Recently my voltage gradually fluctuates between 13+ and 8 volts. I was in a long line of traffic in the heat last weekend, (sitting at entrance to Olcott), so I periodically shut the car off. At one point, my battery was dead, (INSERT PROFANITY!), when I tried to restart. After a jump, the voltage was back at 13+ and the battery was fine. Also, I have a Mark viii fan. Could this be the alternator failing or is my battery on the way out?
Frank it sounds a lot like your voltage regulator is on it's way out. It is part of the Alternator, so I'd say it's a good bet to replace the Alternator.
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