GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 39232 Wiper Transmission Separator


    Object Number: 641571  Size: SH
  1. Remove the wiper arms. Refer to Wiper Arm Replacement.
  2. Remove the plenum chamber water deflector. Refer to Plenum Chamber Water Deflector Replacement in Body Front End.
  3. Disconnect the electrical connector from the wiper motor.
  4. Remove the three bolts and the wiper drive system module from the vehicle.

  5. Object Number: 306506  Size: SH
  6. Remove the wiper transmission from the wiper motor crank arm using the J 39232.

  7. Object Number: 641573  Size: SH
  8. Remove the caps from the wiper transmission.
  9. Remove the four screws and the wiper transmission from the tube frame.

Installation Procedure

Tools Required

J 39529 Wiper Transmission Installer


    Object Number: 641573  Size: SH
  1. Install the wiper transmission onto the tube frame with the four screws.
  2. Tighten
    Tighten the screws to 9 N·m (79 lb in).

  3. Install the caps onto the wiper transmission.

  4. Object Number: 306515  Size: SH
  5. Install the wiper transmission onto the wiper motor crank arm using the J 39529.

  6. Object Number: 641571  Size: SH
  7. Install the wiper drive system module onto the vehicle with the three bolts.
  8. Tighten
    Tighten the screws to 10 N·m (88 lb in).

  9. Connect the electrical connector onto the wiper motor.
  10. Install the plenum chamber water deflector. Refer to Plenum Chamber Water Deflector Replacement in Body Front End.
  11. Install the wiper arms. Refer to Wiper Arm Replacement.
  12. Operate the wipers and inspect for proper operation.