Ford has been sued over acceleration issues with their V6 EcoBoost engine.
Ford says it's related to the angle of the drive shaft. Or in Ford's words 'driveline windup'," complained the upset Ford owner. “Since they haven't been able to find a similar truck without the problem, they've washed their hands of the problem by claiming it's ‘characteristic’ of the vehicle and an ‘acceptable’ vibration. It's not acceptable to me."
The V6 EcoBoost is an option in the 2010-2013 Ford Flex, Taurus SHO, Lincoln MKT and Lincoln MKS; the 2011-2013 Ford F-150; and the 2013 Ford Explorer Sport.
keep reading article "EcoBoost Lawsuit Says the Engine Shakes and Rattles, Before it Rolls"