Ford Owners: EcoBoost Engine Loses Power on Acceleration

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Three Ohio Ford owners have filed a lawsuit against Ford, alleging defects in 3.5-liter V6 EcoBoost engines.

It was the second lawsuit in as many months, The Associated Press says. In April, car owners filed a similar suit in a Louisiana district court.

While accelerating, the EcoBoost engine shudders and rapidly loses power, the new lawsuit says. Two of the plaintiffs said their 2010 Ford Taurus SHO has stalled on multiple occasions because of the defect, and the third said it has similarly affected his F-150.

The company’s tagline for the engine is “Performance of a V8 – Fuel Economy of a V6.” It uses direct injection and turbocharging to give the engine a boost without hurting fuel efficiency. Ford wouldn’t say how many vehicles it has sold with the engine, which also comes in three- and four-cyclinder varieties not mentioned in the lawsuit.

The suit claims more than 100 drivers have reported similar problems to the National Highway Traffic Safety Administration. So far, there has been no recall or investigation into the problem. The lawsuit claims Ford has acknowledged the problem to dealers without notifying owners.

AP provided a breakdown of cars the engine might be used in:

Ford has been selling vehicles equipped with the V6 EcoBoost since late 2009. It’s standard on the Taurus SHO model and an option on the Ford Flex, Lincoln MKT and Lincoln MKS sedans from the 2010-2013 model years; the F-150 pickup from the 2011-2013 model years; and the Ford Explorer Sport from the 2013 model year.

You can check for recalls or file a safety complaint about your vehicle at NHTSA.gov.

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