Ranger 4WD L4-153 2.5L SOHC VIN C SFI (2001)
High Pressure Safety Valve HVAC: Description and Operation
An A/C pressure relief valve is incorporated in the compressor manifold and tube assembly to:
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relieve unusually high refrigerant system discharge pressure buildups.
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prevent damage to the A/C compressor and other system components.
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avoid total refrigerant loss by closing after the excessive pressure has been relieved.
