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Engine Mechanical - 4.6l (lh2) - 2 of 5 Cadillac XLR I

Mechanical ~8613 words

Removal Procedure

  1. Remove the left camshafts. Refer to «Camshaft Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-left-side) .
  2. Remove the camshaft followers.
  3. Clean and inspect the rocker arms. Refer to «Valve Rocker Arms Cleaning and Inspection»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-3-of-5__valve-rocker-arms-cleaning-and-inspection) .

Installation Procedure

  1. Apply a liberal amount of lubricant to the roller pivot pocket (2) and valve slot areas (1) of the camshaft followers. Refer to «Sealers, Adhesives, and Lubricants»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction__sealers-adhesives-and-lubricants) for the correct part number.
  2. Place the camshaft followers in position on the valve tip (1) and the SHLA (1). The rounded head of the follower goes on the SHLA, while the flat end goes on the valve tip.
  3. Install the left camshafts. Refer to «Camshaft Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-left-side) .
  1. Remove the right camshafts. Refer to «Camshaft Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-right-side) .
  2. Remove the camshaft followers.
  3. Clean and inspect the rocker arms. Refer to «Valve Rocker Arms Cleaning and Inspection»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-3-of-5__valve-rocker-arms-cleaning-and-inspection) .
  1. Apply a liberal amount of lubricant to the roller pivot pocket (2) and valve slot areas (1) of the camshaft followers. Refer to «Sealers, Adhesives, and Lubricants»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction__sealers-adhesives-and-lubricants) for the correct part number.
  2. Place the camshaft followers in position on the valve tip (1) and the SHLA (1). The rounded head of the follower goes on the SHLA, while the flat end goes on the valve tip.
  3. Install the right camshafts. Refer to «Camshaft Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-right-side) .
  1. Remove the left valve rocker arms. Refer to «Valve Rocker Arm Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  2. Remove the stationary hydraulic lash adjusters (SHLA) from the bores.
  3. Clean and inspect the valve lifters. Refer to «Valve Lifters Cleaning and Inspection»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-3-of-5__valve-lifters-cleaning-and-inspection) .
  1. Fill the stationary hydraulic lash adjuster (SHLA) with clean engine oil. Refer to «Sealers, Adhesives, and Lubricants»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction__sealers-adhesives-and-lubricants) for the correct part number. Take precautions to prevent scratching the pivot sphere area (1) of the SHLA.
  2. Install the new SHLAs into the bores.
  3. Install the left valve rocker arms. Refer to «Valve Rocker Arm Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  1. Remove the right valve rocker arms. Refer to «Valve Rocker Arm Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  2. Remove the stationary hydraulic lash adjusters (SHLA) from the bores.
  3. Clean and inspect the valve lifters. Refer to «Valve Lifters Cleaning and Inspection»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-3-of-5__valve-lifters-cleaning-and-inspection) .
  1. Fill the stationary hydraulic lash adjuster (SHLA) with clean engine oil. Refer to «Sealers, Adhesives, and Lubricants»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction__sealers-adhesives-and-lubricants) for the correct part number. Take precautions to prevent scratching the pivot sphere area (1) of the SHLA.
  2. Install the new SHLAs into the bores.
  3. Install the right valve rocker arms. Refer to «Valve Rocker Arm Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .

Valve Stem Oil Seal and Valve Spring Replacement - Left Side

Tools Required

  1. J 38820 Valve Stem Seal Remover and Installer
  2. J 39313 Spark Plug Port Adapter
  3. J 43059 Valve Retainer Remover/Installer
  4. J 44211 On-Vehicle Valve Spring Compressor
  5. EN 46326 Flywheel Holder
  1. Remove the left camshafts. Refer to «Camshaft Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-left-side) .
  2. Remove the starter. Refer to «Starter Motor Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .
  3. Install the EN 46326 (1).
  4. Remove the spark plug from the cylinder being worked on.
  5. Install the base plate of the J 44211 (2) over the spark plug hole of the cylinder to be serviced.
  6. Install the J 39313 (1) in the spark plug hole.
  7. Apply constant air pressure to the J 39313 (1) in order to keep the valve closed.
  8. Install the arm and swivel nut of the J 44211 (2) over the stud corresponding to the valve to be serviced.
  9. Tighten the swivel nut of the J 44211 (2) down only enough to allow access for removal of the valve locks.
  10. Remove the valve locks. A magnet is the most suitable tool for this activity.
  11. Loosen the swivel nut of the J 44211 (2) and swing the arm away from the valve spring retainer.
  12. Remove the valve spring retainer and valve spring.
  13. Use the J 38820 in order to grip the seal. Remove the seal by exerting a twisting, pulling motion. Discard the old valve stem seal.
  14. Inspect and measure the valve spring. Refer to «Valve Spring Inspection and Measurement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-4-of-5__valve-spring-inspection-and-measurement) .
  1. Lubricate the valve stem and the inner diameter of the new seal with clean engine oil.
  2. Using a twisting pushing motion install the NEW valve stem seal using the J 38820 .
  3. Install the valve spring retainer and valve spring.
  4. Swing the arm over the valve spring retainer and tighten the swivel nut of the J 44211 (2) down only enough to allow access for installation of the valve locks.
  5. Position the valve locks to the valve stem retainer groove using the J 43059 .
  6. Remove the swivel nut and arm of the J 44211 (2).
  7. Install the arm and swivel nut of the J 44211 (2) over the stud of any other valves being serviced and repeat removal steps 12 through 17 and installation steps 1 through 7.
  8. Relieve the air pressure to the cylinder being serviced.
  9. Remove the J 39313 (1) from the spark plug hole.
  10. Remove the base plate of the J 44211 (2).
  11. Install the spark plug. Refer to «Spark Plug Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  12. Repeat removal steps 7 through 17 and installation steps 1 through 11 on any other cylinders being serviced.
  13. Install the left camshafts. Refer to «Camshaft Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-left-side) .
  14. Remove the EN 46326 (1).
  15. Install the starter. Refer to «Starter Motor Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .

Valve Stem Oil Seal and Valve Spring Replacement - Right Side

Tools Required

  1. J 38820 Valve Stem Seal Remover and Installer
  2. J 39313 Spark Plug Port Adapter
  3. J 43059 Valve Retainer Remover/Installer
  4. J 44211 On-Vehicle Valve Spring Compressor
  5. EN 46326 Flywheel Holder
  1. Remove the right camshafts. Refer to «Camshaft Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-right-side) .
  2. Remove the starter. Refer to «Starter Motor Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .
  3. Install the EN 46326 (1).
  4. Remove the spark plug from the cylinder being worked on.
  5. Install the base plate of the J 44211 (2) over the spark plug hole of the cylinder to be serviced.
  6. Install the J 39313 (1) in the spark plug hole.
  7. Apply constant air pressure to the J 39313 (1) in order to keep the valve closed.
  8. Install the arm and swivel nut of the J 44211 (2) over the stud corresponding to the valve to be serviced.
  9. Tighten the swivel nut of the J 44211 (2) down only enough to allow access for removal of the valve locks.
  10. Remove the valve locks. A magnet is the most suitable tool for this activity.
  11. Loosen the swivel nut of the J 44211 (2) and swing the arm away from the valve spring retainer.
  12. Remove the valve spring retainer and valve spring.
  13. Use the J 38820 in order to grip the seal. Remove the seal by exerting a twisting, pulling motion. Discard the old valve stem seal.
  14. Inspect and measure the valve spring. Refer to «Valve Spring Inspection and Measurement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-4-of-5__valve-spring-inspection-and-measurement) .
  1. Lubricate the valve stem and the inner diameter of the new seal with clean engine oil.
  2. Using a twisting pushing motion install the NEW valve stem seal using the J 38820 .
  3. Install the valve spring retainer and valve spring.
  4. Swing the arm over the valve spring retainer and tighten the swivel nut of the J 44211 (2) down only enough to allow access for installation of the valve locks.
  5. Position the valve locks to the valve stem retainer groove using the J 43059 .
  6. Remove the swivel nut and arm of the J 44211 (2).
  7. Install the arm and swivel nut of the J 44211 (2) over the stud of any other valves being serviced and repeat removal steps 12 through 17 and installation steps 1 through 7.
  8. Relieve the air pressure to the cylinder being serviced.
  9. Remove the J 39313 (1) from the spark plug hole.
  10. Remove the base plate of the J 44211 (2).
  11. Install the spark plug. Refer to «Spark Plug Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  12. Repeat removal steps 7 through 17 and installation steps 1 through 11 on any other cylinders being serviced.
  13. Install the right camshafts. Refer to «Camshaft Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5__camshaft-replacement-right-side) .
  14. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/xlr/i-2003-2009/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) .
  15. Remove the EN 46326 (1).
  16. Install the starter. Refer to «Starter Motor Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .

