I have a 2011 Honda Civic and SOMETIMES it does not blow out hot air OR cold air. Like I said, SOMETIMES. Most times, both the heat and the air works just fine. My car is also making an awful noise noise now... whether the air is on or off. It doesn't matter, the noise is constant. I just took my car to the mechanic and he said that my compressor is going out, and that is the cause of the noise that I hear. I find this difficult to believe because like I said earlier, even when I'm not running the air or heat, the sound is there. How can the compressor make noise when it's turned off? the other concern I have is that he told me that when the compressor finally goes completely out, that my motor will lock up and I will not be able to drive at all. Is this true?
As far as locking up, it may or may not, most of the time it's no. A new compressor with labor could be rather expensive. As far as hot air there are blend doors located under the dash that may not be opening up, or you may have some air in the cooling system and may need to get burped, but I dont think so...
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