Astro Van AWD V6-4.3L VIN X (2003)
High Pressure Safety Valve HVAC: Service and Repair
Compressor Pressure Relief Valve Replacement
COMPRESSOR PRESSURE RELIEF VALVE REPLACEMENT
TOOL REQUIRED
J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Remove the engine cover.
2. Recover the refrigerant from the system.
3. Clean the valve seat area on the rear head.
4. Remove the pressure relief valve (1).
INSTALLATION PROCEDURE
1. Lubricate the O-ring of the new pressure relief valve (1) using new 525 viscosity refrigerant oil.
2. Install the pressure relief valve (1).
NOTE: Refer to Component Fastener Tightening Notice in Service Precautions.
Tighten
Tighten the pressure relief valve to 9 N.m (80 lb in).
3. Evacuate and recharge the refrigerant system.
4. Leak test the fitting(s) of the repaired or reinstalled component using the J 39400-A.