90 f250 7.3l electrical problem

[rocker90]

hey guys im new here and this is the first diesel i have owned. it was a gift from my uncle had alot of problems that i have pretty much gotten rid of like cracked injector caps, bad o rings in the oil cooler, cylinder not firing cuz of a clogged injector and many others but i cant figure out this one..

i have a draw somewhere on the truck that i cant seem to find cuz for the last few weeks everytime i drive the truck it runs fine until i shut it off then go to restart it the batteries are drained or dead, i thought the altinator went bad but i had it tested and it was fine, the problem was the voltage ragulator had blown so i replaced that and it was fine for a few days after charging the batteries back up but this morning they were dead again. anyone have any ideas what might be causing this?

[jeffgordon24]

does it not atteris start up right away after turning it off or after a while . If it is after a while you might have a drain on the batteries or a dead battery,

[cdnsarguy]

Try disconnecting both positive battery wires...... use a test light with clamp to right plus battery post and pointer secured to the wire clamp. See if there is a power draw indicated by a light on the tester...... Now start pulling cab fuses one by one, if there is no difference in the light replace that fuse and continue until the light goes out. That will indicate what circuit is drawing power. Now check and see what is on that circuit and find the draw.

[rocker90]

ok ill try that, have to wait until tomorrow tho but ill keep you posted