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A/C System Inspection

Before troubleshooting any problem with the air conditioning system, do the following:
  1. With the ignition switch in LOCK (0), inspect the A/C components, pressure lines and hoses for stains that may indicate a refrigerant or a compressor oil leak.

  1. Check the A/C condenser (A) for material clogging the fins or for damage to the fins:
    • Carefully clean any material from the A/C condenser fins with water and detergent.
    • Be sure to dry the A/C condenser completely.
  1. Make sure no material is blocking the airflow to the A/C condenser.
  1. Start the engine, turn the air conditioning system on, and allow it to normalize for a few minutes.
  1. Check that the A/C operates at each position of the blower fan switch (except OFF).

  1. Check that the A/C compressor clutch (A) is engaged. The pressure plate should be rotating at the same speed as the pulley.
  1. Check that the A/C condenser fan (B) and radiator fan (C) operate when the A/C compressor clutch is engaged.
  1. Check that the engine idle speed is correct when the A/C is switched on and off, and when the A/C compressor clutch is engaged and disengaged.