LaCrosse V6-3.6L (2007)
High Pressure Safety Valve HVAC: Service and Repair
Compressor Pressure Relief Valve Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Raise and support the vehicle. Refer to Vehicle Lifting.
Important: Cap or tape the open A/C components immediately to prevent system contamination.
3. Remove the high pressure relief valve.
4. Cap or tape the A/C compressor.
Installation Procedure
1. Remove the cap or tape from the A/C compressor.
2. Lubricate the O-ring on the high pressure relief valve. Refer to O-Ring Replacement.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the high pressure relief valve.
Tighten the valve to 8 N.m (70 lb in).
4. Lower the vehicle.
5. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
6. Leak test the fittings of the component using J 39400-A.
