GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 991028  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the drain plug and drain fluid. Allow at least 5 minutes for the fluid to drain completely.
  3. Remove the gasket from the drain plug and discard.

Installation Procedure


    Object Number: 991028  Size: SH
  1. Install the new gasket on the drain plug.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the drain plug.
  4. Tighten
    Tighten the drain plug to 40 N·m (30 lb ft).

  5. Make sure vehicle is level .

  6. Object Number: 1875910  Size: SH
  7. Remove the fluid level indicator bolt and indicator.
  8. Important: Always use ESSO JWS 3309 US ATF.

    Important: Do not remove the anchor bolt located on top of the transaxle for checking fluid or adding fluid. Removing the bolt will dislocate internal components and require the transaxle to be removed from the vehicle and disassembled for repair.

    Notice: Do not remove the 3rd gear anchor band bolt located on top of the transmission for checking fluid or adding fluid. Removing the bolt will dislocate internal components and require the transmission to be removed from the vehicle and disassembled for repair.

  9. Add the transaxle fluid to the transaxle, using the fluid level indicator location.
  10. Start engine and operate vehicle until transaxle fluid temperature reaches 70-80°C (158-176°F).

  11. Object Number: 1875914  Size: SH
  12. Apply parking brake.
  13. Depress brake pedal and move shift lever slowly through all gear ranges from park (P) to low range, pausing for about 3 seconds in each range. Return shift lever to park (P) range at idle condition.
  14. Pull level gauge out again and check if fluid level is within the HOT range.
  15. Install the fluid level indicator.