GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the left instrument panel (I/P) insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gages, and Console.
  2. Remove the knee bolster bracket bracket. Refer to Driver Knee Bolster Bracket Replacement or to Passenger Knee Bolster Bracket Replacement in Instrument Panel, Gages, and Console.
  3. Disconnect the electrical connector from the left air temperature actuator.
  4. Remove the mounting screws from the left air temperature actuator.

  5. Object Number: 833461  Size: SH
  6. Remove the left air temperature actuator.

Installation Procedure


    Object Number: 833461  Size: SH
  1. Position the left air temperature actuator. Align the slots in the electric actuator driver to the flats on the shaft.
  2. Align the locating hole to the alignment pin on the HVAC module case.
  3. Slide the actuator on the shaft. The actuator driver should seat completely onto the shaft and the mounting holes should be flush with the mounting screws on the HVAC module case.
  4. 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.

  5. Install the mounting screws to the left air temperature actuator.
  6. Tighten
    Tighten the screws to 1.5 N·m (13 lb in).

  7. Connect the electrical connector to the left air temperature actuator.
  8. Install the knee bolster bracket bracket. Refer to Driver Knee Bolster Bracket Replacement or to Passenger Knee Bolster Bracket Replacement in Instrument Panel, Gages, and Console.
  9. Install the left I/P insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gages, and Console.
  10. Calibrate the actuator. Refer to Actuator Recalibration in HVAC Systems - Manual.