Dodge Durango
 Service Manual
Heating and Air Conditioning » Description and operation


The filter-drier is mounted on the right front wheelhouse front extension in the engine compartment, in the liquid line between the condenser outlet and the evaporator inlet. Refrigerant enters the filter- drier as a high-pressure, high-temperature liquid.


The filter-drier performs a filtering action to prevent foreign material in the refrigerant from contaminating the expansion valve. A desiccant bag is mounted inside the filter-drier canister to absorb any moisture which may have entered and become trapped within the refrigerant system. In addition, during periods of high demand air conditioner operation, the filter-drier acts as a reservoir to store surplus refrigerant.

The filter-drier cannot be repaired. If the filterdrier is faulty or damaged, or if the refrigerant system has been contaminated or left open to the atmosphere for an indeterminable period, it must be replaced.

    More about «Description and operation»:

    Blower motor

    Blower motor relay

    Blower motor resistor

    Blower motor switch


    Compressor clutch

    Compressor clutch relay


    Electronic cycling clutch switch

    Evaporator coil

    Expansion valve


    Heater and air conditioner

    Heater and air conditioner control

    Heater core

    High pressure cut-off switch

    High pressure relief valve

    Low pressure cut-off switch

    Rear overhead air conditioner


    Refrigerant lines

    Refrigerant line couplers

    Refrigerant oil

    Refrigerant system service ports

    Vacuum check valve

    Vacuum reservoir

    Dodge Durango Service Manual / Heating and Air Conditioning / Description and operation / Filter-drier

    Dodge Durango Service Manual


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