Tools Required

J 36857 Engine Lift Bracket

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
2. Remove the hood from the vehicle. Refer to Hood Replacement in Body Front End.
3. Remove the engine cover from the vehicle. Refer to Engine Cover Replacement in Interior Trim.
4. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
5. Remove the front bumper from the vehicle. Refer to Front Bumper Replacement in Bumpers.
6. Remove the grille from the vehicle. Refer to Grille Replacement in Exterior Trim.
7. Remove the auxiliary engine oil cooler from the vehicle (if needed). Refer to Auxiliary Engine Oil Cooler Replacement in Engine Cooling.
8. Remove the transmission oil cooler (if equipped). Refer to Transmission Fluid Auxiliary Cooler Replacement in Automatic Transmission - 4L80E.
9. Remove the radiator from the vehicle. Refer to Radiator Replacement in Engine Cooling.
10. Evacuate the air conditioning system. Refer to Refrigerant Recovery and Recharging in Heating, Ventilation and Air Conditioning.



11. Remove the A/C condenser lines from the condenser.



12. Remove the radiator support bolts (3) from the radiator support (1).
13. Disconnect the forward lamp harness electrical connector.
14. Remove the ground strap bolts from the right and left fenders.
15. Remove the radiator support (1) with the A/C condensor.
16. Remove the engine lift bracket from the engine assembly. Refer to Engine Lift Bracket Replacement .
17. Remove generator mounting bracket from the engine assembly. Refer to Generator Bracket Replacement in Engine Electrical.



18. Remove the engine wiring harness from the left side of the engine assembly.



19. Remove the engine wiring harness from the right side of the engine assembly.
20. Remove the turbocharger assembly from the engine block. Refer to Turbocharger Replacement .
21. Remove the exhaust manifolds from the cylinder heads. Refer to Exhaust Manifold Replacement - Left Side and Exhaust Manifold Replacement - Right Side .
22. Remove the lower intake manifold from the engine block. Refer to Lower Intake Manifold Replacement .
23. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
24. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.



25. Remove the transmission oil cooler lines from the retainers on the engine oil pan and secure to the side.



26. Remove the engine oil cooler lines from the engine and secure to the side.



27. Remove the bolts securing the converter cover to the transmission.
28. Mark the flywheel and the torque converter alignment.



29. Remove the bolts that attach the torque converter to the engine flywheel.



30. Remove the studs and the bolts securing the transmission to the engine.



31. Remove the ground strap and negative battery cable from the engine.



32. Remove the electrical connector from the block heater.



33. Remove the engine oil filter.
34. Lower the vehicle.



35. Install the J 36857 and a length of chain, using GM P/N 23503910 or equivalent attaching bolt to the right cylinder head rear corner and left cylinder head front corner.
36. Support the transmission.
37. Attach a suitable lifting device to the chain.



38. Remove the engine mount through-bolt from the left engine mount.



39. Remove the right mount through-bolt from the right engine mount.



40. Remove the left engine mount from the frame.



41. Remove the right engine mount from the frame.
42. Remove the engine from the vehicle.



43. Remove the flywheel from the crankshaft before installing the engine assembly to the engine stand.
44. Install the engine assembly on a suitable engine stand.
45. Remove the lifting device from the engine assembly.
46. Remove the lifting brackets from the engine assembly.



47. Remove the engine mount brackets from the engine block.



48. Remove the right engine mount bracket from the engine block.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the engine mount bracket to the engine block.

Tighten
Tighten the engine mount bolts to 54 N·m (40 lb ft).




2. Install the right engine mount bracket to the engine block.

Tighten
Tighten the engine mount bolts to 54 N·m (40 lb ft).




3. Install the J 36857 and a length of chain, using GM P/N 23503910 or equivalent attaching bolt, to the rear of the right cylinder head and the front of the left cylinder head.
4. Remove the engine assembly from the engine stand.



5. Install the flywheel on the crankshaft.

Tighten
Tighten the flywheel bolts to 90 N·m (65 lb ft).




