Alternator Whine - Saab 9000 Bulletin Board - Saabnet.com
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Alternator Whine
Posted by DanaH (more from DanaH) on Tue, 14 Oct 2008 08:42:26
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Interesting problem cropped up on my 97 CS.
My alternator has been whining with pitch changing according to rpm. Makes engine noisy above idle. This has been going on for a few thousand miles. I replaced idler and tension pulleys but then realized it was the alt. It finally dawned on me that it started sometime after I had installed an Audiovox line-in 12volt device to allow connection of my iPOD into my oem stereo without having to use one of those FM transmitter devices. Did I blow a diode in the alt? Should I have not used the cig liter power and ground?
Appr any help.
DanaH
97 9000CS, 115k miles, 20k on a new alt volt reg/brushes
posted by 146.243.4...
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