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pulsing alt. light

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pulsing alt. light

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Old

Oct 3, 2004 | 02:22 PM

#1

Road Beater

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From: Michigan

pulsing alt. light

Hey I need advise from some of you geniuses. Ggot a 77 f150, 351m, truck runs alright but now when I shut it off my alt light pulses and any electronics that are left on will pulse on and off too. I'm thinking that it's my ignition switch but if anyone has a better idea I'll check it out. It killed my battery and left me stranded two days ago.

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Old

Oct 3, 2004 | 03:15 PM

#2

ranger429

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Joined: May 2003

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From: Northern Illinois

I would suggest bad diode's in the alternator. Have the alternator tested.

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Old

Oct 3, 2004 | 05:09 PM

#3

Mil1ion

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Plus, check ALL of the connections in that harness,especially grounds.

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