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A/C Compressor Replacement

NOTE: Do not install the A/C compressor into a system unless you are completely sure that the system is free of contamination. Installing the A/C compressor into a contaminated system can result in premature A/C compressor failure.
  1. If the A/C compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off.
  2. Recover the refrigerant with a recovery/recycling/charging station (see REFRIGERANT RECOVERY  ).
  3. Remove the drive belt (see DRIVE BELT REMOVAL/INSTALLATION ).
  4. Remove the A/C condenser fan shroud (see FAN, FAN MOTOR, AND SHROUD REMOVAL AND INSTALLATION ).
  5. Disconnect the A/C compressor clutch connector (A). Remove the bolts and the nut, then disconnect the suction hose (B) and the discharge hose (C) from the A/C compressor. Remove the O-rings (D). Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    Fig 1: A/C Compressor Clutch Connector, Suction Hose, Discharge Hose And O-Rings With Torque Specifications
    G07770715Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Raise the vehicle on a lift, then remove the front splash shield (see FRONT SPLASH SHIELD REPLACEMENT ).
  7. Remove the mounting bolts and the A/C compressor (A). Be careful not to damage the radiator fins when removing the A/C compressor.
    Fig 2: A/C Compressor And Mounting Bolts With Torque Specifications
    G07770716Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Install the A/C compressor in the reverse order of removal, and note these items:
    • Before installing a new A/C compressor, adjust the A/C compressor oil level (see A/C COMPRESSOR RELIEF VALVE REPLACEMENT  ).
    • Inspect the A/C lines for any signs of contamination.
    • If you are installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it. A new A/C compressor comes with a full charge of oil (see A/C COMPRESSOR RELIEF VALVE REPLACEMENT  ).
    • Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
    • Use only PAG refrigerant oil (SP-10) for HFC-134a A/C systems.
    • To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    • Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    • Do not spill the refrigerant oil on the vehicle; it may damage the paint. If the refrigerant oil contacts the paint, wash it off immediately.
    • Be careful not to damage the radiator fins when installing the A/C compressor and the A/C condenser fan shroud.
    • Charge the system (see SYSTEM CHARGING  ).
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