GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Regal 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Temperature Door Replacement - Left Side

Removal Procedure
  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement .
  2. Remove the left air temperature actuator.
  3. Remove the air inlet housing retaining screws.
  4. Remove the air inlet housing.
  5. Remove the HVAC module assembly upper mounting screws.

    6. Object Number: 295357 Size: SH
  6. Release the retaining tab (1) securing the HVAC module assembly halves.
  7. Separate the upper and lower module halves.

    8. Object Number: 296249 Size: SH
  8. Remove the HVAC module assembly seal that is located between the upper and lower cases (2).
  9. Remove the left air temperature door.

Installation Procedure
  1. Install the left air temperature door.

    2. Object Number: 296253 Size: SH
  2. Install the new case seal (2) to the HVAC module assembly case (1).
  3. Wet the upper evaporator core seal with water.

    4. Important: Inspect the condition of the retaining tab on the upper module case prior to installing the lower module case. If the retaining tab is broken or damaged, install an external retaining clip (P/N 52458793, or equivalent).


    Object Number: 295357 Size: SH
  4. Align and install the upper module case to the lower module case.

    5. Align and secure the retaining tab (1).

    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 HVAC module assembly upper mounting screws.

    6. Tighten
    Tighten the HVAC module assembly upper mounting screws to 1.6 N·m (14 lb in).

  6. Install the air inlet housing.
  7. Install the air inlet housing retaining screws.

    8. Tighten
    Tighten the air inlet housing retaining screws to 1.6 N·m (14 lb in).

  8. Install the left air temperature actuator.
  9. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement .