I was just wondering if anyone knew what could cause the battery light to turn on when a certain RPM is hit. While driving i have noticed that around 3000-4000 rpm the battery light will turn on. When i asked to have battery checked at Autozone they said it was probably the tensioner spring. Anybody got any ideas to help me out?
Yeah - could be your serpentine belt is slipping due to a bad tensioner.
If that is it, I bet some folks around here might have one lying around.
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1966 Oldsmobile Toronado - currently NOT on jackstands
is the belt lose and check and see if u can spend the alt by hand if so u need tighten the belt!!!!
I will have to check that when it stops raining and im not at work... which is hard considering i work almost 16 hours every day. but i think it is there is a sound that makes me think its loose..
it could possibly be the belt slipping, however...this happend to me...once i got up in the RPMs my battery light started going on then when the RPMs would drop it would turn off. eventually it started happening at lower and lower RPMs until it did it at idle. Turned out to be the alternator. they tend to do this when they start going bad. Go get your alt tested
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