1989 F-150 Battery Problems

1989 ALL OTHER MAKES ALL OTHER MODELS
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FISH#66
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In my 1989 F-150 the battery light indicator comes on whenever i rev-up the engine, and the battery gauge pegs out and then when i push in the clutch the gauge goes back down and the light turns off. I have replaced both the battery and the cables not long ago, and am confused on what is wrong any help would be appriciated.
Apr 27, 2007 at 3:32 PM
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MERLIN2021
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Try checking the alternator output...I think you have an internal voltage regulator, and it isnn't up to the job.
Apr 27, 2007 at 4:57 PM