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Compressor Oil: Operation

WARNING: This page is about a different car, the 2001 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Prior to opening the refrigerant system for repairs (except compressor seizure) the system must be stabilized for correct oil replenishment.
  2. Follow these procedures:
    1. Engine speed set to 1,500 RPM.
    2. A/C "ON".
    3. Air source to recirculate
    4. Blower 4th or high speed position
      • Make sure the air entering the evaporator is above 26.7°C (80°F).
      • The discharge (high) side pressure must be above 588 kPa (6 kg/cm2 , 85 psi).
    5. Operate the A/C for 10 minutes.
  3. Slowly, discharge the system starting with the high-pressure side until the pressure drops below 345 kPa (3.52 kg/cm2 , 50 psi), then open the low- pressure side.
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