission purge solenoid hose.
  23. Remove mechanics wire that supported the radiator assembly to the vehicle body.
  24. Connect the A/C lines from the condenser.
  25. Reposition and connect harnesses as necessary.
  26. Connect the radiator outlet hose (2) to the engine.
  27. Connect the radiator inlet hose (2) to the water outlet.
  28. Connect the coolant air bleed hose (1) to the water outlet.
  29. Install the battery terminals (1) to the jump start post junction block.
  30. Connect the ECM connectors (2).
  31. Install the front compartment fuse block (2). Refer to «Front Compartment Fuse Block Housing Replacement»(/cadillac/ats/i-2012-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) .
  32. Install the front compartment front side shield (2). Refer to «Front Compartment Front Sight Shield Replacement»(/cadillac/ats/i-2012-2014/remont/exteriorinterior-trim/#bolted-exterior-body-panels-and-closures) .
  33. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  34. Install the intake manifold insulator (2). Refer to «Intake Manifold Insulator Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  35. Install the intake manifold cover (2). Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  36. Connect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/ats/i-2012-2014/remont/body-electrical/#battery-charging-system-and-starting-system) .
  37. Fill the cooling system. Refer to «Cooling System Draining and Filling (Static Fill)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-static) , «Cooling System Draining and Filling (GE 47716)»(/cadillac/ats/i-2012-2014/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-and-filling-ge) .
  38. If the engine is replaced with a new engine or has been overhauled, perform the Engine Prelubing procedure. Refer to «Engine Prelubing»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-off-vehicle__engine-prelubing) .
  39. Charge the A/C system. Refer to «Refrigerant Recovery and Recharging (R-134a)»(/cadillac/ats/i-2012-2014/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning__refrigerant-recovery-and-recharging-r-134a) .
  40. Perform the throttle learn procedure. Refer to «Q38 Throttle Body: Throttle/Idle Learn»(/cadillac/ats/i-2012-2014/remont/testing-diagnostics/#engine-controlsfuel-36l-lfx-repair-instructions) .
  1. Remove the intake manifold cover. Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  2. Place a drain pan underneath the oil filter.
  3. Remove the oil filter cap (1) and seal (2).
  4. Remove and properly dispose of the oil filter insert (3).
  5. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/ats/i-2012-2014/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) .
  6. Place a suitable drain pan below the oil pan drain plug.
  7. Remove the oil pan drain plug (1) and seal (2).
  8. Allow the oil to drain completely.
  1. Install seal (2) and oil pan drain plug (1) and tighten to 25 N.m (18 lb ft).
  2. Remove the drain pan.
  3. Lower the vehicle.
  4. Lubricate the oil filter cap threads with clean engine oil.
  5. Install a NEW oil filter (3).
  6. Install seal (2) and tighten the oil filter cap (1) to 25 N.m (18 lb ft).
  7. Fill the engine with the appropriate oil type and quantity. Refer to «Fluid and Lubricant Recommendations»(/cadillac/ats/i-2012-2014/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) .
  8. Install the intake manifold cover. Refer to «Intake Manifold Cover Replacement»(/cadillac/ats/i-2012-2014/remont/mechanical/#engine-mechanical-36l-lfx-repair-instructions-on-vehicle) .
  9. Reset the oil life. Refer to «GM Oil Life System Resetting»(/cadillac/ats/i-2012-2014/remont/lubrication-system/#maintenance-and-lubrication__gm-oil-life-system-resetting)

See also:
Air Cleaner Outlet Duct Replacement
Fastener Caution
Generator Replacement (LFX)
Front Compartment Front Sight Shield Replacement
Radiator Surge Tank Replacement (LFX)
Special Tools
Lifting and Jacking the Vehicle
Engine Compartment Lower Noise Shield Replacement
Component Fastener Tightening Caution
Intake Manifold Cleaning and Inspection (LF1, LFW or LFX)
Intake Manifold Disassemble (LF1, LFW or LFX)
Intake Manifold Assemble (LF1, LFW or LFX)
Air Conditioning Compressor Replacement (LFX)
Water Pump Replacement (LFX)
Cooling System Draining and Filling (Static Fill)
Cooling System Draining and Filling (GE 47716)
Engine Front Cover Removal
Engine Front Cover Disassemble
Engine Front Cover Cleaning and Inspection
Engine Front Cover Assemble
Engine Front Cover Installation
Secondary Timing Chain Tensioner Removal - Left Side
Secondary Timing Chain Tensioner Installation - Left Side
Timing Chain Idler Sprocket Removal - Left Side
Timing Chain Idler Sprocket Installation - Left Side
Timing Chain Alignment Diagram
Primary Camshaft Intermediate Drive Chain Tensioner Removal
Primary Timing Chain Guide Removal - Upper
Primary Timing Chain Guide Installation - Upper
Torque Reaction Against Timing Drive Chain Caution
Fuel Pump Replacement
Adhesives, Fluids, Lubricants, and Sealers
Camshaft Cleaning and Inspection
Valve Rocker Arm Cleaning and Inspection
Valve Lifter Cleaning and Inspection
Valve Rocker Arm Installation - Left Side
Valve Rocker Arm Installation - Right Side
Valve Lifter Installation - Right Side
Catalytic Converter Replacement - Left Side (LFX)
Cylinder Head Cleaning and Inspection
Engine Block Cleaning and Inspection
Cylinder Head Disassemble (LF1, LFW or LFX)
Cylinder Head Assemble (LF1, LFW or LFX)
Transmission Replacement
Crankshaft Rear Oil Seal and Housing Removal
Oil Pump Installation
Crankshaft Sprocket Installation
Drivetrain and Front Suspension Frame Removal and Installation
Front Differential Carrier Assembly Replacement
Oil Pan Disassemble
Oil Pan Cleaning and Inspection
Oil Pan Assemble
Refrigerant Recovery and Recharging (R-134a)
Front Compartment Fuse Block Housing Replacement
Front Air Deflector Replacement
Transfer Case Assembly Replacement
Engine Prelubing
Fluid and Lubricant Recommendations
GM Oil Life System Resetting
Drive Belt Replacement
Crankshaft Balancer Replacement
Camshaft Cover Replacement - Left Side
Camshaft Cover Replacement - Right Side
Engine Front Cover Replacement
Camshaft Position Actuator Replacement - Bank 2
Oil Pan Replacement