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Compressor Oil Drain Procedure

CAUTION: Be certain to adjust the refrigerant system oil level when replacing an A/C compressor. Failure to properly drain and measure the refrigerant oil from the A/C compressor can prevent the A/C system from operating as designed and cause serious compressor damage.

The A/C compressor is filled with refrigerant oil from the factory. Use the following procedure to drain and measure refrigerant oil from the A/C compressor.

  1. Drain all of the refrigerant oil from the old A/C compressor into a clean measured container.
  2. Drain all of the refrigerant oil from the new A/C compressor into a clean measured container.
  3. Refill the new A/C compressor with the same amount of refrigerant oil that was drained out of the old compressor. Use only clean refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  4. Install the new A/C compressor onto the engine. See Heating and Air Conditioning/Plumbing/COMPRESSOR, A/C - Installation .
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