GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2000 🢒 Catera 🢒 Body and Accessories 🢒 Wipers/Washer Systems 🢒 Windshield Wiper Transmission Replacement

Removal Procedure

    Object Number: 159509 Size: SH
  1. Remove the air inlet grilles. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  2. Remove two support bracket screws from the air inlet grille. Lift up on the windshield glass seal in order to expose the screws.
  3. Remove the power brake booster vacuum hose. Refer to Vacuum Brake Booster Hose Replacement in Hydraulic Brakes.
  4. Unclip the knock sensor and the fuel injection harness from the engine lift bracket.
  5. Disconnect the wiring harness connector from the windshield wiper motor.
  6. Remove the upper link (1) of the transmission from the motor crank arm (6).

    7. Object Number: 159508 Size: SH
  7. Remove the transmission screws.
  8. Remove the transmission with the motor.

    9. Object Number: 159509 Size: SH
  9. Remove the crank arm nut (7) from the wiper motor.
  10. Remove the crank arm (6).
  11. Remove the transmission lower link (3) from the windshield wiper transmission (2).
  12. Remove the motor bracket bolts (5) from the windshield wiper transmission.
  13. Remove the motor (4) from the windshield wiper transmission.

Installation Procedure

    Object Number: 159509 Size: SH
  1. Install the motor (4) to the windshield wiper transmission (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.

  2. Install the motor bracket bolts (5) to the windshield wiper transmission.

    3. Tighten
    Tighten the bolts to 4 N·m (35 lb in).

  3. Install the transmission lower link (3) to the windshield wiper transmission.
  4. Install the wiper motor crank arm (6).
  5. Install the crank arm nut (7).

    6. Tighten
    Tighten the nut to 14 N·m (10 lb ft).


    Object Number: 159508 Size: SH
  6. Install the windshield wiper transmission with the motor.
  7. Install the transmission screws.

    8. Tighten
    Tighten the screws to 4 N·m (35 lb in).


    Object Number: 159509 Size: SH
  8. Install the upper link (1) to the windshield wiper transmission.
  9. Connect the wiring harness connector to the windshield wiper motor.
  10. Attach the knock sensor and the fuel injection harness to the engine lift bracket.
  11. Install the support bracket to the air inlet grille.
  12. Install the support bracket screws.

    13. Tighten
    Tighten the screws until fully seated but not stripped.

  13. Install the power brake booster vacuum hose. Refer to Vacuum Brake Booster Hose Replacement in Hydraulic Brakes.
  14. Install the air inlet grilles. Refer to Air Inlet Grille Panel Replacement in Body Front End.