[Krazyjoker]

I've changed the PCM the alternator the battery and I still can't get it to charge I can charge my battery overnight and drive it throughout the day and it does fine but you can't turn no lights on or anything like that to pull the power need help please

 

[4.3L XJ]

Have you checked the voltage on the battery with engine off and running? Do you have a check engine light on?

 

[xjthing]

I had bad wiring that was giving me fits charging the battery. The heat and age killed the one wire going to the battery. I found it when I upgraded to 2ga wiring and military style terminals. It was hidden under wire loom running along side the battery.