Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
Hi Shaun What year is this t800?
Check in battery box for a breaker (click here) it will have a #6 cable from battery positive going to it that is what feeds fuse box, see if you have power on both sides of breaker, if not jump breaker.
If not there check by starter inside frame rail
You should have two breakers
on firewall engine side across from steering wheel there should be a cable that feeds power to fuse box make sure it did not come out
let me know
Happy to hear you got it fixed