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Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation And Air Conditioning >> Repair Instructions >> Compressor Oil Balancing >> Balancing Procedure

Balancing Procedure

    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. Fig 1: Replacing Measured Compressor Oil
    GM823337Courtesy of GENERAL MOTORS CORP.
  3. 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.