GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Rainier 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Temperature Door Replacement

Removal Procedure
  1. Remove the HVAC module assembly (1). Refer to HVAC Module Assembly Replacement .

    2. Object Number: 741189 Size: SH
  2. Remove screws in order to separate the HVAC module assembly.
  3. Remove the screws from the air temperature actuator.
  4. Remove the air temperature actuator.
  5. Remove the screws from the mode actuator.
  6. Remove the mode actuator.
  7. Separate the HVAC module case halves.

    8. Object Number: 735973 Size: SH
  8. Remove the air temperature door (1) from the lower module half.

Installation Procedure

    Object Number: 735973 Size: SH
  1. Install the air temperature door (1) to the lower module half.
  2. Assemble the HVAC module case halves.
  3. Install the mode actuator.

    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.

  4. Install the screws to the mode actuator.

    5. Tighten
    Tighten the screws to 1.9 N·m (17 lb in).

  5. Install the air temperature actuator.
  6. Install the screws to the air temperature actuator.

    7. Tighten
    Tighten the screws to 1.9 N·m (17 lb in).


    Object Number: 741189 Size: SH
  7. Install the screws in order to assemble the HVAC module.

    8. Tighten
    Tighten the screws to 1.9 N·m (17 lb in).

  8. Install the HVAC module assembly (1). Refer to HVAC Module Assembly Replacement .