Quote:
Originally Posted by tjts1
You probably just need a new voltage regulator.
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Quote:
Originally Posted by pimpernell
You may have a bad diode in the alternator that will drain your battery.
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Thanks for the suggestions, I agree something inside the alternator has gone bad. For my time, I'd rather swap the alt than troubleshoot its internals. It has 154k miles on it, so at this point, a rebuilt unit with new bearings and such seems a good investment.