GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 GTO 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Defroster Valve Actuator Replacement

Removal Procedure

    Object Number: 1378882 Size: SH
  1. Remove the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.
  2. Lower the instrument panel (I/P) lower trim panel assembly.
  3. Remove the clip (1), spacers (2) and actuator rod (4) from the lever (3).
  4. Disconnect the vacuum line (6) from the actuator (5).
  5. Remove the retaining screws (7) from the actuator.
  6. Remove the actuator from the HVAC unit.

Installation Procedure

    Object Number: 1378882 Size: SH
  1. Install the actuator (5) to the HVAC unit.

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

  2. Secure the actuator to the HVAC unit with the retaining screws (7).

    3. Tighten
    Tighten the nuts to 4 N·m (35 lb in).

  3. Connect the vacuum line (6) to the actuator.
  4. Install the clip (1), spacers (2) and actuator rod (4) to the lever (3).
  5. Install the I/P lower trim panel assembly.
  6. Install the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.