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A/C Compressor Relief Valve Replacement

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 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 moisture and foreign material from entering the system and the A/C compressor oil from running out.
    Fig 1: Locating Relief Valve And O-Ring
    G08058002Courtesy 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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