Evaporator Core: Service and Repair

REMOVAL

NOTE: Installation of a new [1][2]suction accumulator/drier is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator/drier. If an A/C evaporator core leak is suspected, the A/C evaporator core must be leak tested before it is removed from the vehicle.

1. Disconnect the battery ground cable.
2. Perform the Refrigerant Discharging and Recovery Procedure, please refer to Heating and Air Conditioning/Service and Repair/ Service and Repair





3. Disconnect the A/C cycling switch.






4. Disconnect the electrical connectors.
1 Disconnect the A/C blower motor electrical connector.
2 Disconnect the A/C blower motor resistor electrical connector.






5. Disconnect the heater core.
1 Disconnect the heater water hoses.
2 Disconnect the heater water control valve vacuum hose.






6. Position the speed control servo aside.
1 Remove the (A) bolt and disconnect the (B) servo electrical connector.
2 Position the speed control servo aside.






7. Remove the nuts and the screws from the windshield washer reservoir/coolant recovery reservoir. Set the reservoir aside.






8. Disconnect the A/C manifold and tube from the [1][2]suction accumulator/drier.






9. Disconnect the condenser to evaporator tube.






10. Disconnect the (B) A/C system vacuum harness and the (A) A/C evaporator housing mounting nut inside the vehicle.






11. Remove the A/C evaporator housing, please refer to Heating and Air Conditioning/Evaporator Case/Service and Repair/ Service and Repair
1 Remove the three underhood and one underdash nuts.
2 Lift the A/C evaporator housing out of the vehicle.

12. Disconnect the [1][2]suction accumulator/drier from the A/C evaporator core.






13. Remove the screws attaching the housing cover.






14. Remove the A/C evaporator core.
1 Separate the evaporator case halves.
2 Lift the A/C evaporator core out.

INSTALLATION










1. To install, reverse the removal procedure.
- Service the new A/C evaporator core with the correct amount of PAG compressor oil, YN-12-C, F7AZ-19589-DA or equivalent meeting Ford specification WSH-M1C231-B.