NHTSA Complaint #11530247 — 2017 FORD F-350

In November, I accidentally put DEF fluid in the fuel. I took the truck to a dealer for repairs. The check engine light had been on before. They drained the fuel system and replaced filters and such. The check engine light was out. There was no mention of any concerns of any further problems. In February I was driving with a trailer in tow and the truck just turned off in the road. I was not even able to get out of the roadway. At the time the engine shut off a warning light came on to tell me there was reduced engine power. I had the truck towed to another dealer near where I was. They ran diagnostics and changed the fuel filters. No mention of the chance of any continuing problems. The truck shut off in the road again on the way home. I took it to a mechanic near my home. He ran more diagnostics and replaced the fuel rail and other components in the fuel system. Again, no mention of any continuing problems. In April, when I was pulling a trailer again it shut off in the highway again. I had it towed to the mechanic near my house again. He did more diagnostics and said the high pressure fuel pump had gone out and had damaged the injectors. I don't yet have the truck back to see if it will actually run now.