The way to Check out Your Car’s Air Conditioning System

Note: Usually be incredibly mindful any time you happen to be beneath the hood as the engine is operating. Keep away from all rotating elements with your hands, clothing, and hair, and often put on eye safety close to a operating engine.

1. With all the engine operating, does the compressor clutch engage if the A/C is switched on? If it does not, this normally indicates a reduced (or empty) refrigerant ailment, or an electrical challenge. Also, listen for speedy clicking or cycling noises with the compressor once the A/C is switched on. If that is happening, it could also indicate low refrigerant or various other problems. Have it checked by your services technician. (Note: Some A/C systems reduce compressor clutch engagement in very low temperatures, commonly at or beneath 40 F.)

2. Would be the A/C system blowing cold air? Luke warm air or air that may be barely cooled at all could indicate a very low refrigerant charge from the A/C system. Strain gauges may be used to check out the refrigerant charge. If reduced, add refrigerant to bring the system as much as complete charge.

3. With the engine operating and the A/C switched off, listen for knocking or rumbling sounds within the vicinity from the compressor. These could indicate a failing compressor clutch, and/or loose mounting hardware.

4. Are A/C component mounting bolts in area and tightly secured? Nothing loose or rattling all around?

5. Are caps set up within the A/C system service ports? This keeps out dirt, and also supplies a seal for refrigerant.

6. Test all belts for cracks, put on, and glazing. Have them replaced in the initial sign of any of those problems. Also, test for belts that vibrate as the engine is running and the A/C is on. This may indicate a belt that has to be tightened, or even a defective automatic belt tensioner.

7. Take a look at all A/C and cooling system hoses for cuts, abrasion, weak spots, and indicators of leakage. Leakage from A/C system hoses is commonly indicated by an accumulation of dirt and oil, notably at connections and fittings.

8. Ensure the condenser (before the radiator) is free of charge of any obstructions, such as leaves or insects. This could lessen airflow, leading to decreased A/C effectiveness. You could rinse the condenser clean by using a garden hose.