Engine Flywheel Replacement

Tools Required

  1. J 45059 Angle Meter
  2. EN 46326 Flywheel Holding Tool
  1. Remove the powertrain. Refer to «Powertrain Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  2. Remove the driveline support assembly. Refer to «Driveline Support Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/driveshaft-universal-joints/#propeller-shaft) .
  3. Remove the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5) .
  4. Install the EN 46326 .
  5. Remove the engine flywheel bolts.
  6. Remove the flywheel and the reinforcement.
  7. Clean and inspect the engine flywheel. Refer to «Engine Flywheel Cleaning and Inspection»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-3-of-5) .
  1. Apply sealant to the flywheel mounting bolts. Refer to «Sealers, Adhesives, and Lubricants»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction__sealers-adhesives-and-lubricants) for the correct part number.
  2. Position the flywheel and the reinforcement to the crankshaft.
  3. Install the flywheel mounting bolts. Tighten: Tighten the flywheel mounting bolts a first pass to 30 N.m (22 lb ft). Tighten the flywheel mounting bolts a final pass an additional 50 degrees using the J 45059 .
  4. Remove the EN 46326 .
  5. Install the intake manifold. Refer to «Intake Manifold Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5) .
  6. Install the driveline support assembly. Refer to «Driveline Support Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/driveshaft-universal-joints/#propeller-shaft) .
  7. Install the powertrain. Refer to «Powertrain Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  1. Remove the front suspension crossmember. Refer to «Front Suspension Crossmember Replacement»(/cadillac/xlr/i-2003-2009/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  2. Drain the engine oil.
  3. Remove the engine oil filter and allow to drain.
  4. Remove the automatic transmission fluid cooler line mounting clips. Refer to «Transmission Fluid Cooler Lower Pipe Assembly Replacement - Transmission to Auxiliary Cooler»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-6l80e) .
  5. Disconnect the engine oil level sensor electrical connector (1).
  6. Remove the oil level sensor (2). Refer to «Engine Oil Level Sensor and/or Switch Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-1-of-5) .
  7. Remove the oil pan bolts.
  8. Remove the oil pan.
  9. Drill out the oil pan gasket rivets.
  10. Remove and discard the oil pan gasket.
  11. Clean and inspect the oil pan. Refer to «Oil Pan Cleaning and Inspection»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-3-of-5) .
IMPORTANTAll gasket surfaces should be free of oil or other foreign material during assembly. The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the flywheel housing cover. To ensure the rigidity of the powertrain it is important that the rear of the block and the rear of the oil pan are flush or even. The rear of the oil pan must NEVER protrude beyond the engine block.
  1. Use a new oil pan gasket. It is not necessary to rivet the new oil pan gasket to the oil pan.
  2. Position the oil pan to the lower crankcase.
  3. The oil pan must be held flush to 0.50 mm (0.020 in) forward of the rear face of the engine block (1).
  4. Install the oil pan bolts in the sequence shown. Tighten: First Pass-Tighten the oil pan bolts to 15 N.m (11 lb ft). Final Pass-Tighten the oil pan bolts to 25 N.m (18 lb ft).
  5. Install the oil drain plug. Tighten: Tighten the oil drain plug to 25 N.m (18 lb ft).
  6. Install the engine oil level sensor into the oil pan. Tighten: Tighten the engine oil level sensor to 20 N.m (15 lb ft).
  7. Connect the electrical connector to the engine oil level sensor.
  8. Install the automatic transmission fluid cooler line mounting clips. Refer to «Transmission Fluid Cooler Lower Pipe Assembly Replacement - Transmission to Auxiliary Cooler»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-6l80e) .
  9. Install a NEW engine oil filter. Tighten: Tighten the engine oil filter to 30 N.m (22 lb ft).
  10. Install the front suspension crossmember to the vehicle. Refer to «Front Suspension Crossmember Replacement»(/cadillac/xlr/i-2003-2009/remont/frames-subframes-crossmembers/#frame-and-underbody) .
  11. Fill the crankcase with the proper quantity and grade of engine oil. Refer to «Approximate Fluid Capacities»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__approximate-fluid-capacities) and «Fluid and Lubricant Recommendations»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) .
  12. Run the engine and check for leaks.

