2015 Ford Transit fuel system problems

While driving on the highway, acceleration shuts down and I lose the ability to control speed. I had to coast to the side of the road even though the engine was still running and I was rear-ended. After I shut off the vehicle, it turned on and returned to normal operation. This has happened multiple times. The throttle body was replaced in 2021 at 117,444 miles and is having this issue again now. I have a fleet of Transit vehicles and this has happened on 4 transits from 2015-2018 a total of 6 times now.

Tl* the contact owns a 2015 ford transit. The contact stated that the vehicle stalled numerous times while driving on an incline or on a normal road surface, and when the cruise control was engaged. The contact had to place the vehicle in neutral and turn off and restart the engine in order for the vehicle to regain normal function. Also, while driving 30 to 70 MPH, the reduce engine indicator illuminated. The fuel tank contained metal fragments. Akins ford also stated that the fuel tank had metal fragments.