A/C System Inspection

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.






2. Check the A/C condenser 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 (A) completely.






3. Inspect the drive belt.
4. Make sure no material is blocking the airflow to the A/C condenser.
5. Check the dust and pollen filter, and replace it if it is clogged.
6. Start the engine, turn the air conditioning system on, and allow it to normalize for a few minutes.
7. Check that the A/C operates at each position of the blower fan switch (except OFF).
8. Check that the A/C compressor clutch (A) is engaged. The pressure plate should be rotating at the same speed as the pulley.






9. Check that the cooling fans (B) operate when the A/C compressor clutch is engaged.
10. 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.