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A/C Compressor Relief Valve Replacement

NOTE: If the A/C compressor relief valve released refrigerant to the atmosphere, determine and correct the cause of the excessive system pressure, then replace the relief valve.
  1. Recover the refrigerant with a recovery/recycling/charging station (see REFRIGERANT RECOVERY  ).
  2. 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
    G06680560Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Clean the mating surfaces.
  4. Replace the O-ring with a new one at the relief valve, and apply a thin coat of refrigerant oil before installing it.
  5. Remove the plug you installed in step  2, then install and tighten the relief valve.
  6. Charge the system (see SYSTEM CHARGING  ).
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