Tools Required

J 25034-C Power Steering Pump Pulley Remover

1. Drain the engine oil.
2. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
3. Disconnect the intake air temperature (IAT) sensor electrical connector.



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



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



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



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



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



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



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



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



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



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



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



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

32.1.

Oil pump gear set (2)

32.2.

Camshaft sensor (3)

32.3.

Oil filter adapter (5) and gasket

32.4.

Oil pressure relief valve (6) and spring

33. Clean the engine front cover and the engine block gasket surfaces.

Tools Required

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

1.1.	Oil pump gear set (2)

1.2.	Camshaft sensor (3)

1.3.	Oil filter adapter (5) and new gasket

1.4.	Oil pressure relief valve (6) and spring

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



3. Install the crankshaft front oil seal to the front cover using the J 35354 and a soft faced hammer.



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

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.

6. Install the coolant pump bolts (1).

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




7. Install the engine front cover gasket to the engine block.



8. Install the engine front cover (2).
9. Align the cogs on the crankshaft sprocket with the cogs on the oil pump in the engine front cover.



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

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




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



13. Install the coolant pump pulley.
14. Install the coolant pump pulley bolts.

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

15. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
16. Install the oil pan to front cover bolts.
17. Tighten the loose oil pan bolts.

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




18. Install the crankshaft position sensor.
19. Apply sealant GM P/N 12346004 or equivalent to the crankshaft position sensor studs.
20. Install the crankshaft position sensor studs.

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




21. Install the crankshaft position sensor shield.
22. Connect the crankshaft position sensor electrical connector.
23. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
24. Lower the vehicle.



25. Install the power steering pump (1).
26. Install the power steering pump nuts (3).

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




27. Connect the reservoir hose return line (2) to the power steering pump (1).
28. Position the return line (2) hose clamp in the correct location.
29. 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).




30. Use the J 25033-C to install the power steering pump pulley.
31. Remove the J 25033-C .
32. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .



33. Install the air intake duct.



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