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A/C Compressor Relief Valve Replacement

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant with a recovery/recycling/ charging station (see REFRIGERANT RECOVERY  ).
  2. Remove the front splash shield (see SPLASH SHIELD REPLACEMENT ).
  3. Remove the front undercover (see FRONT UNDERCOVER REPLACEMENT ).
  4. 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 Specification
    G05487743Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Clean the mating surfaces.
  6. Replace the O-ring with a new one at the relief valve, and apply a thin coat of refrigerant oil before installing it.
  7. Remove the plug, and install and tighten the relief valve.
  8. Charge the system (see SYSTEM CHARGING  ).
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