GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 243223  Size: SH
  1. Remove the HVAC module assembly from the vehicle. Refer to HVAC Module Assembly Replacement .
  2. Remove the 4 screws.
  3. Remove the 2 heater core mounting brackets (1).
  4. Remove the heater core from the HVAC module assembly.

Installation Procedure


    Object Number: 243223  Size: SH
  1. Install the heater core to the HVAC module assembly. Secure with the 2 mounting brackets (1) and 4 screws.
  2. Install the HVAC module assembly to the vehicle. Refer to HVAC Module Assembly Replacement .