Rear HVAC Housing

DISASSEMBLY

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





1. Remove the rear HVAC housing and place it on a workbench .
2. Carefully remove the foam seal (1) from the flange (2) located at the bottom of the rear HVAC housing (3). If the seal is deformed or damaged, it must be replaced.
3. Partially bend the inner half of the flange downward and remove the heater core tubes (4) from the flange.





4. Release the two tabs (1) that secure the rear heater core (2) in the rear HVAC housing (3).
5. Carefully pull the rear heater core out of the end of the rear HVAC housing. If the foam seals on the heater core are deformed or damaged, they must be replaced.





6. If required, remove the rear A/C expansion valve (1) from the rear A/C evaporator A/C Expansion Valve - Removal.
7. Remove the four clips (2) and four screws (4) that secure the flange (5) to the bottom of the rear HVAC housing (3) and remove the flange.





8. Disconnect the rear HVAC wire harness (3) from the rear blower motor resistor (1), rear blower motor (2), rear mode door actuator (4) and the rear blend door actuator (6) and remove the wire harness from the rear HVAC housing (5).
9. Remove the rear blower motor resistor .
10. Remove the rear blower motor .
11. Remove the rear mode door actuator and rear blend door actuator Mode Door Actuator - Removal and Blend Door Actuator - Removal.





12. Remove the 15 screws (2) and three metal clips (4) that secure the two halves of the rear HVAC housing (3) together.
13. Release the three plastic retaining tabs (1) that secure the two halves of the rear HVAC housing together and separate the housing halves.





14. Carefully lift the rear A/C evaporator (2) out of the inboard half of the rear HVAC housing (3).
15. Remove the mode-air door (4) and blend-air door (1) from the inboard half of the rear HVAC housing. If the foam seal on any air-door is deformed or damaged, the air door must be replaced.