Compressor HVAC: Service and Repair

AIR CONDITIONING (A/C) COMPRESSOR

Removal and Installation

CAUTION:
- If installing a new air conditioning compressor due to an internal failure of the old unit, you must carry out the 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.

- 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 the R-134a refrigerant system as an A/C compressor lubricant. PAG Refrigerant Compressor Oil 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.

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.

1. Position the vehicle on a hoist with the gear selector in NEUTRAL.
2. If flushing of the air conditioning system has not been carried out, recover the refrigerant.
3. Remove the cooling fan motor and shroud.







4. Remove the bolts and the drive belt cover.
5. Remove the drive belt from the A/C compressor pulley.







6. Disconnect the field coil electrical connector.







7. Remove the bolts and position aside the power steering line.







8. Remove the three compressor bolts and lower the A/C compressor.







9. Loosen the compressor manifold bolt and remove the A/C compressor.
- Discard the O-ring seals.

10. To install, reverse the removal procedure.
- If a new A/C compressor is to be installed, the clutch and clutch field coil must be transferred from the old unit to the new unit.
- Install 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.

11. If filtering of the refrigerant system is not to be carried out, evacuate, leak test and charge the refrigerant system.