GM Service Manual Online
For 1990-2009 cars only

Power Steering Pump Replacement 2.2L

Removal Procedure


    Object Number: 288841  Size: SH
  1. Remove the upper fan shroud. Refer to Fan Shroud Replacement in Engine Cooling.
  2. Place a drain pan below the pump.
  3. Remove the power steering hoses from the pump.
  4. Cap the power steering hoses.
  5. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical 2.2L.
  6. Remove the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .

  7. Object Number: 395764  Size: SH
  8. Disconnect the A/C compressor electrical connection.

  9. Object Number: 281146  Size: SH
  10. Remove the A/C compressor mounting bolts.
  11. Remove the A/C compressor rear bracket mounting bolts.
  12. Remove the A/C compressor from the brackets and set aside.

  13. Object Number: 379994  Size: SH
  14. Remove the power steering pump front mounting bolts.
  15. Remove the power steering pump rear mounting bracket nuts from the engine studs.
  16. Remove the power steering pump rear mounting bracket bolt.
  17. Remove the power steering pump.

Installation Procedure


    Object Number: 379994  Size: SH
  1. Install the power steering 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.

  3. Install the power steering pump front mounting bolts.
  4. Tighten
    Tighten the power steering pump front mounting bolts to 30 N·m (22 lb ft).

  5. Install the power steering pump rear mounting bracket bolt.
  6. Install the power steering pump rear mounting bracket nuts to the engine studs.
  7. Tighten
    Tighten the power steering pump rear mounting bracket bolt and nuts to 50 N·m (37 lb ft).


    Object Number: 281146  Size: SH
  8. Install the A/C compressor to the accessory bracket.
  9. Install the A/C compressor rear bracket mounting bolts.
  10. Tighten
    Tighten the A/C compressor rear bracket mounting bolts to 31 N·m (23 lb ft).

  11. Install the A/C compressor mounting bolts.
  12. Tighten
    Tighten the A/C compressor mounting bolts to 50 N·m (37 lb ft).


    Object Number: 395764  Size: SH
  13. Connect the A/C compressor electrical connection.
  14. Install the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .
  15. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical 2.2L.

  16. Object Number: 288841  Size: SH
  17. Install the power steering pump hoses.
  18. Install the upper fan shroud. Refer to Fan Shroud Replacement in Engine Cooling.
  19. Fill the power steering system.
  20. Bleed the system. Refer to Power Steering System Bleeding .
  21. Inspect the hoses for clearance away from the frame and other components.

Power Steering Pump Replacement 4.3L

Removal Procedure


    Object Number: 395770  Size: SH
  1. Place a drain pan under the vehicle.
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls 4.3L.
  3. Remove the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .
  4. Disconnect the power steering pressure hose from the power steering gear.

  5. Object Number: 395852  Size: SH
  6. Disconnect the power steering cooler hose from the power steering pump.

  7. Object Number: 740899  Size: SH
  8. Disconnect the air reacter tube from the lower reacter tube.
  9. Remove the air reacter pipe lower retaining nut.
  10. Disconnect the air reactor pipe from the check valve and remove reacter pipe.

  11. Object Number: 288836  Size: SH
  12. Remove the power steering pump filler neck tube mounting bolt.
  13. Remove the power steering pump filler neck tube.

  14. Object Number: 288833  Size: SH
  15. Remove the power steering rear mounting bracket nut from the engine stud.

  16. Object Number: 288829  Size: SH
  17. Remove the power steering pump front mounting bolts.

  18. Object Number: 340090  Size: SH
  19. Loosen the accessory mounting bracket bolts and nuts and pull accessory mounting bracket forward.
  20. Remove the power steering pump and power steering pressure hose from the vehicle.
  21. Important: Note the position of the power steering pressure hose to the power steering pump to ensure proper installation to the vehicle.

  22. Remove the power steering pressure hose from the power steering pump.

Installation Procedure


    Object Number: 340090  Size: SH

    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 power steering pressure hose to the power steering pump.
  2. Tighten
    Tighten the power steering pressure hose to the power steering pump to 25 N·m (18 lb ft).

  3. Install the power steering pump and power steering pressure hose to the vehicle.
  4. Reposition the accessory mounting bracket and tighten the accessory mounting bracket mounting bolts and nut.
  5. Tighten
    Tighten the accessory mounting bracket mounting bolts and nut to 50 N·m (37 lb ft).


    Object Number: 288829  Size: SH
  6. Install the power steering pump front mounting bolts.
  7. Tighten
    Tighten the power steering pump front mounting bolts to 50 N·m (37 lb ft).


    Object Number: 288833  Size: SH
  8. Install the power steering pump rear mounting bracket nut to the engine stud.
  9. Tighten
    Tighten the power steering pump rear mounting bracket nut to 41 N·m (31 lb ft).


    Object Number: 288836  Size: SH
  10. Install the filler neck tube.
  11. Install the filler neck tube mounting bolt.
  12. Tighten
    Tighten the filler neck tube mounting bolt to 20 N·m (15 lb ft).


    Object Number: 740899  Size: SH
  13. Connect the lower secondary air injection reactor pipe to the check valve.
  14. Install the lower secondary air injection reactor pipe bracket to the power steering pump bracket stud.
  15. Install the power steering pump mounting bracket retaining nut.
  16. Tighten
    Tighten the power steering pump mounting bracket retaining nut to 41 N·m (31 lb ft).

  17. Connect the lower secondary air injection reactor pipe lower connection.

  18. Object Number: 395852  Size: SH
  19. Connect the power steering cooler hose to the power steering pump.

  20. Object Number: 395770  Size: SH
  21. Connect the power steering pressure hose to the power steering gear.
  22. Tighten
    Tighten the power steering pressure hose to the power steering gear to 30 N·m (22 lb ft).

  23. Install the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .
  24. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls 4.3L.
  25. Remove the drain pan from under the vehicle.
  26. Fill the power steering system.
  27. Bleed the system. Refer to Power Steering System Bleeding .
  28. Inspect the hoses for clearance away from the frame and other components.