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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1380 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Oil Balancing >> Draining

Compressor Oil Balancing: Draining

WARNING: This page is about a different car, the 2004 Pontiac Vibe. 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 compressor crankcase oil drain plug and drain the crankcase into a clean, graduated container.
    2. Fig 1: Draining A/C Refrigerant Oil From Compressor
    GM821777Courtesy 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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