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Ford Owners File Lawsuit, Claim EcoBoost Engine Loses Power During Acceleration

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2011 Ford F-150 EcoBoost

2011 Ford F-150 EcoBoost

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Late last year, Ford owners made headlines when they sued the automaker over inaccurate fuel economy claims for the Fusion Hybrid and C-Max Hybrid. According to the Detroit News, Ford now has another lawsuit on its hands -- this time, over its acclaimed EcoBoost engine.

The suit has been filed by three Ford owners from Ohio, who say that the company's six-cylinder EcoBoost engine is defective. The three claim that the engine has caused their vehicles to shudder and lose power during acceleration. (Our own John Voelcker noticed similar problems in a test drive of the upcoming 2014 Ford Fiesta, outfitted with a 1.0-liter, three-cylinder EcoBoost.) Two of the plaintiffs (a couple) drive a Taurus SHO, the other owns an F-150 pickup.

There are several interesting things to note about this case:

  • The suit involves only the six-cylinder EcoBoost. Ford also produces three- and four-cylinder versions of the engine, and all three variants make use of similar turbocharging and direct-injection technologies. 
  • According to the lawsuit, more than 100 complaints about the six-cylinder EcoBoost's performance have been filed with the National Highway Traffic Safety Administration, though NHTSA hasn't launched an investigation into the issue, nor has Ford recalled any vehicles over those complaints. (The automaker did, however, recall 2013 Ford Escapes with 1.6-liter EcoBoost engines for an unrelated fire risk.) 
  • A similar lawsuit has been filed in Louisiana. The law firm representing the plaintiffs in that case state that "Many Ford F150 EcoBoost owners have reported that their trucks have stalled, shuddered, failed to accelerate and/or entered into limp mode while driving." The firm claims that the problem is related to the Charge Air Cooler and cites technical service bulletins from Ford intended to address the problem. 

Ford has yet to issue a statement about the lawsuit, but you can be sure that the automaker is looking into the matter. After all, the EcoBoost engine is slated to play a big role in the company's future.

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Comments (19)
  1. Happened to my Son's truck a number of times. Usually after running on the highway for 3or4 hours and then you try to pass with full throttle and the engine just basically quits with you out there in the passing lane. They modified his truck after many complaints and so far it seems ok.
     
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  2. Sounds similar to my experience back in the 90's with my '88 full size Bronco. The thing would stall in traffic after about 2-3 hours of driving. I hated to get rid of it, but it caused me too much grief.
     
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  3. I can believe it, every Ford I have ever owned has been a dog!
     
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  4. Funny.
    Nothing is more reliable than yuor dog!
     
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  5. I've had both SHO and F150 ecoboost. Both run great. These people are just experiencing turbo lag and don't understand it.
     
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  6. Your don't understand!!!! It is not turbo lag, I've driven turbo engines for 30 years and I know turbo lag. The engine just goes into limp home mode and the power totally disappears. This happens regularly to many owners of the 3.5 and generally occurs after 2-3 hours of highway running and when you apply full throttle as in passing a truck, the engine goes into limp home mode. Ford has a fix for it and they put it on my Son's truck and so far it seems to work. It is caused by a build up of moisture in the intercooler and the sudden rush of air causes an ice build up and chokes the engine.
     
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  7. That sounds pretty consistent with the claims made by the plaintiffs in Louisiana. Follow the link in the third bullet point above -- the law firm even posts some of Ford's technical service bulletins that address the problem.
     
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  8. I own a 2012 Edge SEL Ecoboost that does the same thing. Put your foot on the accelerator and nothing, dead spot for about 2-3 seconds. I have complained to Ford with no response. How do I get this issue addressed?
     
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  9. I own a 2010 Taurus SHO with the performance pack. I have never had any problem with hesitation. The engine has been nothing but impressive. Some time there are issues with all cars, but mine has been outstanding!
     
