GM Service Manual Online
For 1990-2009 cars only

Special Tools

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

Removal Procedure


    Object Number: 497992  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.
  3. Remove the wiper transmission. Refer to Windshield Wiper Transmission Replacement.

  4. Object Number: 498001  Size: SH
  5. Remove the 2 bolts retaining the wiper motor.
  6. Remove the wiper motor from the wiper transmission.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 498001  Size: SH
  1. Install the wiper motor onto the wiper transmission with the 2 bolts and tighten to 8 N·m (71 lb in).

  2. Object Number: 498000  Size: SH
  3. Install the wiper transmission assembly. Refer to Windshield Wiper Transmission Replacement.
  4. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement.
  5. Install the wiper arms. Refer to Windshield Wiper Arm Replacement.
  6. Operate the wipers and inspect for proper operation.