Timing Cover: Service and Repair

Removal Procedure

^ Tools Required
- J 28467-360 Engine Support Fixture

Caution: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Recover the air conditioning (A/C) refrigerant.
3. Drain the cooling system. Recover the cooling system.
4. Install the J 28467-360.





5. Remove the engine mount assembly.
6. Remove the engine mount bracket support.
7. Remove the drive belt.
8. Remove the air cleaner assembly.
9. Remove the throttle body tube.
10. Disconnect the power steering liner at the power steering pump.





11. Loosen the top 2 Air Conditioning (A/C) compressor bolts.
12. Remove the generator.
13. Remove the generator bracket.
14. Raise and support the vehicle. Refer to Vehicle Lifting.
15. Remove the right front tire and wheel assembly.
16. Remove the right front splash shield.
17. Remove the flywheel inspection cover.
18. Remove the crankshaft balancer.
19. Remove the drive belt tensioner.
20. Disconnect the right wheel speed sensor connector and the wire harness from the suspension support.
21. Remove the right ball joint.
22. Remove the right stabilizer shaft from the right suspension support and the right control arm.





23. Remove the A/C compressor to oil pan bolts.





24. Remove the oil filter.
25. Remove the oil filter.
26. Drain the engine oil.
27. Remove the starter motor.
28. Remove the oil pan.





29. Remove the crankshaft sensor.
30. Remove the lower front cover bolts.
31. Lower the vehicle.
32. Remove the coolant bypass to coolant pump and the manifold.
33. Remove the radiator hose to coolant outlet housing.





34. Remove the front cover bolts.
35. Remove the front cover.
36. Remove the front cover oil seal.
37. Clean the mating surfaces of the following items:
37.1. The front cover
37.2. The oil pan
37.3. The cylinder block
38. Clean the sealing surfaces using degreaser.

Installation Procedure

Important: Do not damage the sealing surfaces.





1. Install the front cover gasket.
2. Apply sealer to both sides of the lower tabs of the front cover gasket. Use GM RTV sealer GM P/N 1052080 or an equivalent. Install the front cover oil seal.
4. Place the front cover on the engine.

Notice: Refer to Fastener Notice in Service Precautions.

5. Install the upper 2 front cover bolts.

^ Tighten the bolts to 21 Nm (15 ft. lbs.).

6. Install the radiator hose to coolant housing.
7. Install the coolant bypass pipe to coolant pump and the manifold.
8. Raise and support the vehicle. Refer to Vehicle Lifting.
9. Install the lower front cover bolts.

^ Tighten the small bolts (1) to 21 Nm (15 ft. lbs.).
^ Tighten the large bolts (2) to 47 Nm (35 ft. lbs.).





10. Install the crankshaft sensor.
11. Install the oil pan.
12. Install the starter motor.
13. Install the oil filter.





14. Install the A/C compressor to oil pan bolts.
15. Install the stabilizer shaft to the right suspension support and to the control arm.
16. Install the right ball joint.
17. Connect the right wheel speed sensor connector and the wire harness to the suspension support.
18. Install the drive belt tensioner.
19. Install the crankshaft balancer.
20. Install the flywheel inspection cover.
21. Install the right splash shield.
22. Install the right front tire and wheel assembly.
23. Lower the vehicle.





24. Install the A/C compressor top bolts.
25. Install the power steering pump.
26. Install the drive belt.
27. Install the engine mount bracket support and the bolts.
^ Tighten the 8 mm bolts to 20 Nm (15 ft. lbs.).
^ Tighten the 12 mm bolts to 40 Nm (30 ft. lbs.).





28. Install the engine mount assembly.
29. Remove the engine support fixture.
30. Fill the cooling system.
31. Fill the crankcase to the appropriate level. Use the recommended oil.
32. Connect the negative battery cable.