Tools Required

J 25034-C Power Steering Pump Pulley Remover

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
2. Drain the engine oil.
3. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.



4. Disconnect the intake air temperature (IAT) sensor electrical connector.



5. Remove the air intake duct.
6. Loosen the coolant pump pulley bolts.
7. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .



8. Use the J 25034-C to remove the power steering pump pulley.



9. Place a drain pan under the power steering pump (1).
10. Disconnect the inlet hose (3) from the power steering pump (1).
11. Reposition the hose clamp on the return line (2).
12. Disconnect the reservoir hose return line (2) from the power steering pump (1).



13. Remove the power steering pump nuts (3).
14. Remove the power steering pump (1).
15. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
16. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .



17. Disconnect the crankshaft position sensor electrical connector.
18. Remove the crankshaft position sensor shield.



19. Remove the crankshaft position sensor studs.
20. Remove the crankshaft position sensor.
21. Remove the oil pan to front cover bolts.
22. Loosen the oil pan bolts, to drop the oil pan slightly in order to add clearance for the front cover installation.
23. Lower the vehicle.



24. Remove the coolant pump pulley bolts.
25. Remove the coolant pump pulley.



26. Remove the radiator outlet hose from the front cover.



27. Remove the engine front cover studs and bolts (1).
28. Remove the engine front cover (2).



29. Remove the engine front cover gasket from the engine block.



30. Remove the coolant pump bolts (1).
31. Remove the coolant pump (2).
32. Remove the coolant pump gasket (3) from the front cover (4).



33. If replacing the front cover (1), disassemble the following components:

•	Oil pump gear set (2)

•	Camshaft sensor (3)

•	Oil filter adapter (5) and gasket

•	Oil pressure relief valve (6) and spring

34. Remove the crankshaft front oil seal (4).
35. Clean the engine front cover and engine block surfaces.

Tools Required

1. J 36660-A Torque Angle Meter
2. J 35354 Seal Installer
3. J 25033-C Power Steering Pump Pulley Installer

1. If replacing the front cover (1), assemble the following parts:

•	Oil pump gear set (2)

•	Camshaft sensor (3)

•	Oil filter adapter (5) and a new gasket

•	Oil pressure relief valve (6) and spring

2. Install a new crankshaft front oil seal (4)



3. Install the coolant pump gasket (3) to the front cover (4).
4. Install the coolant pump (2).
5. Install the coolant pump bolts (1).

Tighten
Tighten the coolant pump bolts (1) to 15 N·m (11 lb ft). Use the J 36660-A to torque the coolant pump bolts (1) an additional 80 degrees.




6. Install a new engine front cover gasket to the engine block.



7. Install the engine front cover (2).



8. Apply sealant GM P/N 12346004 or equivalent to the engine front cover bolts (1) and stud (2).
9. Install the engine front cover bolts (1) and stud (2).

Tighten
Tighten the front cover bolts (1) and stud (2) to 20 N·m (15 lb ft). Use the J 36660-A to torque the front cover bolts (1) and stud (2) an additional 40 degrees.




10. Install the radiator outlet hose to the front cover.



11. Install the coolant pump pulley.
12. Install the coolant pump pulley bolts.

Tighten
Tighten the coolant pump pulley bolts to 13 N·m (115 lb in).

13. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
14. Install the oil pan to front cover bolts.

Tighten
Tighten the oil pan bolts to 14 N·m (10 lb ft).




15. Install the crankshaft position sensor.
16. Apply sealant GM P/N 12346004 or equivalent to the crankshaft position sensor studs.
17. Install the crankshaft position sensor studs.

Tighten
Tighten the crankshaft position sensor studs to 20 N·m (15 lb ft). Use the J 36660-A to torque the crankshaft position sensor studs an additional 40 degrees.




18. Install the crankshaft position sensor shield.
19. Connect the crankshaft position sensor electrical connector.
20. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
21. Lower the vehicle.



22. Install the power steering pump (1).
23. Install the power steering pump nuts (3).

Tighten
Tighten the power steering pump nuts (3) to 30 N·m (23 lb ft).




24. Connect the reservoir hose return line (2) to the power steering pump (1).
25. Position the hose clamp on the return line (2).
26. Connect the inlet hose (3) to the power steering pump (1).

Tighten
Tighten the inlet hose (3) fitting to 28 N·m (21 lb ft).




27. Use the J 25033-C to install the power steering pump pulley.
28. Remove the J 25033-C .
29. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .



30. Install the air intake duct.



31. Connect the intake air temperature (IAT) sensor electrical connector.
32. Refill the engine oil.
33. Refill the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.



34. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.