GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 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 IP trim covers by pulling outward.
  2. Remove the left IP accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement - Left Side in Instrument Panel, Gages and Console.
  3. Remove the right IP accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement - Right Side in Instrument Panel, Gages and Console.
  4. Remove the left IP trim panel. Refer to Instrument Panel Trim Panel Replacement - Left Side in Instrument Panel, Gages and Console.

    5. Important: It is not necessary to completely remove the lower IP trim.


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

    7. Object Number: 799928 Size: SH
  7. Remove the two 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 counter-clockwise 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 IP trim to the studs.

    7. Object Number: 799933 Size: SH
  7. Install thescrews.

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

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