GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the heater pipe assembly. Refer to Heater Pipes Replacement.

  2. Object Number: 945438  Size: SH
  3. Remove the HVAC module drain tube (1) from the HVAC module.

Installation Procedure

    Important: Ensure that the HVAC module drain tube is fully seated onto the HVAC module.


    Object Number: 945438  Size: SH
  1. Install the HVAC module drain tube (1) to the HVAC module.
  2. Install the heater pipe assembly. Refer to Heater Pipes Replacement.