my name is mario, i am from vienna/austria. My truck is a 2004 F350 6.0. These trucks are not very common in Austria, so nobody knows how the work really...
Have a problem with my charging system with dual alternators. When I cold start the truck, after around 30sec the battery warning light comes on, stays for 30sec to 1 min and turns off. Just when cold start the truck, when engine is warm, no problem.
Already changed the lower alternator because I had some volts when I did a voltage drop test on the ground side.
Problems started with a mouse or something like this living in the area of my turbo und are some of the isolation on the top wall of the turbo. From then the battery light came on. Then FICM
sueded, reason was a short to ground on the main board. So I had to change the FICM
. Battery light stayed on. Did a drop test on the alternators and found volts on the ground side of the lower alternator, changed it. Problems still there.
I am scared the I kill my FICM
Thanks for your help