E 150 V8-4.6L SOHC VIN W (2004)
Expansion Valve: Service Precautions
CAUTION:
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Refrigerant Compressor Oil (Mineral Oil) F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant system
O-rings 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.
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Use a wrench on each side of the fitting to prevent damage to the A/C fitting.
