According to the lawsuit, the 3.5-liter V-6 EcoBoost engine "Contained serious latent design, manufacturing, or assembly defects" that cause vehicles to shake, misfire and rapidly lose power.
Two of the plaintiffs, a married couple, claim their 2010 Ford Taurus SHO lost power and stalled several times.
Ford hasn't recalled any vehicles for the alleged defect, and NHTSA hasn't opened an investigation, AP said.
According to the suit, the problems stem from a buildup of moisture in the engine's intercooler.
Ford knew of the problem, the suit says, because it published several technical service bulletins and suggested potential fixes to dealers covering the F-150. …show more content…
The V-6 EcoBoost, introduced in 2009, has been offered in the 2010-13 Ford Flex crossover and Taurus SHO, 2010-13 Lincoln MKT crossover and MKS sedan, 2011-13 F-150 pickup, and 2013 Ford Explorer