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 four screws.
  3. Remove the two 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 two mounting brackets (1) and four screws.
  2. Install the HVAC module assembly to the vehicle. Refer to HVAC Module Assembly Replacement.