Balancing Procedure (Flushing Required Only)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Flush the A/C system. Flushing will remove all the oil from the A/C system. Refer to Flushing (Non HP2) or Flushing (HP2) .
Remove the A/C compressor from the vehicle. Refer to Air Conditioning Compressor Replacement (LLY/LMM) or Air Conditioning Compressor Replacement (LU3) or Air Conditioning Compressor Replacement (LY2, LY5, LH6, L76, L92 and LMG) or Air Conditioning Compressor Replacement (HP2) .

Fig 1: Draining Refrigerant Oil From Compressor

Courtesy of GENERAL MOTORS CORP.

Drain the oil from both the suction and discharge ports of the removed compressor into a clean, graduated container.

Fig 2: Replenishing Refrigeration Oil

Courtesy of GENERAL MOTORS CORP.

NOTE: The A/C system must be replenished with POE oil.

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.