Compressor Fitting HVAC: Service and Repair

COMPRESSOR MANIFOLD AND TUBE ASSEMBLY

REMOVAL

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 AC 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 system contamination from a failed A/C compressor or damage to the suction accumulator.

1. Recover the refrigerant.
2. With the vehicle in NEUTRAL, position it on a hoist.







3. NOTE: Access the compressor manifold and tube assembly bolt from the RH front fender well, between the frame and body.

Loosen the bolt and detach the compressor manifold and tube assembly from the A/C compressor.
- Discard the O-ring seals.

4. Remove the air cleaner assembly.







5. Disconnect the pressure cutoff switch electrical connector.







6. CAUTION: Use a wrench on each side of the fitting to prevent damage to the A/C fitting.

Disconnect the compressor manifold and tube assembly from the suction accumulator.
- Discard the O-ring seal.







7. CAUTION: Use a wrench on each side of the fitting to prevent damage to the A/C fitting.

Disconnect the compressor manifold and tube assembly from the condenser and remove the compressor manifold and tube assembly.
- Discard the O-ring seal.

INSTALLATION
1. To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean mineral oil.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.

2. Evacuate, leak test, and charge the refrigerant system.