icefisherman Posted July 21, 2012 Share Posted July 21, 2012 I have a 2000 cavalier that needs a new/used compressor. I was told I would have to do a vacume on the system before i put in some cans of 134a. What happens if I dont. Anyone try it? Its just a commuter car so if its not going to totaly destroy something I would like to just do it. Quote Link to comment Share on other sites More sharing options...
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