GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.
  2. Remove the screws from the HVAC module assembly.
  3. Remove the screw from the mode cam.
  4. Remove the mode cam from the HVAC module assembly.

  5. Object Number: 888407  Size: SH
  6. Separate the HVAC module assembly halves (1 and 4).
  7. Remove the mode door linkage from the mode door.
  8. Remove the mode door (1) from the HVAC module assembly.

Installation Procedure


    Object Number: 888407  Size: SH
  1. Install the mode door to the HVAC module assembly.
  2. Install the mode door linkage to the mode door.
  3. Assemble the HVAC module assembly halves (1 and 4).
  4. Install the mode cam to the HVAC module assembly.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the mode cam screw. Tighten the screw to 1.9 N·m (18 lb in).
  7. Install the screws to the HVAC module assembly. Tighten the screws to 1.9 N·m (18 lb in).
  8. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.