Chances are that there is no defect in the EcoBoost engine.<quoted text>
"Government is investigating 2011 to 2013 Ford F-150 trucks with EcoBoose engine.
About 400,000 of Fords popular F-150 trucks with EcoBoost engines are being investigated after complaints that the vehicles can lose power during acceleration."
FORD = Found On Road Dead
Nyuk! Nyuk! Nyuk!
The engine as designed just doesn't have the power that the customers expected.