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Discussion Starter #1
Vehicle is a 2013 CREW F-350 6.7 SRW 4X4 with 4400 miles on the odo. Last week I changed out my 18" 275/70R18 summers for my winters on steel rims - Michelin 265/70R17's.

Going up hill, I hit a small bump and the death wobble occurred. Really surprised me, but at the same time, it was a UFB-sigh. :doh:

Now, before I go back to the dealership again (don't ask), I need to check what else could be causing this issue? The new steel rims perhaps but they're O.E.? The tires? They're an OEM size for the XLT and they're Michelin's. Something else to check?

Ed
 

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Have someone turn the steering wheel back and forth while you look at each steering joint from the steering box to the tie rod ends. It will be noticeable if any joint has excess play in it. All it takes is one sloppy or loose joint to allow the Death Wobble to occur.
 

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I took my truck to the dealership and the couldn't find anything. Said they 'road tested' the truck but couldn't make it happen.

Is there a TSB for this?
 

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I have a 2011 6.7 FX4 crew cab and had the very same thing happen! This is NOT new to Ford trucks post leaf spring front ends, nor Dodge, nor Jeep. I have a 2" leveling kit with coil spacers and 4" rear block with Fox schocks. I got rid of the Michelin factory tires (very soft side wall) and put on Toyo AT II 295/65R20 on my factory rims-looks awesome!, I added an Icon pan rod track bar, put in new caster alignment shims to get up to 2 degrees positive caster, and then a new alignment. Running 60psi now cold and truck is awesome!

p.s. There is a tsb for this and the dealer looks at the tie rod bushings or something, yada yada but no fix! Mine were perfect so no fix to do. I already tried this route.

PM me if you want, we can discuss further before you spend any more time or money!
 

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I'm having the start of the death wobble in my 2013 f350 It doesn't happen enough to bring to the dealership and try to duplicate but it is unbelievable that a truck with 8,000 miles would behave this way.
 

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Some owners of certain F-Super Duty 250/350 4x4 vehicles have experienced severe steering and front wheel vibrations and oscillations after traveling over a bump or dip in the road. As a result of a study with NHTSA regarding shimmy, Ford sent a Customer Maintenance Reminder letter to owners back in March of 2009. In addition, Ford agreed to send reminder letter to owners. Although there is no service action required by the dealer, customers will be informed if after setting the tire pressures on their truck to the Ford specified levels, they believe the vehicle needs additional service, to contact their local Ford dealer. Letters will be mailed starting the week of 12/09/13 and may result in increased customer service inquiries.

on FMCDealer this morning.
 

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Had a 2012 f350 that was shaking all over the road, i tried everything, couldnt find it. I gave up ordered a 13, but a few days before i traded it in, i got the wobble, then a suden surge in the motor. Didnt say much about it since i was already buying a new one and was less then pleases with ford at the time. Couldnt believe it when my 13 was doing the same thing! Took it in immidiatly (2k) and they said the wobble was caused from the engine shuttering and shaking, making the whole truck shake vioenlty. they replaced the turbo and are hoping that fixed it, but i am only at 3700 miles now and not sure its is gone!
 

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Kyle T - Sounds like it might be turbo surge to me... This thread: http://www.powerstroke.org/forum/6-7-motor-problems/259227-engine-chugging-under-light-load.html

has some info about that, but I think there is much more to the story, so might be worth a little more research.

As far as the real death wobble...that's usually caused by improper caster angle. I'm not sure what the factory specs are on the new ford trucks, but if I were having that issue I'd check the alignment, check the caster and check the steering stabilizer for starters.
 

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Some owners of certain F-Super Duty 250/350 4x4 vehicles have experienced severe steering and front wheel vibrations and oscillations after traveling over a bump or dip in the road. As a result of a study with NHTSA regarding shimmy, Ford sent a Customer Maintenance Reminder letter to owners back in March of 2009. In addition, Ford agreed to send reminder letter to owners. Although there is no service action required by the dealer, customers will be informed if after setting the tire pressures on their truck to the Ford specified levels, they believe the vehicle needs additional service, to contact their local Ford dealer. Letters will be mailed starting the week of 12/09/13 and may result in increased customer service inquiries.

on FMCDealer this morning.
:agree: pump up your tires and retest
 

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did you ever get it fixed?
 

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Discussion Starter #11
did you ever get it fixed?
Sorry - been away from the forums. I took it into the Ford dealership again (three times total now) on this issue and apart from checking tire pressure etc, they were unable to reproduce, but I could reproduce it on demand and at the right conditions. At exactly 42MPH (~70kph), if I hit a small bump/dip accelerating lightly, death wobble.

