GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Steering 🢒 Power Steering 🢒 Power Steering Pump Replacement

Power Steering Pump Replacement L26

Removal Procedure
  1. Remove the accessory drive belt. Refer to Drive Belt Replacement.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

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

    6. Object Number: 812357 Size: SH
  6. Disconnect the harness connector (4) from the power steering pump (1).

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

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. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 282122 Size: SH
  4. Install the power steering pump mounting bolts.

    5. Tighten
    Tighten the bolts to 25 N·m (18 lb ft).


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

    7. Object Number: 812357 Size: SH
  7. Install the harness connector (1) to the power steering pump (4).
  8. Install the accessory drive belt. Refer to Drive Belt Replacement.
  9. Fill the power steering system with fluid. Refer to Checking and Adding Power Steering Fluid.
  10. Bleed the power steering system. Refer to Power Steering System Bleeding.
  11. Operate the power steering system and inspect for power steering system leaks. Refer to Power Steering Fluid Leaks.

Power Steering Pump Replacement LS4


Object Number: 1571707 Size: MF

Callout

Component Name

Preliminary Procedure

Remove the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement.

1

Power Steering Pump Hose Clamp

Tip

    • Using the appropriate tool, remove the power steering fluid from the reservoir before relocating the clamp.
    •  Plug the end of the hose between the reservoir and the power steering pump to limit the leakage of the power steering fluid.

2

Power Steering High Pressure Hose Fitting

Caution: Refer to Fastener Caution in the Preface section.

Tighten
27 N·m (20 lb ft)

3

Power Steering Pump Bolt (Qty: 3)

Tighten
25 N·m (18 lb ft)

4

Power Steering Pump