Crankshaft Rear Oil Seal Replacement

Tools Required

  1. J 42841-A Crankshaft Rear Oil Seal Remover
  2. J 45930-A Crankshaft Rear Oil Seal Installer
  3. EN-48072 Sealant Applicator
  4. J 38817-A Rear Main Seal Installer
  1. Remove the flywheel. Refer to «Engine Flywheel Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5__engine-flywheel-replacement) .
  2. Place the J 42841-A on to the crankshaft.
  3. Install the J 42841-A retaining bolts.
  4. Using a drill motor, variable speed preferred, with a socket adapter, install eight 25 mm (1.0 in) self-drilling screws into the seal using the guide holes in the removal tool. When drilling, make sure you reduce the drill speed when the screw begins threading into the seal.
  5. With all 8 removal screws installed, remove the J 42841-A retaining bolts.
  6. Install the center forcing screw.
  7. Tighten the center screw on the removal tool to pull the seal assembly off the end of the crankshaft.
  1. Ensure the engine block where the crankshaft rear oil seal is installed is a deep bore (1). A deep bore of approximately 15 mm (0.5906 in) was used on engines from March 1, 1996 and later. A shallow bore of approximately 8 mm (0.3150 in) was used on engines from 1993 thru February 29, 1996. This block would use a lip-style crankshaft rear oil seal and the J 38817-A for installation.
  2. Inspect the engine block bore (1) and the crankshaft flange (2) for the damage. Repair or replace any damaged components.
  3. Ensure the oil drain-back hole is clear of debris using a wire or an unbound plastic tie wrap.
  4. Clean the bore in the block with cleaner solvent GM P/N 12378392 or 12346139 (Canadian P/N 88901247).
  5. Remove the proper sized bolts from the J 45930-A . Use the bolts (2) 8 mm or the bolts (3) 11 mm.
  6. Install the EN-48072 pilot base onto the crankshaft. The hub on the crankshaft will fit into the recess on the inboard side of the EN-48072 pilot base.
  7. Use the proper bolts from the J 45930-A to retain the EN-48072 pilot base in place.
  8. Install the EN-48072 applicator housing over the EN-48072 pilot base. Ensure the EN-48072 applicator housing bottoms in the bore of the block.
  9. Apply the sealant GM P/N 12378521 (Canadian P/N 88901148) to the bore outer diameter in the block. Ensure the sealant does not block the drain hole.
  10. Using a suitable tool spread the sealant within the bore to ensure an even coating across the bore.
  11. Using both hands, slowly and evenly, pull the EN-48072 applicator housing out of the bore and remove it from the EN-48072 pilot base.
  12. Remove the J 45930-A bolts from the EN-48072 pilot base.
  13. Remove the EN-48072 pilot base.
  14. Ensure that the sealant (1) is evenly spread across the bore of the block.
  15. Ensure the drain back hole (1) is clear of the sealant.
  16. Ensure the proper size of bolt (2) 8 mm or (3) 11 mm is being installed in the J 45930-A .
  17. Turn the center nut (1) of the J 45930-A until the center hub (2) protrudes approximately 15 mm (0.591 in) beyond the outer plate (3).
  18. Do not lubricate any part of the new cassette style crankshaft rear oil seal.
  19. Install the new cassette style crankshaft rear oil seal onto the center hub of the J 45930-A .
  20. Thread the two J 45930-A mounting bolts into the crankshaft flywheel bolt holes.
  21. Tighten the two mounting bolts until the J 45930-A is firmly mounted on the crankshaft.
  22. Install the new cassette style crankshaft rear oil seal by turning the nut of the J 45930-A until the drive portion of the J 45930-A bottoms against the crankcase.
  23. Loosen the center nut to release pressure on the crankcase.
  24. Loosen the two mounting bolts.
  25. Remove the J 45930-A from the crankshaft.
  26. Wipe off any excessive sealant from the block.
  27. Ensure the new cassette style crankshaft rear oil seal is installed properly. The outer surface of the seal (3) should be 0.500-0.800 mm (0.0197-0.0315 in) (1) below the surface of the engine block (2). The inner surface of the sleeve (6) should be 0.400-0.900 mm (0.0158-0.0354 in) (4) below the surface of the outer surface of the seal (5). The installed seal and sleeve need to be parallel to the block by 0.000-0.500 mm (0.000-0.0197 in).
  28. Clean all tools to remove any residual sealant.
  29. Install the flywheel. Refer to «Engine Flywheel Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5__engine-flywheel-replacement) .

