GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 39232 Wiper Transmission Separator


    Object Number: 306506  Size: SH
  1. Remove the wiper arm and blades. Refer to Windshield Wiper Arm Replacement .
  2. Disconnect the washer hose.
  3. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement
  4. Remove the transmission drive link socket from the wiper motor crank arm using the J 39232 Wiper Transmission Separator.

  5. Object Number: 415971  Size: SH
  6. Disconnect the electrical connectors from the wiper motor.

  7. Object Number: 415975  Size: SH
  8. Remove three screws.
  9. Remove the wiper motor and the seal while guiding the crank arm through the hole.

Installation Procedure

Tools Required

J 39529 Wiper Transmission Installer

    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.


    Object Number: 415975  Size: SH
  1. Install the wiper motor and the seal while guiding the crank arm through the hole.
  2. Install three screws.
  3. Tighten
    Tighten the screws to 9 N·m (80 lb in).


    Object Number: 415971  Size: SH
  4. Connect the electrical connectors to the wiper motor.

  5. Object Number: 306515  Size: SH
  6. Install the transmission drive link socket to the wiper motor crank arm ball using the J 39529 Wiper Transmission Installer. Be sure the socket is fully seated on the ball.
  7. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  8. Install the wiper arms and blades. Refer to Windshield Wiper Arm Replacement .