CAUTION: Refrigerant Compressor Oil (Mineral 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.

NOTE: Failure to correctly install the evaporator core seal when installing the evaporator core will result in decreased A/C cooling efficiency due to airflow bypassing the evaporator core.

NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.

NOTE: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

NOTE: New O-ring seals, lubricated in clean mineral oil, must be installed before reconnecting any A/C fitting which has been disconnected.

NOTE: Lubricate the coolant hoses with plain water only if needed.

1. Remove the instrument panel. For additional information, refer to Section 501-01 .
2. Remove the suction accumulator. For additional information, refer to Suction Accumulator in this section.
3. Remove the parts in the order indicated in the following illustration and table.
4. To install, reverse the removal procedure.
5. Fill the engine cooling system. For additional information, refer to Section 303-03 .


Item 3: Heater Hoses Removal Note

Clamp off and disconnect the heater core quick disconnect fittings.
Item 7: Heater Core and Evaporator Core Housing Removal Note

1. Remove the bolt and position the junction box aside

2. NOTE: For vehicles equipped with a rear footwell duct, the heater core and evaporator core housing must be carefully detached from the dash panel and then tilted toward the rear of the vehicle to detach it from the rear footwell duct connection.

Loosen the nut and remove the heater core and evaporator core housing.
A.. Detach the clip.
B. Completely loosen the nut.
C. Remove the heater core and evaporator core housing.

Item 8: Heater Core Removal Note

1. Remove the dash panel seal.
2. Remove the screws and position the temperature blend door actuator aside.
3. Remove the screws and the heater core cover.
4. Remove the heater core.


Item 9: Evaporator Core Removal Note

1. Remove the screws and detach the wire harness from the evaporator core cover.
2. Remove the screws and the blower motor resistor (EMTC) or blower motor speed control (EATC).
3. Remove the bottom evaporator core cover screws.
4. Remove the evaporator core cover screws.
5. Disconnect the air inlet mode door actuator electrical connector.
6. Remove the remaining upper evaporator core covers screws and the evaporator core cover.
7. Remove the evaporator core.