Low growl when coming to a stop

Discussion in '12th Generation F-Series : 2009 - 2014' started by Mark, Dec 1, 2017.

  1. Mark

    Mark Junior Member

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    2014 3.5
    Getting a low growling noise when coming to a stop. H happened once before and I ran it through its 4-wheel high for about 20 miles and then went back to 2 wheel drive. The noise stopped for about 2 weeks and has now come back. Anybody have this type of problem?
     
  2. Roush PSD Interceptor

    Roush PSD Interceptor Straight Piped Diesel Staff Member

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    When was the last time the fluid in the T case was changed ?
     
  3. Mark

    Mark Junior Member

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    I guess it's time at 35000 miles.
    Thanks
    I'll let you know.
     
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  4. Mark

    Mark Junior Member

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    Ok so I took it in to the Ford dealer and they said it was part of the four wheel drive vacuum system that engages the transfer case. They took it apart and found that the system is like brand new condition. So we ordered a sensor that is up by the brake booster and we're going to replace that to see if that helps I'll keep you updated.
     
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