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Old 09-05-2014, 09:00 AM   #10
ford38v8
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Join Date: Jul 2011
Location: SF Bay Area
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Default Re: Charging /Alternator ??

Bill, All of the above, and one more possible cause for you: The small pulley on your alternator is really too small to get a good grip on your belt. At high rev OK, but at idle it begins to slip and allows the alternator to take a snooze. Try adjusting your belt tension and using belt dressing to confirm this as a cause.
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