Quote:
Originally Posted by AntzFreshWhip
yes, i do have the tow package and a factory alternator, the truck is 2 yrs old but the alternator is 1 yr old. a yr ago, there was a squeaking noise on cold mornings and the dealer thought it was the bearing in the alternator. so they switched the alt and said if it still makes the noise to let them know. well it still did it and it was a bad tension pulley bearing. but i reali doubt its the alt. i think my batt is on its way out but aint sure.
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That's certainly a possibility too. Certain battery problems will cause your charging voltage to decrease, because the amperage the battery is pulling is greatly increased. I'd get the battery load tested, or, if it's "gassing" or you see evidence of it boiling fluid out from under the caps, I'd simply replace it.
With a bad battery, a charging voltage test can be pretty meaningless. Wish we still had ammeters, like the good old days!
If the amperage didn't drop to near zero while you were driving, you KNEW you had a bad battery!
- Jack