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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 866 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Oil Balancing >> Balancing Procedure

Balancing Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. The replacement compressor is shipped with 80 ml (2.7 oz) of refrigerant oil.
  2. Compare the amount of refrigerant oil recorded during compressor removal to the amount of refrigerant oil shipped in the replacement compressor.

    If the amount of refrigerant oil drained and recorded from the removed compressor is:

    • Less than 80 ml (2.7 oz)

      Leave the 80 ml (2.7 oz) in the replacement compressor.

    • More than 80 ml (2.7 oz)

      Add to the compressor the difference between the 80 ml (2.7 oz) and the amount drained.

      Fig 1: Compressor Balancing Procedure With Oil
      G01498799Courtesy of GENERAL MOTORS CORP.