GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Trans Sport Ext. 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Auxiliary Mode Valve Actuator Replacement

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
  2. Disconnect the vacuum line (3) from the vacuum actuator.

    3. Object Number: 400635 Size: SH
  3. 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
  2. Connect the vacuum line (3) to the vacuum actuator.
  3. Install the left side rear quarter trim. Refer to Rear Quarter Lower Trim Panel Replacement in Interior Trim.