GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 39232 Wiper Linkage Separator
    • J 39529 Wiper Linkage Installer

Removal Procedure


    Object Number: 798591  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. Remove the transmission drive link from the wiper motor crank arm using the J 39232 .

  4. Object Number: 585862  Size: SH
  5. Remove the 6 bolts.

  6. Object Number: 585853  Size: SH
  7. Remove the wiper transmission assembly by guiding it through the access hole in the upper plenum panel.

Installation Procedure


    Object Number: 585853  Size: SH
  1. Position the wiper transmission assembly in the plenum chamber through the air inlet shroud upper panel openings.

  2. Object Number: 585862  Size: SH

    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 6 bolts.
  4. Tighten
    Tighten the bolts to 8 N·m (71 lb in).


    Object Number: 798594  Size: SH
  5. Install the transmission drive link socket to the wiper motor crank arm ball using the J 39529 .
  6. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  7. Install the wiper arms. Refer to Windshield Wiper Arm Replacement .