Evaporator Core: Service and Repair

REMOVAL

NOTE:
- To prevent refrigerant system contamination, if you are replacing the A/C evaporator core you must also replace 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. Recover the refrigerant. Please refer to Heating ad 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 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 Remove the A/C evaporator housing.
12. Disconnect the suction accumulator/drier from the A/C evaporator core.







13. Remove the screws attaching the housing cover.







14. Remove the A/C evaporator core and the suction accumulator/drier.
- Remove the suction accumulator/drier mounting clamp and clamp screws before replacing the A/C evaporator core.
1 Separate the evaporator case halves.
2 Remove the A/C evaporator core and the suction accumulator/drier.

INSTALLATION
1. Install two A/C evaporator core seals at the end plate of the A/C evaporator core. Inspect the two strip seals in the A/C evaporator housing, replace the seals if they are damaged.
































2. Follow the removal procedure in reverse order.
- Service the replacement A/C evaporator core with the correct amount of Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B. Please refer to Heating ad Air Conditioning/Service and Repair/ Service and Repair