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  10. just buy the most dependable pickup on the road,the chevy Silverado,old tried and true pushrod v8,nobody builds them like chevy,i have a couple of ford cars but when it comes to pickups wouldn't drive anything but a chevy.
     
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  11. And you probably are still using a VCR flashing 12:00.
    Get into the '80's. Pushrod motors are for suckers.
    Just because GM has no money to design a new motor you keep buying their old crap. Keep bailing them out. The government even now knows better.
     
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  12. There's no replacement for displacement, Stop trying to make tiny engines do the work of their larger cousins.
     
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  13. The size if the engine has nothing to do with a car not responding properly when you step in the gas. My Ford fiesta does the very same thing. The engines in a four cylinder 1.6 L engine with plenty of balls for the little car. When it works fine, it accelerates fine and with more than enough power. Surprisingly powerful for a little car. Not just that, I've driven sport bikes for 25 years, everything from 600cc to 1100cc bikes, and I've never had that issue with a bike. And motorcycle engines are very compact but yet powerful for their size. My new ZX-10's stock engine is just shy of 1 L, yet it makes roughly 187hp and it accelerates beautifully. 0-60 in les than 3 seconds.
     
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  14. My 2013 Ford Fiesta does this and much more. It is not EcoBoost. It drove fine until the 4th day when it started making noises from the engine area which we were told was timing tensioner area noises but no fix for it yet. Then came the transmission noises and then the shuttering, lurching, not engaging in proper gears on hills and much more. All of this was gradual and none of it occurred on test drive. I asked the Ford engineer why it did not do any of this until 4 days later but he had no answer. He stated that all of this is normal for the powershift transmission. He also said that a driver can teach the transmission bad habits. I beg to differ as I nor anyone I know drives their vehicle like a frog jumping down the road.
     
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  15. My wife and an just purchased a new 2014 Fiesta. We have had it for 3 days when it started doing the same things others are complaining about. We went up to the mountains and there were many times in which I stepped on the gas with no response from the engine. I'll be taking the car back to the dealer tomorrow to see what they tell me. Probably they are going to give me some bull. For legal reasons I'm going to record my conversation with whoever I talk to in the maintenance department. To make it usable in court I will tell them before hand that I'm recording the conversation. After reading the comments of others I'm starting to worry about having bought a lemon. This is my first Ford and American made car ever, and perhaps my last!
     
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  16. get rid of it this is the start of the problems tell them you dont want the car.
     
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  17. Purchase date 02/28/2013 Ford f-150 Lariet Flexfuel. My truck only has 11,000 miles on it, and I do not want it back.

    August 24, 2013 – My wife was downstate school shopping for my son and pulled out on Telegraph Road. Because it wouldn’t accelerate, an accident was almost caused. The truck started shuddering and would not go faster than 5 mph. It went into protection mode. Took the truck into Gaylord Ford, Gaylord Michigan on August 26, 2013 to have them check why it would do that. They kept the truck all day and I was told they couldn’t find anything wrong with it.

    August 30, 2013 – My wife and son just turned off Highway 65 onto Highway 72 and my wife was at 45mph trying to get the truck to 55mph. The truck started to shudder and dropp
     
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  18. The Fiesta is a piece of crap anyway you put it. Settling out of court with ford after leasing one a couple of years ago. 2011 model to be exact with the eco-lose engine and bs transmission. I advise everyone who is experiencing these problems needs to read up on there state laws and contact an attorney. Good luck to all and heads up don't bother contacting ford corporate they don't know what customer service is.
     
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  19. I think the problem is that FORD employed the Ecoboost (turbo) feature on many engines very quickly..
    The inline 3 1L ecoboost and the 1.6L inline 4 ecoboost do not have these problems.. Granted they do not reach their claimed MPG's but so many smaller cars with the two inlines engine mentioned above drive around on european roads with no problems..
    I guess they just have to go back to the drawing board with the 3.5L V6 Ecoboost and work out the problems..
     
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