Engine Replacement

Tools Required

  1. J 28467-86 Right Engine Lift Bracket
  2. J 28467-87 Left Engine Lift Bracket
  1. Drain the engine oil. Refer to «Engine Oil and Oil Filter Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  2. Remove the powertrain. Refer to «Powertrain Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  3. Remove the left exhaust manifold assembly. Refer to «Exhaust Manifold Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) .
  4. Remove the left engine mount bracket. Refer to «Engine Mount Bracket Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-1-of-5) .
  5. Remove the drive belt tensioner. Refer to «Drive Belt Tensioner Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5) .
  6. Remove the generator. Refer to «Generator Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .
  7. Remove the bolt (1) securing the starter/generator harness clip to the front of the engine.
  8. Remove the bolts (1) and nut (2) securing the engine wiring harness to the left side of the engine.
  9. Remove the right exhaust manifold assembly. Refer to «Exhaust Manifold Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) .
  10. Remove the right engine mount bracket. Refer to «Engine Mount Bracket Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-1-of-5) .
  11. Disconnect the electrical connector from the engine oil level sensor.
  12. Remove the power steering reservoir. Refer to «Remote Power Steering Fluid Reservoir Replacement»(/cadillac/xlr/i-2003-2009/remont/manual-power-steering/#power-steering-system) .
  13. Remove the air conditioning compressor and bracket. Refer to «Compressor Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  14. Remove the transmission cooler lines (1, 2). Refer to «Transmission Fluid Cooler Hose/Pipe Replacement (Front)»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-5l40-e5l50-e-introduction-2-of-2) or «Transmission Fluid Cooler Hose/Pipe Replacement (Rear)»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-5l40-e5l50-e-introduction-2-of-2) for the 5L50-E transmission.
  15. Remove the coolant temperature sensor. Refer to «Engine Coolant Temperature Sensor Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  16. Remove the bolts (1) and nut (2) securing the wiring harness to the engine.
  17. Remove the engine wiring harness.
  18. Remove the throttle body assembly (1). Refer to «Throttle Body Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  19. Remove the left ignition module assembly. Refer to «Ignition Coil Module Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  20. Remove the right ignition module assembly. Refer to «Ignition Coil Module Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  21. Remove the starter motor from the engine. Refer to «Starter Motor Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .
  22. Disconnect the electrical connector (5) from the left-hand knock sensor.
  23. Disconnect the electrical connector (1) from the right-hand knock sensor.
  24. Disconnect the electrical connector from the crank sensor (4).
  25. Remove the bolt (2) securing the wiring harness (3) to the engine.
  26. Remove the driveline support bolts.
  27. Insert a flat-headed screwdriver, or similar tool, between the driveline support and the flywheel housing, then separate the driveline assembly from the engine.
  28. Slowly pull the driveline support assembly away from the engine.
  29. Install the J 28467-86 and J 28467-87 to the engine.
  30. Install an engine hoist to the J 41798 .
  31. Remove the flywheel housing bolts.
  32. Remove the flywheel housing from the engine.
  33. Remove the engine from the lift table.
  34. Remove the engine hoist.
  35. Remove the engine lift brackets.
  1. Using an engine hoist, install the replacement engine on an engine stand.
  2. Install the transmission oil cooler pipes (1, 2) to engine. Refer to «Transmission Fluid Cooler Hose/Pipe Replacement (Front)»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-5l40-e5l50-e-introduction-2-of-2) or «Transmission Fluid Cooler Hose/Pipe Replacement (Rear)»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-5l40-e5l50-e-introduction-2-of-2) for the 5L50-E transmission.
  3. Connect the harness to the low lever oil switch (1).
  4. Install the bolt through the engine harness clip and secure to the right side of the engine. Tighten: Tighten the bolts to 35 N.m (26 lb ft).
  5. Connect the left rear engine harness ground terminal to the engine. Tighten: Tighten the bolt to 12 N.m (106 lb in).
  6. Connect the harness (1) to the oil pressure sensor (2).
  7. Install the air conditioning/power steering bracket to the engine assembly. Refer to «Compressor Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) .
  8. Install the power steering pump reservoir to the engine. Refer to «Remote Power Steering Fluid Reservoir Replacement»(/cadillac/xlr/i-2003-2009/remont/manual-power-steering/#power-steering-system) .
  9. Install the drive belt tensioner. Refer to «Drive Belt Tensioner Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5) .
  10. Install the generator coolant inlet hose fitting (1). Tighten: Tighten the fitting to 25 N.m (18 lb ft).
  11. Install the generator rear brace (1) to the engine. Tighten: Tighten the bolt to 50 N.m (37 lb ft).
  12. Install the generator stud to the engine lower crankcase. Tighten: Tighten the stud to 12 N.m (106 lb in).
  13. Install the generator. Refer to «Generator Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .
  14. Connect the harness connector (5) to the left knock sensor.
  15. Connect the harness connector (1) to the right knock sensor.
  16. Connect the harness connector (4) to the crank sensor.
  17. Install the bolt (2) through the harness bracket. Tighten: Tighten the bolt to 10 N.m (89 lb in).
  18. Install the starter. Refer to «Starter Motor Replacement (LH2)»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) .
  19. Attach the right side upper wiring harness (1) as shown.
  20. Attach the left side upper wiring harness (1) to the cam cover as shown.
  21. Connect the engine harness to the right camshaft position sensors.
  22. Connect the engine wiring harness (1) to the purge valve solenoid.
  23. Connect the engine wiring harness (1) to the left camshaft position sensors.
  24. Connect the jumper harness to the engine harness as shown.
  25. Install the left ignition module assembly. Refer to «Ignition Coil Module Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  26. Install the right ignition module assembly. Refer to «Ignition Coil Module Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  27. Install the coolant temperature sensor (2). Refer to «Engine Coolant Temperature Sensor Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) .
  28. Connect the harness (1) to the throttle position sensor (2).
  29. Install the left engine mount bracket to the engine. Refer to «Engine Mount Bracket Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-1-of-5) .
  30. Secure the wiring harness to the engine. Tighten: Tighten the bolts (1) to 35 N.m (26 lb ft). Tighten the nut (2) to 35 N.m (26 lb ft).
  31. Install the right engine mount bracket to the engine. Refer to «Engine Mount Bracket Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-1-of-5) .
  32. Install an engine hoist to the engine.
  33. Remove the engine from the engine stand.
  34. Install the flywheel housing and bolts. Refer to «Engine Flywheel Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5__engine-flywheel-replacement) .
  35. Install the flywheel housing left side cover (1) to the engine.
  36. Install the engine closeout cover (1) to the right side of the bell housing. Tighten: Tighten the bolts (2) to 10 N.m (89 lb in).
  37. Install the engine wiring harness to the engine by inserting the bolts through the harness clips and into the bell housing. Tighten: Tighten the bolts to 50 N.m (37 lb ft).
  38. Install the engine into the front cradle.
  39. Remove the engine lift brackets.
  40. Install the exhaust manifold studs to the right cylinder head. Tighten: Tighten the studs to 6 N.m (53 lb in).
  41. Install the exhaust manifold studs to the left cylinder head. Tighten: Tighten the studs to 6 N.m (53 lb in).
  42. Install the right exhaust manifold assembly to the engine. Refer to «Exhaust Manifold Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) .
  43. Install the left exhaust manifold assembly to the engine. Refer to «Exhaust Manifold Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) .
  44. Install the evaporator emission canister purge tube assembly to the engine.
  45. Install the powertrain. Refer to «Powertrain Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-2-of-5) .
  46. Fill the oil system to the proper level.
  1. Open the trunk.
  2. Disconnect the electronic suspension control module connectors from the module. Refer to «Electronic Suspension Control Module Replacement»(/cadillac/xlr/i-2003-2009/remont/electronic-suspension/#suspension-control-system-suspension-damping) in Electronic Suspension Control (ESC).
  3. Close the trunk.
  4. Disconnect the battery negative cable. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  5. Recover the air conditioning (A/C) refrigerant. Refer to «Refrigerant Recovery and Recharging»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning__refrigerant-recovery-and-recharging) in Heating, Ventilation and Air Conditioning.
  6. Remove the fuel injector sight shield. Refer to «Fuel Injector Sight Shield Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5) .
  7. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) in Engine Controls - 4.6L (LH2).
  8. Disconnect the evaporative emission (EVAP) canister purge pipe (1) from the chassis purge pipe (2).
  9. Cap the open pipes in order to prevent possible contamination.
  10. Disconnect the fuel inlet quick-connect fitting at the fuel line and secure. Refer to «Metal Collar Quick Connect Fitting Service»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2__metal-collar-quick-connect-fitting-service) .
  11. Remove the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) in Engine Controls - 4.6L (LH2).
  12. Remove the radiator. Refer to «Radiator Replacement»(/cadillac/xlr/i-2003-2009/remont/cooling-system-mechanical/#engine-cooling-system__radiator-replacement) in Engine Cooling.
  13. Remove the surge tank. Refer to «Radiator Surge Tank Replacement»(/cadillac/xlr/i-2003-2009/remont/cooling-system-mechanical/#engine-cooling-system) in Engine Cooling.
  14. Remove the air conditioning condenser. Refer to «Condenser Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) in Heating, Ventilation and Air Conditioning.
  15. Disconnect the vacuum brake booster hose from the brake booster.
  16. Disconnect the electrical connector (1) from the brake fluid level sensor.
  17. Remove the brake master cylinder nuts from the brake booster studs.
  18. Pull the master cylinder forward out of contact with the brake booster studs.
  19. Secure the master cylinder to the engine.
  20. Remove the bolts from the intermediate steering shaft.
  21. Disconnect the steering shaft from the steering gear.
  22. Tie-wrap the steering shaft to the engine.
  23. Remove the battery. Refer to «Battery Replacement»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  24. Remove the battery tray. Refer to «Battery Tray Replacement»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  25. Remove the ground strap nut and terminal from the stud on the frame.
  26. Disconnect the A/C electrical connector from the pressure sensor.
  27. Remove the UHJB from the wheelhouse.
  28. Disconnect the wiring harness connector from the UHJB.
  29. Secure the wiring harness to the engine.
  30. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/xlr/i-2003-2009/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
  31. Remove the front wheels and tires. Refer to «Tire and Wheel Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
  32. Remove the right front wheelhouse panel (access to the engine control module (ECM)/transmission control module (TCM) electrical connectors). Refer to «Wheelhouse Filler Replacement»(/cadillac/xlr/i-2003-2009/remont/exterior-body-panels/#body-front-end) in Body Front End.
