GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 159509  Size: SH
  1. Remove the windshield wiper transmission. Refer to Windshield Wiper Transmission Replacement
  2. Remove the windshield wiper transmission upper link (1) from the windshield wiper motor crank arm (6).
  3. Unclip the wiper motor harness connector from the wiper transmission assembly.
  4. Remove the windshield wiper transmission nut (7) from the motor (4).
  5. Remove the wiper motor crank arm (6) from the wiper motor (4).
  6. Remove the wiper motor bracket bolts (5) from the wiper motor (4).
  7. Remove the wiper motor (4) from the wiper transmission assembly (2).

Installation Procedure


    Object Number: 159509  Size: SH
  1. Install the wiper motor (4) to the wiper transmission assembly (2).
  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 wiper motor bracket bolts (5) to the wiper motor (4).
  4. Tighten
    Tighten the wiper motor bolts until fully seated but not stripped.

  5. Install the wiper motor crank arm (6) to the wiper motor (4).
  6. Install the wiper motor crank arm nut (7) to the wiper motor (4).
  7. Tighten
    Tighten the wiper motor crank arm nut until fully seated and not stripped.

  8. Clip the wiper motor harness connector to the wiper transmission assembly.
  9. Install the wiper transmission upper link (1) to the wiper motor crank arm (6).
  10. Install the windshield wiper transmission. Refer to Windshield Wiper Transmission Replacement