Savana 3500 V8-4.8L (2009)
Control Module HVAC: Service and Repair
Auxiliary HVAC Module Replacement
Auxiliary HVAC Module Replacement
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (See: Heating and Air Conditioning/Service and Repair/Refrigerant
Recovery and Recharging).
2. Drain the engine coolant. Refer to Cooling System Draining and Filling (Static Fill) (See: Engine, Cooling and Exhaust/Cooling System/Service
and Repair)Cooling System Draining and Filling (Vac N Fill) (See: Engine, Cooling and Exhaust/Cooling System/Service and Repair).
3. Remove the left rear quarter trim panel. Refer to Body Side Trim Panel Replacement - Left Side (See: Body and Frame/Interior Moulding /
Trim/Trim Panel/Service and Repair).
4. Remove the left rear corner garnish molding. Refer to Body Rear Corner Garnish Molding Replacement (See: Body and Frame/Interior Moulding
/ Trim/Trim Panel/Service and Repair).
5. Remove the air distribution duct upper. Refer to Auxiliary Air Distributor Duct Replacement - Upper (See: Heating and Air Conditioning/Air
Duct/Service and Repair/Auxiliary Air Distributor Duct Replacement - Upper).
6. Remove the air distribution duct lower. Refer to Auxiliary Air Distributor Lower Duct Replacement (See: Heating and Air Conditioning/Air
Duct/Service and Repair/Auxiliary Air Distributor Lower Duct Replacement).
7. Disconnect the electrical connectors from the auxiliary HVAC module (1).
8. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
9. Remove the cover from the underside of the auxiliary HVAC module.
10. Remove the one retaining nut in order to remove the auxiliary evaporator underbody rear tube assembly from the core.
11. Disconnect the heater lines from the underside of the auxiliary HVAC module.
12. Remove the retaining nuts from the underside of the auxiliary HVAC module.
