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odd sound

  1. Low "growling noise", low gas mileage on 2014 Ecoboost F150

    F150 Ecoboost Problems
    I have a 2014 F150 Ecoboost with 3.55 axle. Occasionally, under slow acceleration from a stop or slow roll, I hear what is a "growling" type noise from the passenger side front engine area. Not sure if it is turbo related or not...but it does not sound normal. Of course, cannot duplicate for...