  33. Disconnect and secure the following wiring harness electrical connectors to the top of engine: The ECM-Refer to «Engine Control Module Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-44l-introduction-2-of-2__engine-control-module-replacement) in Engine Controls. The engine electrical harness-Refer to «Underhood Electrical Center or Junction Block Replacement»(/cadillac/xlr/i-2003-2009/remont/body-electrical/#how-to-diagnosis-repair-the-wiring-systems-testing) in Wiring Systems.
  34. Disconnect A/C lines from front of dash connections. Refer to «Compressor Hose Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) in Heating, Ventilation and Air Conditioning.
  35. Disconnect heater hoses from heater pipes. Refer to «Heater Pipes Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) in Heating, Ventilation and Air Conditioning.
  36. Disconnect the front wheel speed sensor electrical connectors.
  37. Disconnect the road sensing suspension position sensor links from the front lower control arms.
  38. Support the lower control arm with a straight jack.
  39. Remove the shock absorber lower mounting bolts.
  40. Disconnect the upper ball joint from the suspension knuckle. Refer to «Steering Knuckle Replacement»(/cadillac/xlr/i-2003-2009/remont/suspension-front/#front-suspension-system) in Front Suspension.
  41. Remove the straight jack from the control arm.
  42. Repeat steps-through-for the other side of the vehicle.
  43. Remove the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
  44. Disconnect the rear wheel speed sensor electrical connectors.
  45. Disconnect the road sensing suspension position sensor links from the rear lower control arms.
  46. Support the lower control arm with a straight jack.
  47. Remove the rear shock absorber lower mounting bolt.
  48. Disconnect the upper ball joint from the suspension knuckle. Refer to «Knuckle Replacement»(/cadillac/xlr/i-2003-2009/remont/suspension-rear/#rear-suspension-system) in Rear Suspension.
  49. Remove the straight jack from the control arm.
  50. Repeat steps-through-for the other side of the vehicle.
  51. Remove the RH muffler assembly. Refer to «Exhaust Muffler Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
  52. Remove the LH muffler assembly. Refer to «Exhaust Muffler Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
  53. Remove the exhaust intermediate pipe. Refer to «Intermediate Pipe Replacement»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
  54. Remove the bolts from the driveline tunnel closeout panel.
  55. Remove the driveline tunnel closeout panel.
  56. Remove the nuts retaining the transmission shift cable bracket to the transmission.
  57. Disconnect the transmission shift control cable from the transmission shift lever. Unsnap to release the cable.
  58. Reposition the transmission shift cable and bracket.
  59. Position the powertrain table under the front cradle.
  60. Position the powertrain table under the rear cradle.
  61. With the aid of an assistant, slowly lower the vehicle onto the powertrain tables.
  62. Using HAND TOOLS ONLY, remove the front and rear crossmember nuts. Refer to «Front Suspension Crossmember Replacement»(/cadillac/xlr/i-2003-2009/remont/frames-subframes-crossmembers/#frame-and-underbody) in Frame and Underbody.
  63. Carefully raise the vehicle to clear the supported powertrain assembly.
  1. Position the powertrain under the vehicle.
  2. With the aid of an assistant, slowly lower the vehicle onto the powertrain.
  3. Guide the front and rear cradle into the cradle bolts.
  4. Using HAND TOOLS ONLY, install the front and rear cradle nuts. Tighten: Tighten the nuts to 110 N.m (81 lb ft).
  5. Attach the transmission shift cable bracket to the transmission.
  6. Install the nuts retaining the transmission shift cable bracket to the transmission. Tighten: Tighten the nuts to 20 N.m (15 lb ft).
  7. Connect the transmission shift cable to the transmission shift lever.
  8. Install the driveline tunnel closeout panel.
  9. Install the bolts to the driveline closeout panel. Tighten: Tighten the bolts to 10 N.m (89 lb in).
  10. Install the RH muffler assembly. Refer to «Exhaust Muffler Replacement - Right Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
  11. Install the LH muffler assembly. Refer to «Exhaust Muffler Replacement - Left Side»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
  12. Install the exhaust intermediate pipe. Refer to «Intermediate Pipe Replacement»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system) in Engine Exhaust.
  13. Connect the upper ball joint to the right knuckle. Refer to «Knuckle Replacement»(/cadillac/xlr/i-2003-2009/remont/suspension-rear/#rear-suspension-system) in Rear Suspension.
  14. Install the rear shock absorber lower mounting bolts. Tighten: Tighten the bolts to 28 N.m (21 lb ft).
  15. Connect the road sensing suspension position link to lower control arm.
  16. Repeat steps-through-for the other side of the vehicle.
  17. Connect the rear wheel speed sensor electrical connectors.
  18. Install the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
  19. Connect the upper ball joint to the right front suspension knuckle. Refer to «Steering Knuckle Replacement»(/cadillac/xlr/i-2003-2009/remont/suspension-front/#front-suspension-system) in Front Suspension.
  20. Install the shock absorber lower mounting bolts.
  21. Connect the road sensing suspension position sensor link to the front lower connect arm.
  22. Connect the front wheel speed sensor electrical connector.
  23. Repeat steps-through-for other side of vehicle.
  24. Install the master cylinder to the brake booster. Refer to «Master Cylinder Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical-hydraulic/#hydraulic-brake-system) in Hydraulic Brakes.
  25. Install the intermediate steering shaft to the steering column. Refer to «Intermediate Steering Shaft Replacement»(/cadillac/xlr/i-2003-2009/remont/steering-column-switches/#steering-wheel-steering-column) in Steering Wheel and Column.
  26. Connect the vacuum brake booster hose to the brake booster.
  27. Connect the heater hoses to the heater pipes. Refer to «Heater Pipes Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) in Heating, Ventilation and Air Conditioning.
  28. Connect the A/C lines to the front of dash connections. Refer to «Compressor Hose Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) in Heating, Ventilation and Air Conditioning.
  29. Attach the engine ground cable to the right side body frame rail. Tighten: Tighten to 8 N.m (71 lb in).
  30. Connect the following wiring harness electrical connectors: The ECM-Refer to «Engine Control Module Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-44l-introduction-2-of-2__engine-control-module-replacement) in Engine Controls. C101 engine electrical harness-Refer to «Underhood Electrical Center or Junction Block Replacement»(/cadillac/xlr/i-2003-2009/remont/body-electrical/#how-to-diagnosis-repair-the-wiring-systems-testing) in Wiring Systems.
  31. Install the right front wheelhouse panel. Refer to «Wheelhouse Filler Replacement»(/cadillac/xlr/i-2003-2009/remont/exterior-body-panels/#body-front-end) in Body Front End.
  32. Install the front wheels and tires. Refer to «Tire and Wheel Removal and Installation»(/cadillac/xlr/i-2003-2009/remont/wheel-tire-system/#tires-and-wheels) in Tires and Wheels.
  33. Connect the UHJB to the wheelhouse.
  34. Connect the A/C electrical connector to the pressure sensor.
  35. Install the battery tray. Refer to «Battery Tray Replacement»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  36. Install the battery. Refer to «Battery Replacement»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  37. Install the air conditioning condenser. Refer to «Condenser Replacement»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning) in Heating, Ventilation and Air Conditioning.
  38. Install the radiator. Refer to «Radiator Replacement»(/cadillac/xlr/i-2003-2009/remont/cooling-system-mechanical/#engine-cooling-system__radiator-replacement) in Engine Cooling.
  39. Install the surge tank. Refer to «Radiator Surge Tank Replacement»(/cadillac/xlr/i-2003-2009/remont/cooling-system-mechanical/#engine-cooling-system) in Engine Cooling.
  40. Install the air cleaner assembly. Refer to «Air Cleaner Assembly Replacement»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2) in Engine Controls - 4.6L (LH2).
  41. Connect the fuel inlet quick-connect fitting to the fuel rail. Refer to «Metal Collar Quick Connect Fitting Service»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-introduction-2-of-2__metal-collar-quick-connect-fitting-service) in Engine Controls - 4.6L (LH2).
  42. Connect the EVAP emission canister purge pipe (1) to the chassis purge pipe (2).
  43. Install the fuel injector sight shield. Refer to «Fuel Injector Sight Shield Replacement»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-1-of-5) .
  44. Charge the air conditioning (A/C) refrigerant. Refer to «Refrigerant Recovery and Recharging»(/cadillac/xlr/i-2003-2009/remont/automatic-hvac-system/#heating-ventilation-and-air-conditioning__refrigerant-recovery-and-recharging) in Heating, Ventilation and Air Conditioning.
  45. Connect the battery negative cable. Refer to «Battery Negative Cable Disconnection and Connection»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  46. Program the transmitters. Refer to «Transmitter Programming (Domestic and Japan)»(/cadillac/xlr/i-2003-2009/remont/door-locks-anti-theft-systems/#keyless-entry-system__transmitter-programming-domestic-and-japan) or «Transmitter Programming (Export - Including Canada)»(/cadillac/xlr/i-2003-2009/remont/door-locks-anti-theft-systems/#keyless-entry-system__transmitter-programming-export-including-canada) in Keyless Entry.
  47. Fill the crankcase with the proper quantity and grade of engine oil. Refer to «Approximate Fluid Capacities»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__approximate-fluid-capacities) and «Fluid and Lubricant Recommendations»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) in Maintenance and Lubrication.
  48. Reset the oil life monitoring system. Refer to «GM Oil Life System Resetting»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__gm-oil-life-system-resetting) in Maintenance and Lubrication.
  49. Perform the engine pre-lubrication procedures. Refer to «Engine Prelubing»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-5-of-5__engine-prelubing-off-vehicle) .
  50. Start the engine.
  51. Run the engine speed at about 1,000 RPM until the engine has reached normal operating temperature.
  52. Inspect for fuel, oil, and/or coolant leaks while the engine is running.
  53. Perform a final inspection for the proper engine oil and coolant levels.
  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/xlr/i-2003-2009/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) .
  2. Position the oil drain pan under the engine oil drain plug.
  3. Remove the engine oil drain plug.
  4. Clean and inspect the engine oil drain plug, replace if necessary.
  5. Clean and inspect the engine oil drain plug sealing surface on the oil pan, repair or replace oil pan if necessary.
  6. Remove the oil filter.
  7. Clean and inspect the oil filter sealing area on the oil filter adapter, repair or replace if necessary.
  1. Fill the oil filter with oil.
  2. Lightly oil the replacement oil filter gasket with clean oil.
  3. Install the new oil filter. Tighten: Tighten the new oil filter to 3/4 to 1 full turn, after the oil filter gasket contacts the oil filter mounting surface.
  4. Install the engine oil drain plug. Tighten: Tighten the engine oil drain plug to 20 N.m (15 lb ft).
  5. Lower the vehicle.
  6. Fill the engine with new engine oil. Refer to «Approximate Fluid Capacities»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__approximate-fluid-capacities) and «Fluid and Lubricant Recommendations»(/cadillac/xlr/i-2003-2009/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) .
  7. Inspect for oil leaks after engine start up.

