A/C Compressor Relief Valve Replacement

1. Recover the refrigerant with a recovery/recycling/charging station.

1. Remove the relief valve (A), and the O-ring (B). Plug the opening to keep foreign matter from entering the system and the A/C compressor oil from running out.

1. Clean the mating surfaces.

1. Install a new O-ring on the relief valve, and apply a thin coat of refrigerant oil to the O-ring.

1. Remove the plug, and install and tighten the relief valve.

1. Charge the system.