Originally Posted by
rwtdct
Well here is the outcome
After checking every possible thing testing wires, cleaning cables, replacing both batteries and battery light still being on. I decided it had to be something in the alternator.
So, I went and and got a new (rebuilt) alternator (old on was still under warranty) and BAM!!!!!!! battery light is no longer on. Problem solved.
So we know it was the alternator but do we know what about the alternator caused this? What do the little wires on the back of the alternator do. I just just put a re-manufactured alternator on my truck and now the light is on all the time too.