Grand Prix V8-5.3L (2007)
Evaporator Core: Service and Repair
Evaporator Core Replacement
Removal Procedure
1. Remove the HVAC module assembly.
2. Remove the screws that secure the recirculation housing to the HVAC module assembly.
3. Remove the recirculation housing from the HVAC module assembly.
4. Remove the screws that secure the mode actuator to the HVAC module assembly.
5. Remove the mode actuator from the HVAC module assembly.
6. Remove the bolts that secure the TXV to the evaporator core.
7. Remove the TXV from the evaporator core.
8. Discard the old seal rings from the evaporator core.
9. Remove the screws that secure HVAC module assembly upper case to the HVAC module assembly lower case.
10. Remove the heat stakes that secure the HVAC module assembly upper case to the HVAC module lower case using a small chisel.
11. Separate the HVAC module assembly case (1).
12. Remove the evaporator core.
Installation Procedure
1. If replacing the evaporator, add refrigerant oil to the evaporator. Refer to Refrigerant System Capacities for system capacity information.
