GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 4WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Heater and Air Conditioning Control Replacement

Removal Procedure

    Object Number: 280274 Size: SH
  1. Remove the IP cluster trim plate. Refer to Instrument Cluster Trim Panel Replacement in Instrument Panel, Gages and Console.
  2. Remove the retaining screw from the left edge of the HVAC control assembly.
  3. Pivot the HVAC control assembly from the IP.
  4. Remove the HVAC control assembly from the IP in order to access the vacuum and the electrical connectors.

    5. Object Number: 280273 Size: SH
  5. Disconnect the following items from the HVAC control assembly:
    6. • The electrical connectors
    • The vacuum connectors

Installation Procedure

    Object Number: 280273 Size: SH
  1. Connect the following items to the HVAC control assembly:
    2. • The vacuum connectors
    • The electrical connectors

    Object Number: 280274 Size: SH
  2. Align the tab on the HVAC control assembly with the slot in the IP.
  3. Install the HVAC control assembly to the IP.

    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 screw to the HVAC control assembly.

    5. Tighten
    Tighten the screw to 2  N·m (18 lb in).

  5. Install the IP cluster trim plate. Refer to Instrument Cluster Trim Panel Replacement in Instrument Panel, Gages and Console.