Hello Everyone,
New to Forum here, just bought a used 2013 F250 6.7 4WD, 29000mi. I love it, but it's driving me nuts with this highway speed vibration.

The dealer has rebalanced the tires twice, and a tire shop did the Road Force Balance. Still there, mostly on smooth black asphalt out west. I-15 from Salt Lake to Los Angeles, EMPTY.

Dealer says its cause it's empty, its the way it rides. Suggested I put a few hundred pounds in it and it will go away. I tried that, after the road force balance.... it's still there.

Just drove home in the rain and fog, vibrating and shimmy added to my stress.

I've heard of the Death Wobble, but this is a 2013. I'm thinking it's the Kelly 265/70/17s?
Any one have this problem before?

Any help for a new guy is appreciated.

FJ

 

Well it's definitely not normal. I'm no mechanic but I'm a repeat owner of Ford Super Duties, and your 2013 should ride like silk albeit the stiff suspension should be a bit bumpy. If your rig isn't swerving when you take your hands off the wheel (needs alignment) then I would consider faulty engine mounts or driveshaft out of balance. I'm lifted w/ oversize tires and it drives straight, true, and no shimmy at 90mph. Not familiar with the "Road Force Balance"... what is it?

 

It's something a bit more than the regular balance. The tire guys told me they could tell if something was out of round, a rim or tire. That's about all I got from it.

I'll run to the dealer again on monday, I was hoping it was just a bad set of Kelly Tires? But if it's something more serious like motor mounts, or driveline balance problems it sounds like I'll be there awhile.

I'll have the main service guy go for a ride again, then maybe we can test drive a 2014 to compare.

FJ

 

it may also be the ply of your tires. i know ive had a couple sets of tires that were low ply around 4 or 6 and started to vibrate/ wobble at 55-60