GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 39232 Wiper Transmission Separator
    • J 39529 Wiper Transmission Installer

Removal Procedure


    Object Number: 306506  Size: SH
  1. Remove the wiper arms. Refer to Windshield Wiper Arm Replacement .
  2. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  3. Disconnect the transmission drive link from the wiper motor crank arm using the J 39232 .

  4. Object Number: 439162  Size: SH
  5. Remove the wiper motor electrical connector.
  6. Remove the three bolts.
  7. Remove the wiper motor from the vehicle.

Installation Procedure


    Object Number: 439162  Size: SH
  1. Install the wiper motor on the vehicle.
  2. 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.

  3. Install the 3 bolts.
  4. Tighten
    Tighten the 3 bolts to 7.0 N·m (62 lb in).

  5. Connect the wiper motor electrical connector.

  6. Object Number: 429902  Size: SH

    Important: Assemble the wiper transmission to the crank arm past the second detent so that the seal is compressed to a maximum height of 25.5 mm (1.0 in).

    Lubricate the inside of the socket with a lithium-based grease (GM P/N 1050109, 1052196 or equivalent).

  7. Connect the transmission drive link to the crank arm using the J 39529 .
  8. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  9. Install the wiper arms. Refer to Windshield Wiper Arm Replacement .