Alternator dont charge battery ,no power coming from back of alternator?
If there is power to the big wire that is bolted on to the back of the alternator and no power out of the small wires that plug in to the alternator then it is possible you need to replace your alternator. start the vehicle and check to see if there is 14 volts at the battery while the vehicle is running if there is then the alternator is good if not replace your alternator and charge your battery with a charger to make sure you have a proper charge on the battery.
Replace alternator it could be that the regulator is gone or the stator is burnt either way best off replace whole unit, hope this was helpfull
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