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 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. Recover the refrigerant.
2. Disconnect the battery.
3. Remove the battery.







4. Remove the battery tray.
1 Remove the bolts.
2 Remove the battery tray.







5. Position the washer reservoir filler tube aside.
1 Remove the screws.
2 Position the filler tube aside.







6. CAUTION: Use a wrench on each side of the fitting to prevent twisting of the refrigerant line.

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

Vehicles without auxiliary A/C







7. CAUTION: Use a wrench on each side of the fitting to prevent twisting of the refrigerant line.

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

Vehicles with auxiliary A/C







8. Remove the screw.







9. Disconnect the spring lock coupling.
- Discard the O-ring seals.

All vehicles







10. Disconnect the A/C cycling switch electrical connector.







11. Remove the suction accumulator.
1 Remove the bolts.
2 Remove 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.