Hello , i need some more info, all the reply's i have been getting is the battery voltage i'm pass that i just charge the battery full which the battery is a brand new battery anyways plus the alt is brand new. So what i did last night i recharged the battery, voltage was fine. but as soon as i started the truck up the battery start draining, i'm talking like really fast. so is their any one else can come up with something instead of voltage reg because thats inside my BRAND NEW PCM lol, ALT is Brand New, and Battery is Brand NEw.

 

O and i have a 1995 dodge ram 1500 5.9 ( ALT 90amp )

 

Voltage regulator is in the PCM, not the alternator. If it isn't charging while running, regulator is probably toast.

 

fix the problem for the draining battery is was the ALT fuse, i feel stupid, thanks fellas

 

Merged the two threads, so we have the solution in the same thread as the problem.