Left Side Harness Connections

  1. Disconnect the engine wiring harness from the left side fuel injectors.
  2. Disconnect the engine wiring harness from the left camshaft cover.
  3. Disconnect the engine wiring harness from the left ignition coil harness.
  4. Disconnect the engine wiring harness from the left camshaft position sensors.
  5. Disconnect the engine wiring harness from the EVAP purge solenoid.
  6. Disconnect the engine wiring harness from the throttle position sensor on the throttle body.
  7. Remove the nut attaching the starter motor wiring harness to the generator stud.
  8. Disconnect the starter motor wiring harness from the generator stud.
  9. Disconnect the engine wiring harness from the generator.
  10. Disconnect the engine wiring harness from the oil pressure sensor.
  11. Disconnect the engine wiring harness from the oxygen sensor wiring harness.
  12. Disconnect the engine wiring harness from the starter motor wiring harness.
  13. Remove the bolt and nut retaining the engine wiring harness to the engine block.
  14. Remove the engine wiring harness ground bolt at the front of the engine block.
  15. Remove the engine wiring harness ground bolt at the rear of the engine block.
  16. Remove the bolt retaining the engine wiring harness to the left camshaft position actuator housing.

Right Side Harness Connections

  1. Disconnect the engine wiring harness from the right side fuel injectors.
  2. Disconnect the engine wiring harness from the right camshaft cover.
  3. Disconnect the engine wiring harness from the right ignition coil harness.
  4. Disconnect the engine wiring harness from the right camshaft position sensors.
  5. Remove the engine wiring harness ground nut from the fuel rail stud.
  6. Remove the engine wiring harness ground from the fuel rail stud.
  7. Disconnect the engine wiring harness from the ECT sensor at the rear of the right cylinder head.
  8. Disconnect the engine wiring harness from the air conditioning compressor.
  9. Disconnect the engine wiring harness from the MAP sensor.
  10. Disconnect the engine wiring harness from the knock and crankshaft position sensor wiring harness.
  11. Disconnect the engine wiring harness from the oil level sensor.
  12. Disconnect the engine wiring harness from the right oxygen sensor wiring harness.
  13. Remove the engine wiring harness bracket bolt from the engine block.
  14. Remove the engine wiring harness from the engine.

Exhaust Manifold Removal - Left Side - Off Vehicle

  1. Remove the left exhaust manifold heat shield bolts.
  2. Remove the left exhaust manifold heat shield.
  3. Remove the left exhaust manifold bolt from the bell housing.
  4. Remove the left exhaust manifold bolts and nuts from the left cylinder head.
  5. Remove the left exhaust manifold.
  6. Remove the left exhaust manifold gasket.
  7. Remove the left exhaust manifold studs from the left cylinder head.
  8. Remove the left engine mount upper nut.
  9. Remove the left engine mount.
  10. Remove the engine mount heat shield from the engine mount.
  11. Remove the left engine mount bracket bolts.
  12. Remove the left engine mount bracket.

Exhaust Manifold Removal - Right Side - Off Vehicle

  1. Remove the right exhaust manifold heat shield bolts.
  2. Remove the right exhaust manifold heat shield.
  3. Remove the right exhaust manifold bolt from the bell housing.
  4. Remove the right exhaust manifold bolts and nuts from the right cylinder head.
  5. Remove the right exhaust manifold.
  6. Remove the right exhaust manifold gasket.
  7. Remove the right exhaust manifold studs from the right cylinder head.
  8. Remove the right engine mount upper nut.
  9. Remove the right engine mount.
  10. Remove the engine mount heat shield from the engine mount.
  11. Remove the right engine mount upper nut.
  12. Remove the right engine mount.
  13. Remove the left engine flywheel housing cover.
  14. Remove the right engine flywheel housing cover bolts.
  15. Remove the right engine flywheel housing cover.
  16. Remove the bell housing bolts.
  17. Remove the bell housing.

Drive Belt Removal - Off Vehicle

  1. Insert a 1/2-inch drive extension into the drive belt tensioner.
  2. Push down on the extension to release tension.
  3. Remove the drive belt from the generator.
  4. Slowly return the drive belt tensioner to the original position.
  5. Remove the outer drive belt.
  6. With a wrench hold the air conditioner compressor drive belt tensioner in place while the lower bolt (2) is removed from the air conditioner drive belt tensioner.
  7. Release the tension on the air conditioner compressor drive belt tensioner and allow the inner drive belt to relax.
  8. Remove the upper bolt (1) on the air conditioner compressor drive belt tensioner.
  9. Remove the air conditioner compressor drive belt tensioner.
  10. Remove the inner drive belt.

Tool Required

J 25034-C Pulley Remover. See Special Tools .

  1. If necessary, using the J 25034-C , remove the power steering pump pulley in order to access the power steering pump mounting bolts. See «Special Tools»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction__special-tools) .
  2. Remove the power steering pump mounting bolts.
  3. Remove the power steering pump.

Drive Belt Idler Pulley Removal - Off Vehicle

  1. Loosen the drive belt idler pulley bolt.
  2. Remove the drive belt idler pulley bracket nut.
  3. Remove the drive belt idler pulley.

Generator Removal - Off Vehicle

  1. Remove the bolt from the generator coolant hose assembly on the generator.
  2. Remove the generator coolant hose assembly from the generator port.
  3. Disconnect the generator coolant hose from the fitting in the engine front cover.
  4. Remove the generator coolant hose assembly.
  5. Remove and discard the generator coolant hose sealing rings.
  6. Remove the front upper generator bolt.
  7. Remove the generator.
  8. Remove the generator mounting stud from the engine block.
  9. Remove the generator rear brace from the engine block.

Air Conditioning (A/C) Compressor Removal - Off Vehicle

  1. Remove the A/C compressor bolts.
  2. Remove the A/C compressor.
  3. Remove the P/S pump and A/C compressor bracket bolts.
  4. Remove the P/S pump and A/C compressor bracket.