After two months - the issue went away. Maybe it was the new tires, maybe it wasn't, but I'm waiting for it's return next winter. I haven't tried it in a while but will this weekend. I did not receive any notice in the mail on this issue, and I'm disappointed Ford dealerships seems to act stupid and surprised when you mention the word knowing it's a common issue. Especially on a 100.0% stock truck. :mad:

If it comes back again, this time I will video tape it and email it directly to my local TV station on how Ford is ignoring a common and dangerous issue. Let's see how that will get their attention.
 

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Camera and the local TV station will get it fixed real fast............
 

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I'm not saying this is your issue, but when my truck was shaking like you describe, it was an issue with turbo surge. My issue was between 40 and 42 mph in 6th gear, light acceleration...sounds like pretty similar conditions to me, and I could reproduce mine on demand too. My truck did it with about 4,000 miles on it until I changed the oil. I put 5w40 synthetic in at about 6500 miles and haven't had the problem since....19,000 miles now.

Next time it does it try backing out of the throttle and stepping on it again to get it to downshift to 5th gear. If it's turbo surge it will stop immediately when you take your foot off the throttle and will not start back up when the transmission downshifts and the engine revs up a few hundred RPM. If it's death wobble you'll have to step on the brake and slow down 10-15 mph to get it to stop.
 

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overly inflated tires are horrible for death wobble, but at 42mph it seems unlikely. Death wobbles in my experience are when your doing 65+MPH and hit a dip, and you wobble left and right, and cannot gain control of the vehicle until you slow down to around 50 mph. Puts the fear of death in ya. Fixed with alignment shims.
 

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I laughed at the title ," in a 2013, yes a 2013". Hahaha. Why are you surprised? it has the same suspension as all the super duties since they went to the coil spring trailing arm design. That was a long time ago I think 2006 or so, so to be surprised that it would be any different on a new truck is hilarious.
.Get a bd castor kit BD Power - Product: Cam Caster Adjuster Kit
Factory trucks usually have 1 deg of positive castor this kit will let you adjust up to about 3.5deg. But set it at 2.5-3deg and death wobble is gone.

 

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I have a 2011 6.7 FX4 crew cab and had the very same thing happen! This is NOT new to Ford trucks post leaf spring front ends, nor Dodge, nor Jeep. I have a 2" leveling kit with coil spacers and 4" rear block with Fox schocks. I got rid of the Michelin factory tires (very soft side wall) and put on Toyo AT II 295/65R20 on my factory rims-looks awesome!, I added an Icon pan rod track bar, put in new caster alignment shims to get up to 2 degrees positive caster, and then a new alignment. Running 60psi now cold and truck is awesome!

p.s. There is a tsb for this and the dealer looks at the tie rod bushings or something, yada yada but no fix! Mine were perfect so no fix to do. I already tried this route.

PM me if you want, we can discuss further before you spend any more time or money!
^^^^This post sounds right on!!!!
 

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List of what to do all over the internet. Usually the track or pan hard bar and bushing. If not any slop in the ball joints, tie rods, steering linkage, or tire issues can cause.

I have a new track bar and bushing, front shocks, steering stabilizer times 2, ball joints ok, steering linkage ok and still have it- I think it is the tires, inflation ok but at 50 k and others have had flex in the side wall cause it to happen, Anyway everything else is tight as a tick, positive caster at 2.0 not good now at 3.2, re rebalanced wheels and alignment. It may not be easy. Start at tires, then track bar then work it out.
 

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Discussion Starter #18
Just to provide an update on this - my main warranty is now expired and I only have the DW from time to time. If I stick the smaller sized OEM XLT rims and tires on, I can reproduce it with ease - and unfortunately it's not turbo surge - usually happens with my foot is actually off the throttle. It happens occurs going up a slight incline and if I hit a bump at 68-70kph - poof - death wobble.

It's almost the equivalent of hopping on one foot, blinking your right eye, and rubbing your tummy at the same time.

Right now it feels like :bdh:
 

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I know on two of our 07s, a 350 and worse it was on a f550, it was the ford bushing thats metal with rubber inside of that, then metal again, its $25~ from ford, we had replaced everything, shocks, stabilizer, end links etc... still did it but less violent. Changed that steering/traction bar link and was smooth as can be over bumps.
 

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Discussion Starter #20
Strange enough, a while back they replaced my traction bar link as it was showing 'worn'. Strange, my truck was only 2 years old and less than 20'000 miles on the odo when they did it. Right now I cannot reproduce the wobble - so perhaps that's the fix?
 
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