GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Defroster Door Replacement

Removal Procedure
  1. Remove the I/P carrier. Refer to Instrument Panel Carrier Replacement.
  2. Remove the heater assembly cover retaining screws.
  3. Remove the heater assembly cover.

    4. Object Number: 668959 Size: SH
  4. Disconnect the vacuum hose (1) from the defrost actuator (2).
  5. Depress the clip and remove the defrost actuator (2) from the heater assembly.

    6. Object Number: 691843 Size: SH
  6. Remove the defroster door (2) door from the heater assembly (1).

Installation Procedure

    Object Number: 691843 Size: SH
  1. Install the defroster door (2) to the heater assembly (1).

    2. Object Number: 668959 Size: SH
  2. Install the defrost actuator (2) to the heater assembly.
  3. Connect the vacuum hose (1) to the defrost actuator (2).
  4. Install the heater assembly cover.

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the heater assembly cover retaining screws.

    6. Tighten
    Tighten screws to 1.9 N·m (17 lb in).

  6. Install the I/P carrier. Refer to Instrument Panel Carrier Replacement.