Re: just remembered, V=IR - Saab Saab Model 99 Bulletin Board - Saabnet.com
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Re: just remembered, V=IR
Posted by LJB (more from LJB) on Tue, 27 Jan 2004 15:03:43
In Reply to: Re: one last thought, LJB, Tue, 27 Jan 2004 09:20:40
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I just remembered that V=IR. If I measure voltage from alternator + to battery +, I should get a really low number. Unless resistance (R) is high and thus a bad cable on the positive circuit. So I loaded up the alternator, increasing I, and measured virtually no voltage alternator + to battery +. So my cables on the positive circuit are good. The red/black/yellow cables going into the alternator checked out good also and the idiot light lights with the key on.
In summary, the alternator fails the performance test under load, only putting out 20 amps max. I've ordered an alternator, hopefully that fixes it.
posted by 24.6.5...
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