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Replaced compressor 1 1/2 yrs. ago, with relay switch. In Aug. A/C began with problem of not blowing cold air & A/C green light on interior switch would flash. This began occurring occasionally, then more frequent, finally A/C stopped blowing cold all the time. Mechanic replaced Pressure Switch & it worked fine for 30 days. Then same problem began all over again. What is wrong with it? Did the car need a Pressure Switch? Cost to repair?
Replaced the compressor 1 1/2 yrs. ago, along with the relay switch. Problem occurred in Aug. where it would do this intermittently, then it occurred more frequently, then A/C stopped. Mechanic spent a lot of time searching for cause. He replace the Pressure Switch and it worked fine for 30 days. Then the same problem began all over again. Did I need a pressure switch? What is causing this? What's the cost to repair?