91 fj80 dead

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I have had the 91 80 for almost a year and today got in to drive it and nothing ...no lights and no start. so I charge the battery and it starts... let it sit for an hour and its dead again ( new battery when I got it diehard 72 month heavyduty) new alt. also, volt meter shows its charging. any ideas?????? help before I sell it for a mighty FZJ80 and get rid of that damn 3FE


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[strap]

anyone? someone must have a guess? please, I dont even know where to start....dont make me degrade myself by begging for help

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[KliersLC]

How new is your Alt? Also, is the voltage regulator built into the alt. or is it separate. I have heard of diodes going bad and draining the battery back through the alt/reg. Disconnect the battery and check for continuity between alternator pos and neg battery cable. If there is continuity, you most likely have a bad diode. Also check for other shorts in the electrical system.
Good luck
Dan

 

[strap]

The alt. is about a year old and I think everything is built in....I will check tomorrow if I get a chance, I will also have the battery tested .

thanks
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[jjbodean1970]

that's what you get for talking bad about your MIGHTY 3FE!!!