Removal and Installation
CAUTION: Replacement of the suction accumulator/drier is necessary any time a major component of the refrigerant system is replaced. Failure to replace the suction accumulator/drier will expose the refrigerant system to excessive moisture accumulation. A major component includes A/C condenser core, A/C compressor, A/C evaporator core, or a refrigerant hose/line. An A/C evaporator core orifice or O-ring seal is not considered a major component but the A/C evaporator core orifice should be replaced whenever the A/C compressor is replaced for lack of performance. In addition to the preceding condition, the suction accumulator/drier should also be replaced if one of the following conditions exist:^ The suction accumulator/drier is perforated.
^ The refrigerant system has been opened to the atmosphere for a period of time longer than required to make a minor repair.
^ There is evidence of moisture in the system such as internal corrosion of metal refrigerant lines or the refrigerant oil is thick and dark.
NOTE: The compressor oil from vehicles equipped with an FS-10 A/C compressor may have a dark color while maintaining a normal oil viscosity. This is normal for this A/C compressor because carbon from the A/C compressor piston rings will discolor the oil.
CAUTION: When replacing the suction accumulator/drier, the procedure given here must be followed to ensure that the total oil charge in the system is correct after the new suction accumulator/drier is installed.
^ Drain the oil from the removed suction-accumulator/drier into a suitable measuring container. Drill one or two 1/2 inch holes in the bottom of the old suction accumulator/drier to ensure that all the oil has drained out.
^ Add the same amount of clean new refrigerant oil plus 60 ml (2 ounces) to the new suction accumulator/drier. Use only Motorcraft oil YN-12b or an equivalent meeting Ford specification WSH-M1C231-B.
Suction Accumulator/Drier (Typical):
REMOVAL
1. Recover the refrigerant from the A/C system. Observe all safety precautions.
2. Disconnect the suction hose at the A/C compressor. Cap the suction hose and the A/C compressor to prevent the entrance of dirt and moisture.
3. Disconnect the suction accumulator/drier inlet tube from the A/C evaporator core outlet. Use Spring Lock Coupling Disconnect Tool (3/4 inch) T85L-19623-A to remove inlet tube.
4. Disconnect the wiring harness connector from the A/C cycling switch on top of the suction accumulator/drier.
5. Remove the screw holding the suction accumulator/drier in the suction accumulator/drier bracket and remove the suction accumulator/drier.
INSTALLATION
1. Position the suction accumulator/drier to the vehicle and route the suction hose to the A/C compressor.
2. Using new O-ring seals lubricated with clean Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B, connect the suction accumulator/drier inlet tube to the A/C evaporator core outlet.
CAUTION: Make sure the correct O-ring seals are installed on the A/C fittings.
3. Install the screw in the suction accumulator/drier bracket.
4. Using new O-ring seals lubricated with clean Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B, connect the suction hose to the A/C compressor. Install the suction line spring lock coupling.
5. Leak test, evacuate, and charge the system. Observe all safety precautions.
6. Check the system for proper operation.