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Home >> Buick >> 1992 >> Roadmaster V8-350 5.7L >> Repair and Diagnosis >> Heating and Air Conditioning >> Compressor HVAC >> Service and Repair >> Compressor Repair >> Major Compressor Repair Procedures >> Pressure Relief Valve
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Pressure Relief Valve









The Pressure Relief Valve, located in the compressor rear head casting (Fig 4). should only be replaced after recovering refrigerant. A new valve and O-ring coated with 525 viscosity refrigerant oil should be installed.