Ecoboost Performance Forum

Ecoboost Performance => Troubleshooting, Maintenance, TSB Articles => Troubleshooting => Topic started by: BoostedSHO on June 18, 2016, 08:29:39 PM

Title: Front-end vibration
Post by: BoostedSHO on June 18, 2016, 08:29:39 PM
Having issues with my 13 SHO PP. Anytime I apply the brakes I get a very noticeable vibration from the front-end. Almost positive it's coming from the front passenger side. Just changed the brakes today and the problem still persists. Tires have less than 3k miles on them and were rotated when the brakes were changed. Car has almost 34k miles. Any ideas?
Title: Re: Front-end vibration
Post by: glock-coma on June 18, 2016, 08:37:21 PM
Do you feel it though the steering wheel? Or the brake pedal?
Title: Re: Front-end vibration
Post by: CroR1 on June 18, 2016, 08:39:55 PM
Did you replace the rotors as well? Any good pics you can post of the old rotors, if you have not replaced them. If you run your fingers over the rotors, when they are cold obviously, and you feel ridges and rough area (if they are scratched), most likely the rotors are warped, and there lays your problem.
Title: Re: Front-end vibration
Post by: BoostedSHO on June 18, 2016, 08:51:13 PM
Rotors where replaced as well. I thought that's what was giving me the vibration which is why I replaced the pads and rotors. I don't feel it in the brake pedal or the steering wheel
Title: Re: Front-end vibration
Post by: glock-coma on June 18, 2016, 09:06:46 PM
Sounds like it might be a tie rod.
With the car off and in accessory mode try to move the steering wheel back and forth at a steady pace quickly. If you hear a clucking sound it's the tie rod end. 


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Title: Re: Front-end vibration
Post by: CroR1 on June 18, 2016, 09:41:40 PM
check tie rods and ball joint for play.
Title: Re: Front-end vibration
Post by: SHOdded on June 19, 2016, 12:18:46 AM
In addition, check that the wheel lugs are torqued properly.  Too loose or too tight can each cause vibration issues.  Do you have directional tires by any chance?  Did you grease the caliper pins when you changed out the brakes?  The pins could be sticking (hopefully its not the piston).
Title: Re: Front-end vibration
Post by: ZSHO on June 19, 2016, 07:14:35 AM
Did they balance all four wheels!!!...also would not rule out a Bent rim from the inside... Z
Title: Re: Front-end vibration
Post by: SHOdded on June 19, 2016, 07:34:47 AM
True, Z, the daisy wheels do tend to crack as well.
Title: Re: Front-end vibration
Post by: BoostedSHO on June 19, 2016, 03:16:15 PM
All the wheels were road force balanced and were properly rotated when I changed the brakes yesterday. Pretty sure it's not a wheel or brake issue at this point
Title: Re: Front-end vibration
Post by: ZZZRSHO on June 19, 2016, 08:29:11 PM
I just had happen to me. Felt a rotational vibration in the accelerator. Mine is a 15, and it was a wheel bearing believe it or not! The whole car had a vibration.
Title: Re: Front-end vibration
Post by: Gjkrisa on June 20, 2016, 09:32:59 PM
When I did mine on my impreza I wasn't able to get the brake pins in with the brakes so I left it out I got the same issue until I was able to get them in Brian Mobil 1 on YouTube has advise on how to get them in and issues think it's in this episode https://youtu.be/BnSi8nI1188

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Title: Re: Front-end vibration
Post by: BoostedSHO on June 21, 2016, 06:32:25 PM
It is a rotational vibration. Only feel it when the brakes are applied and it's more pronounced when braking at higher speeds. I don't feel it in the steer wheel or brake pedal. Got an appointment to drop it off on Thursday. Hope they find something so I don't have to pay the $70 diagnostic fee for nothing
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