Compressor HVAC: Service and Repair

REMOVAL

CAUTION: When replacing an A/C compressor which has failed internally, perform the following procedures to prevent contamination of the refrigerant system.
- If A/C flusher is available, perform the Flushing procedure. A/C System Flushing
- If A/C flusher is not available, perform the Refrigerant System Filtering after A/C Compressor Replacement procedure. Refrigerant System Filtering After A/C Compressor Replacement
- Replace the suction accumulator/drier.
- Replace the A/C evaporator core orifice.

1. Remove the drive belt from the A/C clutch pulley.







2. Loosen the bolt and remove the A/C manifold and tube assembly from the A/C compressor.
3. Raise the vehicle.







4. Disconnect the wire harness connector from the crankshaft position sensor.







5. Disconnect the wire harness connector from the A/C clutch field coil.







6. The lower rear bolt must be removed with the A/C compressor.
1 Remove the front bolts.
2 Loosen the bolt and remove the A/C compressor and bolt.

INSTALLATION
1. Service the replacement A/C compressor with the proper amount of Motorcraft YN-12c refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.







2. Install the lower rear bolt into the A/C compressor.







3. Install the A/C compressor.







4. Connect the A/C compressor field coil wire harness connector.







5. Connect the crankshaft position sensor wire harness connector.
6. Lower the vehicle.







7. Install the A/C manifold and tube assembly.

NOTE:
- Lubricate the O-ring seals of the A/C manifold and tube assembly with Motorcraft YN-12c refrigerant oil F2AZ-19577-AB or equivalent meeting Ford specification WSH-M1C231-B.
- Apply Pipe Sealant with Teflon (R) D8AZ-19554-A or equivalent meeting Ford specifications WSK-M2G350-A2 and ESR-M18P7-A to the threads of the A/C manifold nut.

8. Install the drive belt on the A/C compressor drive pulley.
9. Evacuate and recharge the system.