GM Service Manual Online
For 1990-2009 cars only

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).