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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Heating, Ventilation & Air Conditioning) >> Repair Instructions >> Compressor Oil Balancing >> Draining Procedure

Draining Procedure

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: Drain and measure as much of the refrigerant oil as possible from the removed compressor.
  1. Remove the oil drain plug from the compressor crankcase and drain the crankcase into a clean, graduated container.
    2. Fig 1: Draining Oil From Suction & Discharge Ports Of Removed Compressor
    GM1342638Courtesy of GENERAL MOTORS CORP.
  2. Drain the oil from both the suction and discharge ports of the removed compressor into the same container.

    Rotate the compressor shaft to assist in draining the compressor.

  3. Measure and record the amount of oil drained from the removed compressor.

    This measurement will be used during installation of the replacement compressor.

  4. Properly discard the used refrigerant oil.
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