A/C Compressor Relief Valve Replacement

2009 Honda S2000 BaseSECTION 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
    G06232297Courtesy 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, and install and tighten the relief valve.
  6. Charge the system (see SYSTEM CHARGING ).
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.