Montana SV6 V6-3.9L (2007)
Housing Assembly HVAC: Service and Repair
HVAC Module Assembly Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedure
1. Recover the refrigerant from the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging.
2. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill LZ9) Draining and Filling Cooling System (Vac-N-Fill).
Important: The defroster door must be closed to allow clearance during defroster duct removal.
3. Set the heating, ventilation and air conditioning (HVAC) controls in the vent setting to close the defroster door.
4. Remove the blower motor.
5. Disconnect the electrical connector from the blower motor resistor.
6. Disconnect the electrical connector from the evaporator temperature sensor.
7. Disconnect all of the HVAC actuator electrical connectors.
8. Remove the instrument panel (I/P) carrier.
9. Remove the evaporator outlet tube nut.
10. Disconnect the evaporator outlet tube and evaporator inlet tube from the thermal expansion valve (TXV).
11. Remove and discard the sealing washers.
12. Remove the heater inlet and outlet hoses.
13. Remove the HVAC module nuts.
