Mustang Cobra V8-281 4.6L DOHC VIN V MFI (1997)
Refrigerant Oil: Service and Repair
Compressor Oil
Whenever the A/C compressor is replaced and evidence of debris is present within the A/C system, the following must also be accomplished:
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Replace the suction accumulator/drier.
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Replace the A/C evaporator core orifice.
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Clean the A/C system by flushing or filtering.
NOTE: Replacement A/C compressors are shipped without compressor oil.
When reinstalling the existing A/C compressor or installing a new A/C compressor, the A/C compressor must be serviced with the correct amount of
Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B as follows:
1. Obtain a clean container that can also be used as a measuring device.
2. Place the A/C clutch on the A/C compressor shaft so the shaft can be rotated.
3. Rotate the shaft by hand six to eight revolutions, collecting the oil in a clean measuring device.
4. If the amount of oil drained from the old A/C compressor is between 85-142 ml (3-5 ounces), pour the same amount of clean Motorcraft YN-12b
refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B plus 30 ml (1 ounce) into the new A/C compressor.
5. If the amount of oil that was removed from the old A/C compressor is greater than 142 ml (5 ounces), pour the same amount drained of clean
Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B into the new A/C compressor.
6. If the amount of refrigerant oil that was removed from the old A/C compressor is less than 85 ml (3 ounces), pour 85 ml (3 ounces) of clean
Motorcraft YN-12b refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B into the new A/C compressor.
