GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 35582 Oil Pump Seal Installer


    Object Number: 749574  Size: SH
  1. Apply automatic transmission fluid to the inner fluid pump seal surface of the fluid pump body.
  2. Using J 35582 , install a new fluid pump seal assembly (200). The seal end should be flush with the outer edge of the fluid pump body.

  3. Object Number: 749555  Size: SH
  4. Apply automatic transmission fluid to the surface of the fluid pump body.
  5. Important: The index mark (dot) on the fluid pump drive gear (205) is installed down, (see insert). The index mark (dot) on the fluid pump driven gear (204) is installed up.

  6. Install the fluid pump drive gear (205) and the fluid pump driven gear (204) to the fluid pump body (202).

  7. Object Number: 874476  Size: SH
  8. Apply automatic transmission fluid to the new fluid pump O-ring seal (206).
  9. Install the new fluid pump O-ring seal (206) onto the fluid pump body (202).
  10. Important: Be sure to align the holes properly when installing the fluid pump plate (207).

  11. Align the fluid pump plate (207) holes with the alignment pins (203) in the fluid pump body (202).

  12. Object Number: 749551  Size: SH
  13. Align the fluid pump stator shaft assembly (208) with each bolt hole of the fluid pump plate (207).
  14. Install, and hand tighten, 12 of the 13 - M6 x 1.0 x 14.5 mm fluid pump cover bolts (231) and 1 - M5 x 0.8 x 17 mm fluid pump cover bolt (232).

  15. Object Number: 749553  Size: SH
  16. Leave out the remaining M6 x 1.0 x 14.5 mm fluid pump cover bolt (231) from the hole indicated by the arrow in the graphic. Set the bolt aside to be installed later.
  17. 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.

  18. Tighten the fluid pump cover bolts in sequence.
  19. Tighten

        • Tighten the 12 - M6 x 1.0 x 14.5 mm fluid pump cover bolts (231) to 12 N·m (106 lb in).
        • Tighten the 1 - M5 x 0.8 x 17 mm fluid pump cover bolt (232) to 7 N·m (62 lb in).

    Object Number: 749576  Size: SH
  20. Inspect the fluid pump gears for rotating smoothly.
  21. 12.1. Install the fluid pump assembly on the torque converter.
    12.2. Rotate the body of the fluid pump assembly.
    12.3. Ensure the fluid pump seal was not damaged.