GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Defroster Door Replacement

Removal Procedure
  1. Remove the I/P trim pad. Refer to Instrument Panel Upper Trim Pad Replacement in Instrument Panel, Gages and Console.
  2. Remove the defroster door vacuum actuator.

    3. Object Number: 395301 Size: SH
  3. Remove the air distribution case cover retaining screws.
  4. Remove the air distribution case cover.
  5. Remove and discard the air distribution case seal.
  6. Remove the linkage between the air temperature door and the heater door on the left side of the HVAC module assembly.
  7. Remove the defroster door.

Installation Procedure

    Object Number: 395301 Size: SH
  1. Install the defroster door.
  2. Connect the linkage between the air temperature door and the heater door.
  3. Install a new air distribution case seal
  4. Install the air distribution case cover.

    5. 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.

  5. Install the air distributor case cover retaining screws.

    6. Tighten
    Tighten the screws to 1.6 N·m (14 lb in).

  6. Install the defroster door vacuum actuator.
  7. Install the I/P trim pad. Refer to Instrument Panel Upper Trim Pad Replacement in Instrument Panel, Gages and Console.