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Re: over-voltage from alternator?
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CarGuru > Technology > Re: over-voltage from alternator? 19 January 2005 20:16:35
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Re: over-voltage from alternator?

Mike Romain 19 January 2005 20:16:35
 Whenever my alternator acts like that, I either have a loose or polished
up fan belt or a dirty main battery connection.

With the bad belt, the battery is never fully charged so the alternator
is trying to 'catch up' so I see a high reading on the volt gauge and
the lights get brighter.

When I have a bad connection, same deal except it seems to put out
higher to jump the bad connection.

Or the alternator's regulator could just be worn out.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Brian wrote:>
What could cause an alternator to put out too high a voltage? I will be> doing some checking tonight, but what has me worried is the wipers are going> too fast when the engine is a road speed but are normal at idle, and the> lights are showing a noticable brightening from idle to say 3000 rpm. Kind> of like an old generator car which couldn't charge at idle.>
Probably just worrying on my part, but this is my wife's car which I rarely> drive, and I am always on the lookout for problems creeping up when I do> drive it. 96 Hyundai Elantra, fairly recent battery. Would charge voltage> over 14.5 be a good indication of a problem?>
Thanks, Brian>
Thanks, Brian
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CarGuru > Technology > Re: over-voltage from alternator? 19 January 2005 20:16:35
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