Hello, I am trying to get some help regarding a 2008 Ford F350 6.4 twin turbo. Has 136,000 miles on it. Was driving last Thursday and coming up a bridge the EGR opened and a few seconds later the truck shut off. Vehicle will not crank, Dash will come on but will not even try to start. Replaced the batteries and still nothing. I am looking for any help regarding this truck. Thanks!