2018 FORD F-350 Fuelpropulsion System Problems

Unknown component that failed. Suspicion, the fuel system located at the back of the fire wall on drivers side. The fire started in that location and was extremely hot and fast moving. The truck was fully engulfed within 1.5 minutes then burnt the attached 5th wheel trailer and contents. It was a total loss of 3 vehicles 2018 Ford F350, 2021 Dutchman Voltage 5th wheel trailer, and a 2013 Polaris RZR side by side UTV. All was reduced to rubble within 15 Min. Our safety and lives were at risk, we had 30-45 seconds from smelling and seeing smoke to flames. We were traveling on Interstate 15 at highway speeds and had to stop as safe as possible on the shoulder of the road. The vehicle has not been inspected as far as I know, the frame is all what is left. There were no warning lights and all gauges...

This issue is connected with the 6.7L diesel engine. When sitting and idling it starts to idle really fast and the exhaust has an odor and strong fumes. It did not use to do this. I took to my Ford dealership and they say it's normal and there is nothing wrong. I have talked with other people that own the Ford diesel and they have experienced the same issue and been told the same thing by their dealership. No warnings or anything come up when the vehicle does this. If you enter the vehicle and touch the brake or accelerator it will then idle back down.

The fuel filter under the engine began leaking diesel fuel on the hot engine which ignited a fire.