6. Install the left engine mount to the frame.

Tighten
Tighten the engine mount bolts to 59 N·m (44 lb ft).




7. Install the right engine mount to the frame.

Tighten
Tighten the engine mount bolts to 59 N·m (44 lb ft).

8. Install the engine assembly in the vehicle.
9. Lower the engine assembly on to the engine mount brackets.



10. Install the engine mount through-bolt for the left side.

Tighten
Tighten the through-bolt to 68 N·m (50 lb ft).




11. Install the engine mount through-bolt for the right side.

Tighten
Tighten the through-bolt to 68 N·m (50 lb ft).

12. Remove the lifting device from the engine assembly.
13. Raise the vehicle.




Important: The torque converter must be flush onto the flywheel and rotate freely by hand.

14. Install the bolts that secure the transmission to the engine.

Tighten
Tighten the studs and the bolts to 47 N·m (34 lb ft).




15. Install the bolts securing the torque converter to the engine flywheel.

Tighten

1. First tighten all the bolts finger tight in order to insure proper converter seating.
2. Tighten the bolts to 63 N·m (46 lb ft).



16. Install the converter cover to the transmission.

Tighten
Tighten bolts to 33 N·m (24 lb ft).

17. Install the starter assembly to the engine block. Refer to Starter Motor Replacement in Engine Electrical.



18. Install the electrical connection for the block heater.



19. Install the ground straps from the frame to the engine block.



20. Install the transmission oil cooler lines to the retainer.
21. Install the engine oil cooler lines to the engine block. Refer to Engine Oil Cooler Hose/Pipe Replacement in Engine Cooling.
22. Lower the vehicle.
23. Install the lower intake manifold to the engine block. Refer to Lower Intake Manifold Replacement .
24. Install the exhaust manifolds to the cylinder heads. Refer to Exhaust Manifold Replacement - Left Side and Exhaust Manifold Replacement - Right Side .
25. Install the turbocharger on the engine block. Refer to Turbocharger Replacement .
26. Install the engine lift bracket. Refer to Engine Lift Bracket Replacement .
27. Install the generator mounting bracket to the engine block. Refer to Generator Bracket Replacement in Engine Electrical.



28. Install the wiring harness to the left side of the engine assembly.



29. Install the wiring harness to the right side of the engine assembly.
30. Install the radiator hoses to the engine assembly. Refer to Radiator Inlet Hose Replacement and Radiator Outlet Hose Replacement in Engine Cooling.



31. Install the radiator support (1) with A/C condenser to the vehicle. Refer to Radiator Support Replacement in Body Front End.
32. Install the ground strap bolts to the right and left fenders.
33. Connect the forward lamp harness electrical connector.



34. Connect the A/C condenser lines to the A/C condenser.
35. Install radiator in the vehicle. Refer to Radiator Replacement in Engine Cooling.
36. Install the transmission oil cooler (if equipped). Refer to Transmission Fluid Auxiliary Cooler Replacement in Automatic Transmission - 4L80E.
37. Install the auxiliary engine oil cooler. Refer to Auxiliary Engine Oil Cooler Replacement in Engine Cooling.
38. Install the grille on the vehicle. Refer to Grille Replacement in Exterior Trim.
39. Install the front bumper on the vehicle. Refer to Front Bumper Replacement in Bumpers.
40. Refill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
41. Install the battery in the vehicle. Refer to Battery Replacement in Engine Electrical.
42. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging in Heating, Ventilation and Air Conditioning.
43. Install the hood assembly on the vehicle. Refer to Hood Replacement in Body Front End.
44. Fill the engine crankcase with the proper type and quantity of engine oil. Refer to Engine Oil and Oil Filter Replacement .
45. Install a scan tool and make the required adjustments.
46. Perform the TDC offset adjustment procedure. Refer to Fuel Injection Pump Top Dead Center Offset Adjustment in Engine Controls-6.5L (L65).
47. Install the engine cover in the vehicle. Refer to Engine Cover Replacement in Interior Trim.