GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2008 🢒 Astra 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Air Conditioning Compressor Oil Balancing

Draining Procedure

    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. Object Number: 821777 Size: SH
  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.

Balancing Procedure

    Object Number: 823337 Size: SH

    Important: The refrigerant oil in the A/C system must be balanced during compressor replacement.

  1. Drain the new compressor.
  2. Add the same quantity of new oil to the new compressor that was drained from the removed compressor.