Lake Charles Auto Repair

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Category Archives: Vehicle air conditioning

Why is my AC not blowing cold?

Why is my AC not blowing cold?

The air conditioning system in a vehicle is subjected to much more abuse than your typical household AC system.  Between the constant hot and cold cycles of the engine, the harsh vibrations over pot hole infested roads, and the constant dirt and debris there are a number of things that can go wrong.  These are just a few of the most common causes for AC failure.   Number 1 on the list is loss of freon.  Rubber hoses, seals, and valves are all common areas where freon will escape.  Occasionally the condenser on the front of the vehicle will pick up a rock. The seams on the evaporator inside the dash will bust from constant expansion and contraction.  There can be dozens of different o-rings and seals that may fail.   The biggest problem we see with freon leaks typically happen when freon is added to the system without a charge of oil.  When freon leaks out of the system, so will the oil that lubricates the AC compressor.  Once the oil in ... read more

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