Rear HVAC Housing

DISASSEMBLY

NOTE:
The rear heater-A/C housing must be removed from the vehicle for service of the mode door actuator, blend door actuator, blower motor, heater core, blower motor resistor or power module and it must be disassembled for service of the A/C evaporator, mode-air door and the blend-air door.





1. Remove the rear heater-A/C housing and place it on a workbench Rear HVAC Housing.

2. Carefully remove the foam seal (1) from the flange (5) located at the bottom of the rear heater-A/C housing (3). If the seal is deformed or damaged, it must be replaced.

3. If required, remove the rear A/C expansion valve (6) from the rear A/C evaporator A/C Expansion Valve - Removal.

4. Remove the four retaining clips (2) and four screws (4) that secure the flange to the rear heater-A/C housing and remove the flange.





5. Remove the screw (5) that secures the rear heater core tube bracket (4) to the rear heater-A/C housing (1).

6. Release the two retaining tabs (2) that secure the rear heater core and tubes (3) in the rear heater-A/C housing.

7. Carefully pull the rear heater core out of the end of the rear heater-A/C housing. If the foam seals on the heater core are deformed or damaged, they must be replaced.





8. Disconnect the rear heater-A/C wire harness (5) from the rear blower motor resistor or power module (1) (depending on application), rear blower motor (2), rear mode door actuator (3) and the rear blend door actuator (4).

9. Release the retaining tab that secures the connector of the rear heater-A/C wire harness to the rear heater-A/C housing and remove the wire harness from the housing.

10. Remove the rear blower motor resistor or power module (depending on application) Blower Motor Resistor - Removal or Front Blower Motor Power Module - Removal.

11. Remove the rear blower motor Blower Motor - Removal.

12. Remove the rear mode door actuator and rear blend door actuator Mode Door Actuator - Removal and Blend Door Actuator - Removal.





13. Remove the 15 screws (2) and three metal retaining clips (4) that secure the two halves of the rear heater-A/C housing (3) together.

14. Release the three plastic retaining tabs (1) that secure the two halves of the rear heater-A/C housing together and separate the housing halves.





15. Carefully lift the rear A/C evaporator (2) out of the inboard half of the rear heater-A/C housing (3).

16. Remove the mode-air door (4) and blend-air door (1) from the rear heater-A/C housing. If the foam seal on any air-door is deformed or damaged, the air door must be replaced.