GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Park Avenue 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Inside Air Temperature Sensor Aspirator Replacement

Removal Procedure
  1. Remove the left side sound insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gages and Console.
  2. Remove the aspirator hose at the muffler.

    3. Object Number: 419253 Size: SH
  3. Remove the aspirator mounting bolt.
  4. Use a flat blade tool to pry the aspirator out of the HVAC case.

Installation Procedure

    Object Number: 419253 Size: SH
  1. Install the aspirator into the HVAC case.

    2. 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.

  2. Install the bolt.

    3. Tighten
    Tighten the bolt to 1.2 N·m (12 lb in).

  3. Connect the aspirator hose to the muffler.
  4. Install the left side sound insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gages and Console.