Re: A/C Now What? Expert Diagnostics Needed - Saab 9000 Bulletin Board - Saabnet.com
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Re: A/C Now What? Expert Diagnostics Needed
Posted by soneway (more from soneway) on Wed, 19 Jul 2006 17:45:21
In Reply to: A/C Now What? Expert Diagnostics Needed, Rudy, Wed, 19 Jul 2006 10:04:19
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maybe try this...
you'll need a jumper with aligator clips on it.
the next time the AC exhibits the issues of cycling on and off and not real cold air. while it's in that mode, park the car and make sure it continues to cycle... then take your aligator clip, shut the engine OFF first, unplug the connector at the wire on top of the compressor. jump from +12v to the connector, the clutch should click - this is engaged. start the engine and wait about 3x the time of a "cycle" from before. if the car gets cool, then suspect an issue with the over pressure cutoff or amount of coolant in the system.
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