Compressor Pressure Relief Valve Replacement for Chevrolet Impala 2009

Special Tools

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.




Note: 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.

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.

Caution: Refer to Fastener Caution in the Preface section.




3. Install the high pressure relief valve and tighten 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 Halogen Leak Detector .