Join Date: Jul 2009
Location: Vancouver, BC, Canada
Feedback Score: 0 reviews
Kind of puzzling for sure. I have had bad alternators though. I put 3 in during a 4 month period. The parts store said it was just bad luck.LOL. After the third failure, I upped to the 220 amp alternator and it is still going strong. I figure either my old one couldn't handle all the load of my accessories, or I just got lucky. Prolly doesn't help, but that was my experience. The ones that went bench tested fine, but in the truck they would charge till warm, then the needle would jump down to 10 volts, then up to 18, and back down to 10. So something in there was wacked on all three. If you do end up replacing it, maybe try the higher amperage. Higher voltage (15 an up) will kill your batteries as I found out on the three. They actually were boiling! Is it real cold were you are by any chance, or did you get it wet some how. Mine all started off an engine shampoo. Killed the first one, then the other two went as well, even though I didn't shampoo them. So I could have got something else wet that shorted the others. Sorry I don't have more. Good luck.
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