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Re: Vacuum out AC System----cheap way???
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Posted by Glen in TX on May 05, 2007 at 09:56:19 from (208.246.9.110):
In Reply to: Vacuum out AC System----cheap way??? posted by Leaky Boot on May 05, 2007 at 06:35:27:
I guess some get lucky not purging all the air or moisture out of a system. If you don't get all the air out you don't reach full potential of the system and on really hot days it isn't going to cool right and you could get excess high pressure and will blow off some new hoses and find every weak spot in the system. It's worth doing it right the first time for what parts cost if you have to borrow, rent or buy a vaccuum pump!! I got two pumps and the one old snap on one is basically a refrigerator type pump. You need one that can run for 30 minutes to a hour not getting too hot and hold a constant vaccuum on system. Most vaccuum pumps just run ATF for oil in them unless they specify otherwise.
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