GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 781426  Size: SH
  1. Remove the wiper motor module. Refer to Windshield Wiper System Module Replacement.
  2. Remove the fasteners (2) from the wiper motor cover (3).
  3. Carefully remove the wiper motor cover from the wiper motor housing (1).

Installation Procedure

  1. Ensure the wiper motor cover housing sealing surface is clean and dry.
  2. Position the wiper motor cover (3) to the wiper motor housing.

  3. Object Number: 781426  Size: SH

    Note: To ensure proper wiper cover seal to wiper motor housing contact, the cover fasteners need to be equally tightened to the motor housing.

  4. Install the wiper motor cover fasteners (2).
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Tighten the fasteners in an "X" pattern as follows:
  7. Tighten

    1. Tighten the fasteners on the first pass to 0.67 N·m (6 lb in).
    2. Tighten the fasteners on the second pass to 1.35 N·m (12 lb in).
    3. Tighten the fasteners on the third and final pass to 2.0 N·m (18 lb in) to ensure equal sealing pressure is applied to the cover seal.
  8. Install the wiper motor module. Refer to Windshield Wiper System Module Replacement.