GM Service Manual Online
For 1990-2009 cars only

Auxiliary Mode Valve Actuator Replacement for Pontiac Trans Sport 1998

Removal Procedure

  1. Remove the left side rear quarter trim. Refer to Rear Quarter Lower Trim Panel Replacement in Interior Trim.

  2. Object Number: 401095  Size: SH
  3. Disconnect the vacuum line (3) from the vacuum actuator.

  4. Object Number: 400635  Size: SH
  5. Remove the vacuum actuator from the HVAC module by unsnapping the retainer tab from the mounting.

Installation Procedure


    Object Number: 400635  Size: SH
  1. Install the vacuum actuator to the HVAC module.

  2. Object Number: 401095  Size: SH
  3. Connect the vacuum line (3) to the vacuum actuator.
  4. Install the left side rear quarter trim. Refer to Rear Quarter Lower Trim Panel Replacement in Interior Trim.