A/C Compressor Relief Valve Replacement

WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If the A/C relief valve released refrigerant to the atmosphere, determine and correct the cause of the excessive system pressure, then replace the relief valve.

Recover the refrigerant with a recovery/recycling/ charging station (see REFRIGERANT RECOVERY ).
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.

Fig 1: Relief Valve And O-Ring With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Clean the mating surfaces.
Replace the O-ring with a new one at the relief valve, and apply a thin coat of refrigerant oil before installing it.
Remove the plug, and install and tighten the relief valve.
Charge the system (see SYSTEM CHARGING ).