ok..this problem is driving me nuts.
. I have a 1993 w350 that will not hold a charge...I've been studying all of the forums trying to find some solution that fits, but no luck so far...I started out replacing the voltage regulator...the one that was on the truck when I bought it was not a dodge part (so the one that I replaced it with wasn't either). it was wired into the blue wire going to the alternator (which I've come to learn is the ignition hot wire) and the green wire (that controls the field terminals) was left intact going to what I'd assume was the old clip for the stock voltage regulator. I hooked it up the same way the old one was. no change on the volt meter. I have another 1993 cummins parts truck that was charging just fine (go figure) so I took the alternator off it and put it on the truck that was having the problem..this time I had the new voltage regulator bypassed (meaning that I had the blue wire intact). and I left the green wire un-hooked (which as I understood it would have should have caused the alternator to go full charge)..and nothing...testing it that way should have by passed the voltage regulator and the PCM and proved that the alternator that I saw working in the other truck was charging this one...what am I missing guys? -Thanks Bob