GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Temperature Valve Actuator Replacement

Removal Procedure
  1. Roll back the instrument panel. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gages and Console.
  2. Disconnect the electrical connector from the temperature actuator.

    3. Object Number: 258026 Size: SH
  3. Remove the screws from the air temperature actuator.
  4. Remove the actuator from the HVAC module.

Installation Procedure

    Object Number: 258026 Size: SH
  1. Install the air temperature actuator to the HVAC module.

    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 screws to the air temperature actuator.

    3. Tighten
    Tighten the screws to 2 N·m (18 lb in).

  3. Connect the electrical connector to the HVAC control assembly.
  4. Roll the instrument panel compartment forward. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gages and Console.