GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Park Avenue 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Duct Air Temperature Sensor Replacement - Upper Left Side

Removal Procedure

    Object Number: 262503 Size: SH
  1. Remove the outer instrument panel (I/P) trim covers by pulling outward.
  2. Remove the left I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement - Left Side in Instrument Panel, Gages, and Console.
  3. Remove the right I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement - Right Side in Instrument Panel, Gages, and Console.
  4. Remove the left I/P trim panel. Refer to Instrument Panel Trim Panel Replacement - Left Side in Instrument Panel, Gages, and Console.

    5. Important: Complete removal of the lower I/P trim is not necessary.


    Object Number: 799933 Size: SH
  5. In order to access the air distributor duct screws, remove the upper fasteners retaining the lower I/P trim.
  6. Pull the I/P trim off the studs and lower the trim out of the way.

    7. Object Number: 799928 Size: SH
  7. Remove the 2 screws (1) at the center of the air distributor duct.

    8. Object Number: 799935 Size: SH
  8. Remove the screws at the outboard side of the air distributor duct.

    9. Object Number: 799938 Size: SH
  9. Remove the left air temperature sensor from the air distributor duct by turning the sensor counterclockwise 1/4 turn.
  10. Disconnect the air temperature sensor electrical connector.

Installation Procedure
  1. Connect the air temperature sensor electrical connector to the sensor.

    2. Object Number: 799938 Size: SH
  2. Install the left air temperature sensor into the air distributor duct and turn clockwise 1/4 turn.
  3. Install the air distributor duct .

    4. Object Number: 799935 Size: SH

    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 air distributor duct outboard screws.

    5. Tighten
    Tighten the screws to 2 N·m (17 lb in).


    Object Number: 799928 Size: SH
  5. Install the air distributor duct center screws (1).

    6. Tighten
    Tighten the screws to 2 N·m (17 lb in).

  6. Align the lower I/P trim to the studs.

    7. Object Number: 799933 Size: SH
  7. Install the screws.

    8. Tighten
    Tighten the screws to 10 N·m (89 lb in).

  8. Install the left I/P trim panel. Refer to Instrument Panel Trim Panel Replacement - Left Side in Instrument Panel, Gages, and Console.
  9. Install the right I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement - Right Side in Instrument Panel, Gages, and Console.
  10. Install the left I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement - Left Side in Instrument Panel, Gages, and Console.

    11. Object Number: 262503 Size: SH
  11. Install the I/P outer trim covers.