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hmmm......
Posted by chrisx (more from chrisx) on Sat, 30 Jun 2001 13:35:00
In Reply to: Re: jumper 12v to the a/c clutch while charging. n/m, SDBWORKS, Sat, 30 Jun 2001 13:00:49
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well....not to be rude....but you should not embark on perilous missions without a good manual and a thorough understanding of the components and what is required to bypass safety systems while in maintenance mode. there is a reason why A/C work is so expensive.
to the question though. there is a wire on top of the ac that activates the clutch. it goes through a comp temp switch on top of compressor with connectors on each side. take 12v from battery plus and apply to clutch side connection. that should audibly activate clutch. do it with engine off first to verify. start engine and open freon. activate clutch. freon can should cool as you it discharges. first though if system is dead it must be vacuumed out. saab A/c sucks anyway....but good luck...and buy a bently and look up the wiring. there are additional requirements to get it all working. i.e. press switch on dryer. throttle pos switch for power while passing..coolant overheat switch etc... i just do without. after owning a 1975 pontiac catalina with a walk cooler for a/c..the pittance of cold air a saab puts out is not worth the hassle.
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