Guidelines

Replacement of the suction accumulator/drier is necessary anytime a major component of the refrigerant system is replaced. Failure to replace the suction accumulator/drier could subject the system to excessive moisture accumulation. A major component includes:
- A/C condenser core
- A/C compressor
- A/C evaporator core
- refrigerant hose(s) or line(s)

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.

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.







1. When replacing the suction accumulator/drier, the procedure given here must be followed to make sure 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 two 13 mm (0.5-inch) holes in the bottom of the old suction accumulator/drier to make sure that all the oil has drained out.

NOTE: The compressor oil may have a dark color while maintaining a normal oil viscosity. This is normal for this FS-10 A/C compressor because carbon from the A/C compressor piston rings will discolor the oil.

2. Add the same amount of refrigerant oil plus 60ml (2 ounces) to the new suction accumulator/drier. Use only the oil specified for the specific vehicle being serviced (Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B).