Drive Belt Tensioner Removal - Off Vehicle

  1. Remove the drive belt tensioner bolt.
  2. Remove the drive belt tensioner.

Water Outlet Housing Removal - Off Vehicle

  1. Remove the EVAP purge valve tube from the EVAP purge valve.
  2. Remove the throttle body bolts.
  3. Remove the throttle body from the water outlet.
  4. Remove and discard the throttle body gasket.
  5. Loosen the clamp (1) on the intake manifold plenum duct.
  6. Remove the water outlet housing bolts.
  7. Remove the water outlet housing.

Intake Manifold Removal - Off Vehicle

  1. Disconnect the PCV fresh air tube from the camshaft cover.
  2. Disconnect the PCV dirty air tube from the camshaft cover and the intake manifold.
  3. Remove the sight shield bracket nuts.
  4. Remove the sight shield bracket.
  5. Remove the studs attaching the fuel rail to the intake manifold.
  6. Lift the entire fuel rail and injector assembly from the intake manifold.
  7. Remove the intake manifold bolts.
  8. Remove the intake manifold.

Starter Removal - Off Vehicle

  1. Remove the ECT sensor from the rear of the right cylinder head.
  2. Remove the knock and crankshaft position sensor wiring harness bolt (1).
  3. Disconnect the knock and crankshaft position sensor wiring harness connectors from the knock sensors and the crankshaft position sensor.
  4. Disconnect the knock and crankshaft position sensor wiring harness from the attaching points in the center, back and front of block valley.
  5. Remove the knock and crankshaft position sensor wiring harness.
  6. Loosen the knock sensor bolts.
  7. Remove the knock sensors.
  8. Remove the crankshaft position sensor bolt.
  9. Remove the crankshaft position sensor.
  10. Remove and discard the crankshaft position sensor O-ring.
  11. Remove the starter motor bolts.
  12. Remove the starter motor and starter motor wiring harness.

Crankshaft Balancer Removal - Off Vehicle

Tools Required

  1. EN 46326 Flywheel Holding Tool
  2. J 38416-2 Crankshaft Button
  3. J 41816 Crankshaft Balancer Remover
  1. Install the EN 46326 .
  2. Remove the crankshaft balancer bolt.
  3. Place the J 38416-2 into the end of the crankshaft.
  4. Install the J 41816 on the crankshaft balancer.
  5. Remove the crankshaft balancer using the J 41816 .

Engine Flywheel Removal - Off Vehicle

Tools Required

EN 46326 Flywheel Holding Tool

  1. Remove the engine flywheel bolts.
  2. Remove the engine flywheel.
  3. Remove the EN 46326 .

Crankshaft Rear Oil Seal Removal - Off Vehicle

Tools Required

J 42841-A Rear Oil Seal Remover

  1. Install the J 42841-A plate onto the crankshaft. The hub on the crankshaft will fit into the recess on the inboard side of the J 42841-A plate.
  2. Use the proper bolts from the J 42841-A to retain the plate in place. Use the bolts (1) 8 mm or the bolts (2) 11 mm.
  3. Using a drill motor, variable speed preferred, with a socket adapter, install eight 25 mm (1.0 in) self-drilling screws into the seal using the guide holes in the removal tool. When drilling, ensure the drill motor speed is reduced when the screw begins threading into the seal.
  4. With all eight removal screws installed, remove the J 42841-A retaining bolts.
  5. Install the center forcing screw.
  6. Tighten the center screw on the J 42841-A to pull the seal assembly off the end of the crankshaft.
  7. After removing the crankshaft rear oil seal inspect the engine block bore (1) and the crankshaft flange (2) for the damage. Repair or replace any damaged components.

Oil Level Indicator and Tube Removal - Off Vehicle

  1. Remove the oil level indicator bolt.
  2. Remove the oil level indicator tube.

Oil Filter Adapter Removal - Off Vehicle

  1. Remove the oil filter.
  2. Remove the oil filter adapter bolts.
  3. Remove the oil filter adapter.
  4. Remove and discard the oil filter adapter gasket.

Ignition Coil Module Removal - Left Side - Off Vehicle

  1. Remove the ignition coil assembly bolts (708) and ball studs (709).
  2. Carefully, remove the ignition coil assembly.
  3. Remove the spark plugs.

Camshaft Cover Removal - Left Side - Off Vehicle

Tools Required

  1. J 39946 Crankshaft Socket - 4.0L and 4.6L
  2. EN 46328 Camshaft Holding Tool
  1. Loosen the left camshaft position sensor bolts.
  2. Remove the left camshaft position sensors.
  3. Remove the bolts connecting the left camshaft cover ground strap to the left cylinder head and to the left camshaft cover.
  4. Remove the left camshaft cover ground strap.
  5. Loosen the left camshaft cover bolts.
  6. Remove the left camshaft cover.
  7. Use the J 39946 on the nose of the crankshaft in order to align and install the EN 46328 on the rear of the left cylinder head camshafts.
  8. Install the EN 46328 on the left cylinder head camshafts.

Camshaft Position Actuator Housing Removal - Left Side - Off Vehicle

  1. Remove the left camshaft position actuator housing bolts.
  2. Remove the left camshaft position actuator housing.

Ignition Coil Module Removal - Right Side - Off Vehicle

  1. Remove the ignition coil assembly bolts.
  2. Carefully, remove the ignition coil assembly.
  3. Remove the spark plugs.

Camshaft Cover Removal - Right Side - Off Vehicle

Tools Required

EN 46328 Camshaft Holding Tool

  1. Loosen the right camshaft position sensor bolts.
  2. Remove the right camshaft position sensors.
  3. Remove the bolts connecting the right camshaft cover ground strap to the right cylinder head and to the right camshaft cover.
  4. Remove the right camshaft cover ground strap.
  5. Loosen the right camshaft cover bolts.
  6. Remove the right camshaft cover.
  7. Install the EN 46328 on the right cylinder head camshafts.

Camshaft Position Actuator Housing Removal - Right Side - Off Vehicle

  1. Remove the right camshaft position actuator housing bolts.
  2. Remove the right camshaft position actuator housing.

Engine Front Cover Removal - Off Vehicle

  1. Remove the water pump pulley bolts.
  2. Remove the water pump pulley.
  3. Remove the engine front cover bolts.
  4. Remove the engine front cover.
  5. Remove and discard the engine front cover gasket.

Oil Pump Removal - Off Vehicle

  1. Remove the oil pump bolts.
  2. Remove the oil pump.

Secondary Camshaft Drive Chain Removal - Right Side - Off Vehicle

  1. Remove the right secondary camshaft drive chain tensioner.
  2. Use an open end wrench on the hex cast into the right intake camshaft, in order to prevent the camshaft from rotating, when loosening the camshaft position actuator oil control valve on the right intake camshaft.
  3. Use an open end wrench on the hex cast into the right exhaust camshaft, in order to prevent the camshaft from rotating, when loosening the camshaft position actuator oil control valve on the right exhaust camshaft.
  4. Remove the right camshaft position actuator oil control valves from the right side camshafts.
  5. Slide the right camshaft position actuators off the right side camshafts.
  6. Remove the right secondary camshaft drive chain from the outer camshaft intermediate drive shaft sprocket teeth.
  7. Remove the right secondary camshaft drive chain from the engine.
  8. Remove the right secondary camshaft drive chain shoe bolt.
  9. Remove the right secondary camshaft drive chain shoe.
  10. Remove the right secondary camshaft drive chain guide bolt.
  11. Remove the right secondary camshaft drive chain guide.

