Re: AC question - Saab 9000 Bulletin Board - Saabnet.com
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Re: AC question
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Posted by BG (more from BG) on Mon, 17 May 2004 19:36:46 Share Post by Email
In Reply to: AC question, Mitja Jaksa, Mon, 17 May 2004 14:27:11
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1st thing before you go any further... What is the system pressure... IE.. what is the low side pressure with the car off and what is the high side pressure with the car off..

If the pressure is not high enough the compressor will not turn on. To test the pressure switch... Make sure if nothing else that you either start the car while testing or at least "bump" the car so that the starter briefly engages.... If you dont, you cant test the switch correctly because the ac relay will not engage without a start signal. It will also take 10 seconds before you can test.. After that, test all wires with a test light. You should have power on at least 2 of the wires, and should have power on all 3..... If not, you could have a bad ac switch, bad ac relay, or a bad anti-frost switch....

Test, and post your results and I will walk you throught the rest of it.

posted by 69.137.10...

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