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How can you tell if the compressor is out?

(1999 Ford Escort)
in Longview, TX on June 24, 2010
I am having air conditioner problems and would like to try and figure out if the compressor is out or if it might be something else. My air worked fine on the way to work and when I got off it was not blowing cold. The next day I took it and had freon added. He did say he had a hard time getting it to take freon. It worked fine when I left there and went to work. The next day it was not cold again. I assumed I had a leak. A friend checked the freon and said it showed to be full and said that there is some kind of overfill and underfill switch on the compressor that might have shut it off. Has anyone heard of this? My other question is if the compressor could be out. I didn't think so because of it not working the first day and then it did work after adding freon twice. Help Please.
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Popular Answer
on June 24, 2010
Yes, there is is both a low pressure and high pressure cut off switch. What I recommend is to have your system really inspected with a good set of gauges by a good tech.
If you are just adding freon, and it is already full, you are not going to get any where. You may have a bad cut off switch or a several other things.
If I was working on your car, I would hook-up the gauge set and run the system and watch what happens when it cuts off, then I would test components to see what failed. Your car has a pretty simple AC system so it should not be that hard.

here are some shops in your area:
http://repairpal.com/ford-repair-in-longview-texas
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