Compressor HVAC: Service and Repair
AIR CONDITIONING (A/C) COMPRESSORREMOVAL
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 (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.
- If installing a new air conditioning compressor due to an internal failure of the old unit, you must carry out the following procedures to remove contamination from the air conditioning system.
- If A/C flushing equipment is available, carry out flushing of the air conditioning system prior to installing a new air conditioning compressor.
- If A/C flushing equipment is not available, carry out filtering of the air conditioning system after a new air conditioning compressor has been installed.
- Install a new evaporator core orifice as directed by the A/C flushing or filtering procedure.
- Install a new suction accumulator as directed by the A/C flushing or filtering procedure.
NOTE: Installation of a new suction accumulator 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.
All vehicles
1. Remove the drive belt from the A/C compressor pulley.
Vehicles with 6.0L Diesel
2. Remove the transmission cooler filter assembly.
4x2 vehicles
3. Remove the RH fender splash shield.
4. Loosen the bolt and detach the compressor manifold and tube from the A/C compressor.
- Discard the O-ring seals.
All vehicles
5. Raise the vehicle.
4x4 vehicles
6. Remove the RH front wheel and tire.
7. Loosen the bolt and detach the A/C manifold and tube assembly from the A/C compressor.
- Discard the O-ring seals.
Vehicles with 5.4L and 6.8L
8. Disconnect the wire harness connector from the crankshaft position sensor.
All vehicles
9. Disconnect the wire harness connector from the A/C clutch field coil.
10. NOTE: The lower rear bolt must be removed with the A/C compressor.
Remove the bolts and the A/C compressor.
INSTALLATION
1. To install, reverse the removal procedure.
- Install a new O-ring seals lubricated in clean mineral oil.
- If filtering of the refrigerant system is not to be carried out, lubricate the refrigerant system with the correct amount of clean PAG oil.
2. If filtering of the refrigerant system is not to be carried out, evacuate and recharge the system.