Tools Required

J 36857 Engine Lift Brackets

1. Open the hood.
2. Place fender covers over both fenders.
3. Raise the hood to the service position, perform the following:

3.1.	Remove the hood hinge bolts (1).

3.2.	Raise the hood until vertical.

3.3.	Install the hood hinge bolts until snug in the service position (2).




4. Loosen the clamps at the throttle body and air cleaner.
5. Remove the air cleaner outlet duct.



6. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
7. Disconnect the positive battery cable.
8. Remove the ignition coils. Refer to Ignition Coil Replacement .



9. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
10. Disconnect the fuel feed pipe (1) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
11. Remove the air conditioning (A/C) compressor. Refer to Air Conditioning Compressor Replacement .
12. Remove the radiator. Refer to Radiator Replacement .



13. Disconnect the throttle actuator control (TAC) module electrical connector (1).
14. Remove the vacuum lines from the engine, as required.



15. Remove the ground cable bolt at the engine block.
16. Remove the generator. Refer to Generator Replacement .
17. Remove the engine electrical harness and tie out of the way.
18. Raise and suitably support the vehicle safety stands. Refer to Lifting and Jacking the Vehicle .
19. Remove the starter motor. Refer to Starter Motor Replacement .
20. Remove the hoses from the power steering pump. Refer to Power Steering Cooler Pipe/Hose Replacement .
21. Remove the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .
22. Remove the catalytic converter. Refer to Catalytic Converter Replacement .



23. Remove the torque converter bolts, if equipped.
24. Remove the clutch pressure plate bolts, if equipped.
25. Remove the bolts from the transmission to the engine.

•	For the automatic transmission, refer to Transmission Replacement for the 4L80-E transmission or Transmission Replacement for the Allison transmission .

•	For the manual transmission, refer to Transmission Replacement for the NV 4500 transmission .

26. Remove the engine oil cooler lines from the engine block. Refer to Engine Oil Cooler Hose/Pipe Replacement .



27. Attach J 36857 to the rear of the right cylinder head and to the front of the left cylinder head.

Notice: Refer to Fastener Notice in the Preface section.

28. Install the attaching bolt and washer. Use GM P/N 9428217 with GM P/N 15650963.

Tighten
Tighten the lift bracket bolts to 40 N·m (30 lb ft).




29. Remove the engine mount heat shield bolts and shields.



30. Remove the engine mount to engine mount bracket bolts.
31. Remove the engine using a suitable lifting devise.
32. Install the engine onto a suitable engine stand.
33. Remove the generator mounting bracket. Refer to Generator Bracket Replacement .



34. Remove the A/C compressor/power steering pump bracket from the cylinder head.
35. Remove the lift brackets from the cylinder head.

1. Attach J 36857 to the rear of the right cylinder head and to the front of the left cylinder head.
2. Install the attaching bolt and washer. Use GM P/N 9428217 with GM P/N 15650963.

Tighten
Tighten the lift bracket bolts to 40 N·m (30 lb ft).




3. Install the air compressor/power steering mounting bracket to the engine block.

Tighten
Tighten the power steering pump bracket bolts and nut to 50 N·m (37 lb ft).

4. Install the generator bracket. Refer to Generator Bracket Replacement .
5. Remove the engine using a suitable lifting devise.
6. Install the engine into the vehicle.



7. Install the engine mount to engine mount bracket bolts.



8. Install the engine mount heat shield and bolts.
9. Remove the engine lift hooks from the cylinder heads.
10. Raise the vehicle and support with safety stands.
11. Install the engine oil cooler lines to the engine block. Refer to Engine Oil Cooler Hose/Pipe Replacement .



12. Install the bolts from the transmission to the engine.

•	For the automatic transmission, refer to Transmission Replacement for the 4L80-E transmission or Transmission Replacement for the Allison transmission.

•	For the manual transmission, refer to Transmission Replacement for the NV 4500 transmission.

13. Install the clutch pressure plate bolts, if equipped.
14. Install the torque converter bolts, if equipped.
15. Install the catalytic converter. Refer to Catalytic Converter Replacement .
16. Install the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .
17. Install the hoses to the power steering pump. Refer to Power Steering Cooler Pipe/Hose Replacement .
18. Install the starter motor. Refer to Starter Motor Replacement .
19. Lower the vehicle.
20. Route the engine electrical harness.
21. Install the generator. Refer to Generator Replacement .



22. Install the ground cable bolt at the engine block.

Tighten
Tighten the engine wiring harness bolt to 16 N·m (12 lb ft).

23. Install the vacuum lines to the engine.



24. Connect the TAC module electrical connector (1).
25. Install the radiator. Refer to Radiator Replacement .
26. Install the A/C compressor. Refer to Air Conditioning Compressor Replacement .



27. Connect the fuel feed pipe (1) to the fuel rail.
28. Install the ignition coils. Refer to Ignition Coil Replacement .
29. Connect the positive battery cable.
30. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .



31. Install the air cleaner outlet duct.
32. Tighten the clamps at the throttle body and air cleaner.

Tighten
Tighten the clamps to 4 N·m (35 lb in).

33. Remove fender covers from both fenders.



34. Remove the hood hinge bolts from the service position (2).
35. Lower the hood to the normal position.
36. Install the hood hinge bolts.

Tighten
Tighten the hood hinge bolts to 25 N·m (18 lb ft).

37. Before starting a new engine or one that has been repaired, complete the following procedure.

37.1.

Prelube the engine. Refer to Engine Prelubing .

37.2.

Remove the fuel pump fuse and disconnect the coil harness connectors, then crank the engine until oil pressure is present.

37.3.

Crank the engine several times. Listen for any unusual noises or evidence that any of the parts are binding.

37.4.

Install the fuel pump fuse and connect the coil harness connectors and start the engine and listen for unusual noises.

37.5.

Check the vehicle oil pressure gage or light and confirm that the engine has acceptable oil pressure. If necessary install an oil pressure gage and measure the oil pressure.

37.6.

Run the engine at about 1000 RPM until the engine has reached normal operating temperature.

37.7.

Inspect for oil and or coolant leaks while the engine is running.

37.8.

Stop the engine and perform a final inspection for the proper engine oil and coolant levels.

37.9.

The final step is to perform the crankshaft position (CKP) sensor variation learn procedure. Refer to Crankshaft Position System Variation Learn .