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Charging Charging

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11-10-2007, 10:18 PM   #1 (permalink)
jimdevasure
 
Join Date: Aug 2007
Location: Alabama
Posts: 17
Charging
My battery light comes on and the lights dim when the truck gets to around 4500 rpm. It is a 2003 F-150 with 66,000 miles. Not sure if the alt is over speeding and the regulator is cutting it out. Any ideas???
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11-10-2007, 11:10 PM   #2 (permalink)
FEandGoingBroke
 
Join Date: Sep 2004
Posts: 12,583
Re: Charging
Sounds like an internal regualtor failure...
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11-11-2007, 08:21 PM   #3 (permalink)
bassman97
 
Join Date: Jul 2005
Posts: 677
Re: Charging
My dad had the same thing happen to his 02 F150 everytime you go to around 3,000 rpm. However, eventually the light just stayed on and the alt took a dump. Get that changed since your alt is probably on the way out.
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