GM Service Manual Online
For 1990-2009 cars only

Power Steering Pump Replacement 3.8L

Removal Procedure

  1. Remove the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical-3.8L.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  4. Object Number: 294335  Size: SH
  5. Remove the power steering pressure hose from the power steering pump. Refer to Power Steering Pressure Pipe/Hose Replacement .
  6. Remove the power steering return hose from the power steering pump. Refer to Power Steering Return Hose Replacement .

  7. Object Number: 812357  Size: SH
  8. Remove the electrical connector (4) from the power steering pump (1).

  9. Object Number: 282122  Size: SH
  10. Remove the power steering mounting bolts from the power steering pump.
  11. Remove the power steering pump.
  12. Remove the power steering pump reservoir from the power steering pump. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle .
  13. Remove the power steering pump pulley from the power steering pump. Refer to Power Steering Pump Pulley Replacement .

Installation Procedure

  1. Install the power steering pump reservoir to the power steering pump. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle .
  2. Install the power steering pump pulley to the power steering pump. Refer to Power Steering Pump Pulley Replacement .
  3. Position the power steering pump to the engine.
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 282122  Size: SH
  5. Install the power steering pump mounting bolts.
  6. Tighten
    Tighten the mounting bolts to 34 N·m (25 lb ft).


    Object Number: 294335  Size: SH
  7. Install the power steering pressure hose to the power steering pump. Refer to Power Steering Pressure Pipe/Hose Replacement .
  8. Install the power steering return hose to the power steering pump. Refer to Power Steering Return Hose Replacement .

  9. Object Number: 812357  Size: SH
  10. Install the electrical connector (1) to the power steering pump (4).
  11. Install the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical-3.8L.
  12. Fill the power steering system with fluid. Refer to Checking and Adding Power Steering Fluid .
  13. Bleed the power steering system. Refer to Power Steering System Bleeding .
  14. Inspect the power steering system for leaks. Refer to Power Steering Fluid Leaks .

Power Steering Pump Replacement 3.4L

Removal Procedure

  1. Place a drain pan under the vehicle.
  2. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  3. Remove the power steering pump pulley from the power steering pump. Refer to Power Steering Pump Pulley Replacement .

  4. Object Number: 468952  Size: SH
  5. Remove the ignition wiring harness near the power steering pump.
  6. Disconnect the following components from the power steering pump:
  7. • The power steering pressure line. Refer to Power Steering Pressure Pipe/Hose Replacement .
    • The power steering return hose. Refer to Power Steering Return Hose Replacement .
  8. Remove the power steering pump mounting bolts from the power steering pump.
  9. Remove the power steering pump assembly.
  10. Remove the power steering pump reservoir from the power steering pump. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle .

Installation Procedure


    Object Number: 468952  Size: SH
  1. Install the power steering pump reservoir to the power steering pump. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle .
  2. Position the power steering pump assembly to the engine.
  3. 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.

  4. Install the power steering pump mounting bolts.
  5. Tighten
    Tighten the power steering pump mounting bolts to 34 N·m (25 lb ft).

  6. Connect the following components to the power steering pump:
  7. • The power steering pressure line. Refer to Power Steering Pressure Pipe/Hose Replacement .
    • The power steering return hose. Refer to Power Steering Return Hose Replacement .
  8. Install the ignition control wiring harness at the power steering pump.
  9. Install the power steering pump pulley to the power steering pump. Refer to Power Steering Pump Pulley Replacement .
  10. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  11. Fill the power steering system. Refer to Checking and Adding Power Steering Fluid .
  12. Bleed the power steering system. Refer to Power Steering System Bleeding .
  13. Inspect the system for leaks. Refer to Power Steering Fluid Leaks .
  14. Remove the drain pan from under the vehicle.