Vibration between 50 & 70 mph

Discussion in 'Issues, Repairs, Warranty, TSB, Recalls' started by icarumba, Jan 21, 2015.

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Do you experience vibration and rumbling between 50 and 70 mph?

  1. No

    54.1%
  2. Yes - V8/MT

    20.2%
  3. Yes - V8/AT

    12.4%
  4. Yes - V6/MT

    1.1%
  5. Yes - V6/AT

    3.4%
  6. Yes - EB/MT

    2.4%
  7. Yes - EB/AT

    6.3%
  1. hlh1

    hlh1 Well-Known Member

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    #3521 hlh1, Nov 4, 2018
    Last edited: Nov 4, 2018
    I just spent the past several hours trying the hose clamp method, but was not able to make this work. Everything was worse than it was. I'm thinking my vibration is small enough that the hose clamp weight is more than is needed.
     
  2. socketman

    socketman Active Member

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    Just some ideas here . Remove the wheels and put some nuts on to hold the rotors on and squeeze back the calipers. This should confirm if its wheels or driveline since the shaft angle doesnt change on an irs setup . Go online and get an app for your phone to read the vibrations then try using a hose clamp. Moving them up or down the shaft should change their effect on the balance. Also dont make wholesale changes just slight variation in position.
     
  3. hlh1

    hlh1 Well-Known Member

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    I put the hose clamp near the differential and clocked it about 30 degrees each time I moved it. The wheels and tires are fine, they were checked and fixed by the dealer. I'm feeling the typical rumble on my seat that says it's the differential.
     
  4. GT Pony

    GT Pony Well-Known Member

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    How much back lash do you have in the differential? If it's excessive you can get noise and rumbles from the differential.

     
  5. hlh1

    hlh1 Well-Known Member

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    My back lash didn't "clunk" like this when I was rotating the wheels and driveshaft to move the hose clamp.
     
  6. Cobra Jet

    Cobra Jet Well-Known Member

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    Attached is Ford’s Procedures for diagnosing NVH:
     

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  7. speedfrk

    speedfrk Well-Known Member

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    Has anyone with an 18 complained of this problem? My 15 was a disaster and I don't want to go through that again.
     
  8. Cobra Jet

    Cobra Jet Well-Known Member

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    Attached is Driveshaft NVH diagnosis:
     

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  9. grey_horseplay3.7

    grey_horseplay3.7 New Member

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    Here's how I got rid of my driveline vibration.....Drove my car to Subaru and traded it for a new WRX. Life's too short to keep going through this bs. Been smiles per mile ever since.

    2017 V6 manual w/ 3.55 diff - bought from new. Had my driveshaft replaced 3 times, tires road forced balanced. Every time the vibration would come back within a few days. Eventually the Ford Dealer tried to tell me it was a characteristic of the car when they couldn't fix it. The last time I brought it back to them the service advisor said "you can't just bring it in when you feel a small vibration." The work order confirmed the DS was still out of balance.

    Was going to try installing Steeda suspension parts...but honestly...we shouldn't have to go out of pocket to fix a driveline vibration issue on a brand new car. I'm truly happy for the small % of owners who managed to fix their issue.

    Still a fan of mustangs but so disappointed in Ford's handling of a known issue.
     
  10. Cobra Jet

    Cobra Jet Well-Known Member

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    Ford’s tire NVH diagnostics and tire balance procedures:
    (Attaching the docs purely for reference for those interested. Let it be known the driveline vibe is 99% of the time NOT tire related. Ford has their Service Centers always perform the tire balance dance not once, but multiple times. Customers have been told it’s tire related, however it’s NOT in 99% of the cases).
     

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  11. ABS550

    ABS550 Well-Known Member

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    Did you use one hose clamp or two? One hose clamp may in fact be too much weight. By adding a second hose clamp, they can be spread apart to effectively cancel (balance) each other out. If the two hose clamps are 180 degrees apart, it is like having no hose clamps at all. If they were say 170 degrees apart, it would be like having a fraction of one hose clamp in place.
    As per my much earlier post (with pics), I used one hose clamp, adjusted it to the best position for the lowest amount of vibration, then added a second hose clamp and fine tuned it to make it near perfect. In my case one hose clamp would have been too much, but with two clamps, spread quite far apart, it came into balance.
     
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  12. hlh1

    hlh1 Well-Known Member

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    You make a good point, especially since my vibration is minimal compared to others. I need to up my Aleve and get back under the car again and try this sometime.
     
  13. Wriggly

    Wriggly Well-Known Member

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    I did the opposite of what you did. I bought a 15 WRX in spring of 14. Nice car, just wasn't fast enough for me. Traded it on a 15 GT and that was a big mistake. The Mustang was beautiful to look at but turned out to be a big turd.
     
  14. socketman

    socketman Active Member

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    hlh1 the reason i recommend taking off the wheels is not becasue they could be imbalanced its because an unloaded tire hanging off the suspension could induce a vibration. I have performed this operation on live axle vehicles a few times over the years working in the trade ,even after sending the shaft out for balancing their are other harmonics that influence the drive shaft all the way down the line. Hope this helps
     
  15. hlh1

    hlh1 Well-Known Member

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    Good point, but I didn't run the car on jack stands. I ran the car on the road while trying to balance the drive shaft with the hose clamp. thanks!
     
  16. Unadilla248

    Unadilla248 Well-Known Member

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    I am 6 months Vibe Free thanks to replacing stock shaft with DynoTech shaft definitely the best $900 I have spent, I tow my drag bike and it sails down the highway 65-80mph super smooth pulling 1000 pounds.
     
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  17. hlh1

    hlh1 Well-Known Member

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    This is probably what I'm eventually going to do.
     
  18. Unadilla248

    Unadilla248 Well-Known Member

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    It was an expensive risk cause a few said it did not solve Vibe for them but solved it on mine.
     
  19. JakePSD

    JakePSD Well-Known Member

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    So over 3500 posts and still no definitive amswer? Are the 18s having this issue? I did read somewhere on here that the gt350s are not. What is different with the 350 that they don't have this issue?
     
  20. socketman

    socketman Active Member

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    ONly one i know of is that the GT350 has a 1 piece DS
     
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