Secondary Camshaft Drive Chain Removal - Left Side - Off Vehicle

  1. Remove the left secondary camshaft drive chain tensioner.
  2. Use an open end wrench on the hex cast into the left intake camshaft, in order to prevent the camshaft from rotating, when loosening the camshaft position actuator oil control valve on the left intake camshaft.
  3. Use an open end wrench on the hex cast into the left exhaust camshaft, in order to prevent the camshaft from rotating, when loosening the camshaft position oil actuator control valve on the left exhaust camshaft.
  4. Remove the left camshaft position actuator oil control valves from the left side camshafts.
  5. Slide the left camshaft position actuators off the left side camshafts.
  6. Remove the left secondary camshaft drive chain from the inner camshaft intermediate drive shaft sprocket teeth.
  7. Remove the left secondary camshaft drive chain from the engine.
  8. Remove the left secondary camshaft drive chain shoe bolt.
  9. Remove the left secondary camshaft drive chain shoe.
  10. Remove the left secondary camshaft drive chain guide bolt.
  11. Remove the left secondary camshaft drive chain guide.

Oil Pump Outlet Tube Removal - Off Vehicle

  1. Remove the oil outlet tube bolts (1-5).
  2. Remove the oil outlet tube.
  3. Remove and discard the oil outlet tube O-ring.

Primary Camshaft Drive Chain Removal - Off Vehicle

  1. Remove the camshaft intermediate drive shaft sprocket bolt.
  2. Remove the primary camshaft drive chain tensioner bolts.
  3. Remove the primary camshaft drive chain tensioner.
  4. Remove the primary camshaft drive chain guide bolts.
  5. Remove the primary camshaft drive chain guide.
  6. Remove the camshaft intermediate drive shaft sprocket, primary camshaft drive chain and crankshaft sprocket (3) as an assembly.

Camshaft Intermediate Drive Shaft Removal - Off Vehicle

  1. Remove the intermediate sprocket shaft retaining bolts.
  2. Remove the intermediate sprocket shaft.

Exhaust Camshaft Removal - Left Side - Off Vehicle

  1. Observe the markings on the bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings: The arrow points toward the front of the engine. The "E" indicates the exhaust camshaft. The number indicates the journal position from the front of the engine.
  2. Remove the left exhaust camshaft bearing cap bolts.
  3. Remove the left exhaust camshaft bearing caps. Store the bearing caps in a clean shop towel.
  4. Remove the left exhaust camshaft. Place the camshaft in a secure location.
  5. Cover the camshaft with an oil soaked towel in order to prevent corrosion.

Intake Camshaft Removal - Left Side - Off Vehicle

  1. Observe the markings on the bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings: The arrow points toward the front of the engine. The "I" indicates the intake camshaft. The number indicates the journal position from the front of the engine.
  2. Remove the left intake camshaft bearing cap bolts.
  3. Remove the left intake camshaft bearing caps. Store the bearing caps in a clean shop towel.
  4. Remove the left intake camshaft. Place the camshaft in a secure location.
  5. Cover the camshaft with an oil soaked towel in order to prevent corrosion.

Valve Rocker Arm Removal - Left Side - Off Vehicle

  1. Remove the camshaft followers from the left cylinder head.
  2. Store the camshafts, followers and SHLAs in a clean, secure location.

Valve Lifter Removal - Left Side - Off Vehicle

  1. Remove the stationary hydraulic lash adjuster (SHLAs) from the left cylinder head lifter bores.
  2. Store the camshafts, followers and SHLAs in a clean, secure location.

Cylinder Head Removal - Left Side - Off Vehicle

Tools Required

J 28410 Gasket Remover

  1. Remove the 3 M6 external drive bolts from the front portion of the cylinder head.
  2. Remove and discard the 10 M11 internal drive cylinder head bolts.
  3. Remove the left cylinder head. Ensure that no dowel guide pins are stuck in the cylinder head.
  4. After removing the cylinder head, remove any remaining bolt thread sealant material from the threaded cylinder block holes.
  5. Remove the left cylinder head gasket.
  6. Remove all remaining gasket material from the cylinder head and cylinder block using the J 28410 .

Exhaust Camshaft Removal - Right Side - Off Vehicle

  1. Observe the markings on the bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings: The arrow points toward the front of the engine. The "E" indicates the exhaust camshaft. The number indicates the journal position from the front of the engine.
  2. Remove the right exhaust camshaft bearing cap bolts.
  3. Remove the right exhaust camshaft bearing caps. Store the bearing caps in a clean shop towel.
  4. Remove the right exhaust camshaft. Place the camshaft in a secure location.
  5. Cover the camshaft with an oil soaked towel in order to prevent corrosion.

Intake Camshaft Removal - Right Side - Off Vehicle

  1. Observe the markings on the bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings: The arrow points toward the front of the engine. The "I" indicates the intake camshaft. The number indicates the journal position from the front of the engine.
  2. Remove the right intake camshaft bearing cap bolts.
  3. Remove the right intake camshaft bearing caps. Store the bearing caps in a clean shop towel.
  4. Remove the right intake camshaft. Place the camshaft in a secure location.
  5. Cover the camshaft with an oil soaked towel in order to prevent corrosion.

Valve Rocker Arm Removal - Right Side - Off Vehicle

  1. Remove the camshaft followers from the right cylinder head.
  2. Store the camshafts, followers and SHLAs in a clean, secure location.

See also:
• Camshaft Replacement - Left Side
• Valve Rocker Arms Cleaning and Inspection
• Sealers, Adhesives, and Lubricants
• Camshaft Replacement - Right Side
• Valve Lifters Cleaning and Inspection
• Starter Motor Replacement (LH2)
• Compressed Valve Spring Caution
• Valve Spring Inspection and Measurement
• Spark Plug Replacement
• Lifting and Jacking the Vehicle
• Driveline Support Assembly Replacement
• Intake Manifold Replacement
• Engine Flywheel Cleaning and Inspection
• Fastener Notice
• Front Suspension Crossmember Replacement
• Transmission Fluid Cooler Lower Pipe Assembly Replacement - Transmission to Auxiliary Cooler
• Engine Oil Level Sensor and/or Switch Replacement
• Component Fastener Tightening Notice
• Approximate Fluid Capacities
• Fluid and Lubricant Recommendations
• Battery Disconnect Caution
• Exhaust Manifold Replacement - Left Side
• Remote Power Steering Fluid Reservoir Replacement
• Compressor Replacement
• Transmission Fluid Cooler Hose/Pipe Replacement (Front)
• Electronic Suspension Control Module Replacement
• Refrigerant Recovery and Recharging
• Metal Collar Quick Connect Fitting Service
• Radiator Replacement
• Radiator Surge Tank Replacement
• Brake Fluid Irritant Caution
• Tire and Wheel Removal and Installation
• Wheelhouse Filler Replacement
• Engine Control Module Replacement
• Underhood Electrical Center or Junction Block Replacement
• Steering Knuckle Replacement
• Knuckle Replacement
• Master Cylinder Replacement
• Intermediate Steering Shaft Replacement
• Transmitter Programming (Domestic and Japan)
• Transmitter Programming (Export - Including Canada)
• GM Oil Life System Resetting
• Engine Prelubing
• Special Tools
• Torque Reaction Against Timing Drive Chain Notice
• Valve Lifter Priming Notice
• Valve Rocker Arm Replacement - Left Side
• Engine Flywheel Replacement

More articles — Engine