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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1615 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Conditioning Compressor Oil Balancing (Without HP5) >> Balancing Procedure

Balancing Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: The refrigerant oil in the A/C system must be balanced during compressor replacement.
  1. The replacement compressor is shipped with 74 ml (2.5 oz) of refrigerant oil.
    2. Fig 1: Draining A/C Refrigerant Oil From Compressor
    GM821777Courtesy of GENERAL MOTORS CORP.
  2. Before installing the compressor, the refrigerant oil may have to be partially drained:
    1. Refer to the amount of refrigerant oil recorded during the compressor removal.
    2. Subtract the amount recorded from the total system capacity. Refer to Refrigerant System Capacities (With HP5)  or Refrigerant System Capacities (Without HP5) . The difference between the total system capacity and the recorded amount is the calculated amount to be drained from the replacement compressor.
  3. Drain the calculated amount of refrigerant oil from the replacement compressor.
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