Envoy 2WD V6-4.3L VIN W (1998)
High Pressure Safety Valve HVAC: Service and Repair
Compressor Pressure Relief Valve
Tools Required
J 41790 Compressor Holding Fixture
Removal Procedure
1. Remove the compressor from the vehicle.
2. Clamp the compressor holding fixture, J 41790 in a vise and attach the compressor to the J 41790.
3. Remove the pressure relief valve from the rear head of the compressor.
Installation Procedure
1. Clean the pressure relief valve seat area of the rear head.
2. Lubricate the O-ring of the new pressure relief valve with clean 525 viscosity refrigerant oil.
