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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation And Air Conditioning >> Repair Instructions >> Refrigerant Recovery and Recharging >> A/C System Oil Charge Replenishing

A/C System Oil Charge Replenishing

Any oil removed from the A/C system during the recovery process must be replenished at this time.

  1. Use the correct graduated bottle of PAG oil for the R-134a system.
    • Keep the oil bottles tightly capped at all times to protect the oil from moisture and contamination.
    • Never open the oil injection valve while there is positive pressure in the A/C system. This will result in oil blow-back through the bottle vent. You must have A/C system vacuum for this operation.
    • Never let the oil level drop below the pick-up tube while charging or replenishing the system. This will allow air into the A/C system.
  2. Refer to the manufacturer's instructions for the charging station in use. Add the proper amount of PAG oil to the system.
  3. Close the valve when the required oil charge has been pulled into the system.
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