AMMO

Hello all,

I have a 2010 F150 4x4, mostly stock with Oem Goodyear wranglers. No suspension mods at all. At 70 mph I get some pretty violent feedback in the steering wheel. It starts going away by 80 mph. Does anybody have any idea where I should start countering this issue at?

Thanks

Brandon

P.S. tires are at 50% tread wear

feifel

iTrader: (3)

Probably the tires had similar problem with my wrangler sr-a s

AMMO

I'm taking it in on Wednesday so hopefully they can figure it out... Only have 3 weeks of warrantee left.

mawk

I had a similar situation (between 45-52MPH) and it ended up being a bad coil on plug. Had no check engine light, no idling issues, just that stumble that vibrated the engine/cab/steering wheel.

Just a thought.

AMMO

All,
Thanks for the responses so far...have an update with more "symptoms." I took a 120 mile trip this weekend and have noticed the vibration is intermittent. Seems more prevalent when i hit the brakes at speed.

Thanks

Brandon

feifel

iTrader: (3)

I would check for warped rotors that would be my starting point

willywonka

Had the same issue...2 coils!! Actually, my happened at the same speeds as yours as well.

AMMO

How did they figure out the coils were bad? Hooked it up to the computer I am assuming? Thanks for all of the imput!

MPDG11

when it starts shaking, pop it into "N" but try to maintain the same vehice speed. If the shaking continues it's a "vehicle speed" related vibration. Wheels/Tires/driveline. Ford dealers have a cool tool to help diag vibrations.

If the vibration goes away as soon as you pop it out of gear, it maybe an "engine speed" related vibration. Downshift into the next lower gear but maintain the same RPM as when it "vibrates" if the vibration is there, it could be a mssfire or engine accessory vibration.

AMMO

Thanks for all the replies...truck went into the shop today and had tires balanced and rotated, also had rotors resurfaced. I was only on the highway for a few miles but it seems that the problem is resolved.

Thanks everybody

-Brandon