• Excel Autocare

Know how your vehicle's Air Conditioning system works.

Having A/C in your vehicle is something that we as drivers, sometimes take for granted. But when that summer heat arrives, and all you get from your A/C is warm air; chances are you need a component repaired. What many people don’t realize is your vehicle's air conditioning system does not create cold air; it actually takes the heat and moisture out of the air that is already in your car, leaving the cooler air behind.

There are many components to your vehicles A/C system, so let's take a look at the main parts:

Compressor – The vehicles compressor is powered by the drive belt connected to the crankshaft of the engine. When the system is turned on, the compressor than pumps refrigerant vapor under high pressure to the condenser. The compressor gets it name due to it being responsible for compressing the refrigerant gas, commonly known as Freon. When the gas is compressed it becomes very hot and is then sent through a condenser

Condenser – The condenser is responsible for changing the high-pressure refrigerant vapor to a liquid. It is mounted in front of the radiator and looks like is a series of coils that outside air passes over to remove the heat from the compressed gas. This will cause the gas to cool and condense into a cold liquid.

Accumulator or Receiver-Drier – Your vehicle will either be equipped with either an accumulator or a receiver-drier. A receiver-drier will be located after the condenser and is needed for warranty reasons for the condenser. The accumulator is located after the evaporator. Whichever part your vehicle has, its purpose is to act as a filter for the refrigerant by removing any moisture or debris that might be left in the system.

Evaporator - The vehicles evaporator works as the low-pressure liquid refrigerant mist flows through the evaporator, a blower motor pushes air across the cold tubes of the evaporator to deliver cooled air into the passenger compartment of the automobile.

There are many different reasons that these parts can fail. They can start leaking over time due to corrosion, or all of a sudden due to an accident. When an obvious leak is not the cause of the air condition system not working, a system recharge with dye is needed. This allows the technicians to locate the leak after a period of time.

Still unsure if you’re air conditioning system is working correctly, or why it is not working at all – call us today!

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