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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1296 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Conditioning Compressor Oil Balancing (HP2) >> Balancing Procedure (Flushing Required Only)

Balancing Procedure (Flushing Required Only)

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Flush the A/C system. Flushing will remove all the oil from the A/C system. Refer to Flushing (Non HP2)  or Flushing (HP2) .
  2. Remove the A/C compressor from the vehicle. Refer to Air Conditioning Compressor Replacement (LLY/LMM) , Air Conditioning Compressor Replacement (LU3) , Air Conditioning Compressor Replacement (LY2, LY5, LH6, L76, L92 and LMG)  or Air Conditioning Compressor Replacement (HP2) .
    3. Fig 1: View Of A/C Hose Routing
    GM2093924Courtesy of GENERAL MOTORS CORP.
  3. Drain the oil from both the suction and discharge ports of the removed compressor into a clean, graduated container.
    4. Fig 2: Illustrating Refrigeration Oil Replenishing
    GM2100327Courtesy of GENERAL MOTORS CORP.
    NOTE: The A/C system must be replenished with POE oil.
  4. Add the total system capacity of POE oil 150 ml (5.0 oz.) to the A/C system by filling the A/C compressor or using J 45037:  injector along with GE 48997:  adapter.
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