Question about 1999 Chevrolet Blazer
My 1998 Chevy Blazer is blowing hot air with the compressor not engaging when I turn on the A/C. A similar thing happened about 2 years ago, but the compressor was turning on and off while now it never switches on (fixed that with a refrigerant recharge). I checked my refrigerant level this time and it appears to be filled up to the correct level (estimated using the color coded gauge on a R-134a refill can so probably not very precise).
While the compressor does not engage automatically I was able to trigger it by crossing the input switch (don't know the correct name) that goes into the compressor using a paper clip. After crossing the wires on this switch the compressor purrs like a kitten. However after running the compressor for a couple minutes I did not notice any change in the A/C temp.
I am a bit of a novice so I am not quite sure if this is a bad compressor, bad pressure switch, a simple overfill or something else. Any help would be appreciated as I would love to fix this thing myself and save some of the little money I make!
You would be low on 134a. To put refegerant in an a/c system you need to pull a vaccume on the system. Any air in there it will not work. It would be worth the money to have some one do it. But I'd look at the compressor case halfs and see if they are leaking before having it charged. You could fix that yourself and pay some one to charge it, if they are leaking.
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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