Accumulator HVAC: Service and Repair

REMOVAL





1. Disconnect the battery ground cable.





2. Disconnect the suction accumulator/drier spring lock coupling.

CAUTION: Plug all ports to prevent contamination from dirt or moisture.





3. Disconnect the A/C manifold and tube spring lock coupling.

CAUTION: Plug all ports to prevent contamination from dirt or moisture.





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





5. Loosen the A/C accumulator bracket bolt and remove the suction accumulator/drier.
6. Drain the oil from the removed suction accumulator/drier into a suitable measuring container. It may be necessary to drill one or two 12.7 mm (1/2 inch) holes in the bottom of the old suction accumulator/drier to make sure that all the oil has drained out.

INSTALLATION
1. Add refrigerant oil.
^ Use Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.

NOTE: Add the same amount of clean, new refrigerant oil that was removed, plus 59 ml (two fluid ounces) to the new suction accumulator/drier. Use only the specified oil.

2. Transfer the A/C cycling pressure switch to the new suction accumulator/drier.
3. Install new O-rings.

NOTE: Lubricate new O-ring seals liberally with clean Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.





4. Install the suction accumulator/drier and tighten the bracket bolt.





5. Connect the A/C cycling switch electrical connector.





6. Connect the A/C manifold and tube spring lock coupling.





7. Connect the suction accumulator/drier spring lock coupling.
8. Leak test the A/C system.





9. Connect the battery ground cable.