Auxiliary Climate Control

EVAPORATOR CORE

REMOVAL

CAUTION: Refrigerant compressor oil F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant system O-ring seals only and should not be added to R-134a refrigerant systems as an A/C compressor lubricant. PAG refrigerant compressor oil F7AZ-19D589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.

NOTE: If an evaporator core leak is suspected, the evaporator core must be vacuum leak tested before it is removed from the vehicle.

1. Remove the auxiliary climate control housing.







2. Remove the A/C evaporator core.







3. Remove the thermostatic expansion valve (TXV).

INSTALLATION

1. NOTE: Make sure to correctly assemble and seal the air conditioning and heater assembly to allow efficient operation of the auxiliary climate control system.

To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean mineral oil.