Accumulator HVAC: Service and Repair

SUCTION ACCUMULATOR

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

1. Recover the refrigerant.







2. Remove the windshield washer reservoir filler neck bolts.







3. Detach and position the junction box aside.







4. Disconnect the compressor manifold and tube suction fitting.
1 Remove the screw.
2 Disconnect the fitting.
- Discard the O-ring seal.







5. Disconnect the evaporator outlet fitting.
- Discard the O-ring seal.







6. Detach the wire harness.
1 Disconnect the cycling switch electrical connector.
2 Remove the nut and stud and detach the wire harness.







7. Remove the bolts and the suction accumulator.

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.