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post #1 of 3 (permalink) Old 09-11-09, 02:53 PM Thread Starter
Doozer
 
Join Date: Sep 2009
Location: Nedrow, NY
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Overcharge

I have a 78 f150 with a 400 in it. i put a new alt in it and a new voltage regulator in it. when it idols its pushin about 13 volts, but when i hit the gas it jumps right up to 17/18. any suggestions? thanks

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post #2 of 3 (permalink) Old 09-11-09, 05:33 PM
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Re: Overcharge

Try running a seperate ground from the alt to the frame. Cost is next to nothing and may solve your problem.
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post #3 of 3 (permalink) Old 10-18-09, 04:25 AM
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Re: Overcharge

Might want to have the battery "Load tested".
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