NHTSA Complaint #11504730 — 2011 FORD F-250

The contact owns a 2011 Ford F-250. The contact stated while her husband was driving at an unknown speed, the check engine warning light illuminated. The driver was able to continue driving to his destination. The contact took the vehicle to an independent mechanic, where it was diagnosed with needing the DEF (Diesel Exhaust Fluid) heater and the sending unit to be replaced. The vehicle was repaired but continued to experience the failure. The contact took the vehicle back to an independent mechanic, where it was diagnosed with needing the DEF heater to be replaced for the second time. The vehicle was repaired but continued to experience the failure for a third time. The contact took the vehicle back to an independent mechanic, where it was diagnosed with needing the DEF heater to be replaced. The vehicle was repaired but continued to experience the failure for a fourth time. The contact took the vehicle to the local dealer, where it was diagnosed with needing the DEF heater, the DEF pump, and the sending unit to be replaced. The vehicle was repaired but continued to experience the failure for a fifth time. The contact stated while towing a trainer, the vehicle lost acceleration and the check engine warning light illuminated. The contact took the vehicle to the back local dealer, where it was diagnosed with needing the DEF heater, the DEF pump, the injector, and the sending unit to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 150,000.