Quote:
Originally Posted by jbrittonjr
I think you want around 7 volts from the alternator to charge the battery. If your meter is going "crazy" when you check for direct current voltage perhaps your alternator has a bad diode, regulator, or you have a grounding problem. Try checking for alternating current from the alternator. In this case, AC bad, DC good.
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How do you check at the alternator with the one wire setup? One meter lead to the wire, and the other to the body of the alternator?
Are you proposing actually checking the alternator to see if it reads AC? I have never heard of this