GM Service Manual Online
For 1990-2009 cars only

Tools Required

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

Removal Procedure

  1. Place the wiper arms in the 1/2 wipe position.
  2. Turn the ignition key to the OFF position.

  3. Object Number: 751297  Size: SH
  4. Remove the wiper arms. Refer to Windshield Wiper Arm Replacement .
  5. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement in Body Front End.

  6. Object Number: 1272635  Size: SH
  7. Disconnect the electrical connector (3) for the wiper motor.
  8. Push the electrical harness grommet (1) through the plenum panel into the cowl.

  9. Object Number: 1272633  Size: SH
  10. Remove the transmission fasteners (1, 4). Twist the transmission assembly in order to remove the transmission assembly from the cowl.
  11. Remove the transmission (3) from the vehicle through the access openings in the top of the cowl.

Installation Procedure


    Object Number: 1272635  Size: SH
  1. Install the transmission (3) to the cowl area of the plenum. A slight twisting motion is needed in order to install.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the transmission mounting bolts (1, 4).
  4. Tighten
    Tighten the wiper transmission mounting bolts to 9 N·m (81 lb in).


    Object Number: 1272633  Size: SH
  5. Position the electrical harness grommet to the plenum panel hole (5).
  6. Pull the harness toward the front of the vehicle in order to seat the harness grommet.
  7. Connect the electrical connector.
  8. Install the connector position assurance tab (CPA) to the harness connector.
  9. Cycle the wiper system 1 time with the wiper motor switch.
  10. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  11. Install the wiper arms. Refer to Windshield Wiper Arm Replacement .
  12. Test the wiper system.