GM Service Manual Online
For 1990-2009 cars only

Power Steering Fluid Reservoir Replacement - Off Vehicle P Series

Disassembly Procedure


    Object Number: 447978  Size: SH
  1. Drain the power steering fluid from the power steering pump.
  2. Remove the pump mounting studs (2).
  3. Remove the connector and fitting assembly (4).
  4. Remove the O-ring seal (3).

  5. Object Number: 447982  Size: SH
  6. Remove the reservoir assembly (1) from the pump housing assembly (2).

  7. Object Number: 447957  Size: SH
  8. Remove the O-ring seals (1) (4) (5).
  9. Remove the magnet (3).
  10. Clean the magnet (3).
  11. Inspect the welch plug in the power steering pump housing (2). Do not remove. If the welch plug is deformed or dislodged, replace the power steering pump housing (2).

Assembly Procedure


    Object Number: 447957  Size: SH

    Important: Use new O-ring seals when assembling the power steering pump assembly.

  1. Lubricate the O-ring seals (1) (4) (5) with power steering fluid.
  2. Install the O-ring seals (1) (4) (5) to the pump housing assembly.
  3. Install the magnet (3) to the pump housing assembly (2).

  4. Object Number: 447982  Size: SH
  5. Connect the reservoir assembly (1) to the pump housing assembly (2).

  6. Object Number: 447978  Size: SH
  7. Install the O-ring seal.
  8. Notice: Refer to Fastener Notice in the Preface section.

  9. Install the connector and fitting assembly (4) to the pump housing (1).
  10. Install the pump mounting studs (2) to the pump housing (1).

    Tighten

    • Tighten the pump mounting studs (2) to 58 N·m (43 lb ft).
    • Tighten the connector and fitting assembly (4) to 75 N·m (55 lb ft).

Power Steering Fluid Reservoir Replacement - Off Vehicle CB Series

Disassembly Procedure


    Object Number: 482358  Size: SH
  1. Place the hydraulic pump (1) on a fixed, flat surface, with the shaft facing upward.
  2. Insert a screwdriver into the retaining clip tab (3).
  3. Using the screwdriver, force the retaining clip tab (3) outward.
  4. Slide the reservoir clip (4) away from the hydraulic pump assembly (1).
  5. Repeat the above steps to remove the second reservoir clip (4).
  6. Remove the reservoir (2) from the hydraulic pump housing (1).
  7. Remove the O-ring seal from the neck of the reservoir (2) or inside the hydraulic pump housing (1). Discard the O-ring seal.

Assembly Procedure


    Object Number: 482357  Size: SH
  1. Lubricate the new O-ring seal with power steering fluid.
  2. Install the new O-ring seal onto the neck of the reservoir (2).
  3. Install the reservoir (2) onto the hydraulic pump assembly (1). Ensure the reservoir neck is completely engaged onto the hydraulic pump assembly (1).
  4. Align the feet of the reservoir with the sides of the hydraulic pump housing.
  5. Install the new reservoir retaining clips (4) (supplied with the pump). Ensure the retaining clip tabs (3) fully engage with the hydraulic pump housing (1).