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in agreement with the death wobble. It might have somthing to do with the new front suspension, as it is similar to the dodge hd 4x4 and they experence the death wobble somtimes, especially with bigger tires. The only thing i have read that cures it is different caster/camber/alignment specs and somtimes A good balancing job.
I know in the earlier fords they had the "C" bushing that the radius arms wrapped around to hold the front axle in place. I have not looked real close on the 05s but I would be willing to bet that the "C" bushing is there. It may be too soon in the productions for aftermarket poly bushing to be avaliable but they are far superior to the factory rubber ones that Ford used on the earlier model trucks. You may want to do some searching on them to see if anyone is working on the aftermarket parts.
I work for a company that has recently added several 05 F250 SD 4x4 Super Cab Short Bed trucks to the fleet. We have started experiencing a problem with the front ends that causes anything from a shimmy to a violent, out-of-control, whole vehicle shaking that can only be stopped by a drastic and rapid reduction in speed. We have had the trucks into three different dealers and steering dampers and other various front end parts have been changed with no real positive results. Anybody out there experiencing anything like this and if so, what has been done to eliminate it.
Hi I’m new to the Ford Truck Enthusiasts board and just ordered a new 2005 F250 SD PS CC SB 4X4. I have been driving a ’95 F350 PS CC LB 4X4 for years and am looking forward to the much improved ride of the ’05. The condition you are experiencing is often referred to in the Offroad community as the dreaded “Death Wobbles” and can be very violent, as you know. Having owned perhaps 100 different 4X4’s over the years, I have experienced the DW’s in many different vehicles including early Bronco’s, Chevy Blazers, several trucks and even a VW Bug. Generally DW’s occur just after hitting a bump, typically on just one side of the front axle, and cause violent shaking and steering wheel feedback as the wheels actually flutter back and forth from side to side. About the only way to stop the DW’s is to get on the brakes hard or turn quickly, neither of which are very safe at times. My experience is that it has nothing to do with wheel balance, and everything to do with wheel alignment and worn steering components. If it were wheel/tire balance, the out of balance condition would be felt under other conditions and at different speeds. What I believe is happening is that one wheel/tire is bumped into a different steering plane than the other, stressing the steering components (worn parts accentuate this), and as the other wheel tries to catch up with it, the self-centering characteristics of the front-end come into play, and the wheels can’t “decide” what plane to be in. Loose tie rod ends, ball joints and steering boxes can be the culprit. Alignment is the major factor though, as DW’s can happen on a new vehicle. Improper tow adjustment can get thing started as the wheels are already fighting each other as to direction. Once tow is in check, caster has to be looked at. Caster is the angle of the steering axis as viewed from the side of the truck. Caster is what causes the wheels to want to come back to center. I believe that if everything else is in check that not enough caster is the problem, and I don’t mean less than the factory spec which may not be enough. See if they can adjust in more caster than the factory spec, which I bet will solve your problem. By the way, overloading the back of the truck will add to the problem. As the rear drops it has a negative effect on caster. Also changing the weight balance, front to rear, making the front lighter reduces the ability of the front wheels to self-center. It is the weight of the vehicle pushing down on the caster angle that makes the wheels want to come back to center. Less weight, less self-centering if that make sense? For that matter, I hope this all makes some sense. I’ll be egger to hear how your problem is solved.
P.s. I hate having to wait 6 weeks for this new truck to come in.
I have 4500 miles on my 05 and no problems. BF Goodrich tires from the factory. After reading several of these posts, it sounds like tires may be the problem. Several years ago I had bad vibration problems after putting a new set of tires on a 1969 Bronco. The tire shop assured me they were perfectly balanced. I even witnessed how well the dynamic balance was done. Problem turned out to be the tires were not round and the tire shop replaced them with another brand. You can get a perfect balance on a square tire but the ride would be very bad.
Wow does this bring back memories! My 73 Ford half-ton truck had this problem from the day I bought it (new). You are right, it can be very scary!
It would start when you hit a bump or something in the road and, depending on your speed could break into a full oscillation that would cause you to have to come to a complete stop to end.
This concerns me because I just bought a brand new 05 PSD FX4 CC. I only have 200 miles on it and haven't noticed anything yet.
First of all, thanks for all the input, this really is shedding some light on what the root cause may be. Now for the latest from the shop: They have installed the new adjusters and aligned the truck to a different spec than original (still don't know exact numbers), with no noticable improvement. This work being done under warranty and by an authorized Ford service center makes it kind of hard for them to do anything other than what they can get authorized to do through Ford's Hotline. We are pretty much at their mercy as far as what they decide to do. Does anybody have any suggestions as to how to get a more direct response from Ford Engineering?
Wow does this bring back memories! My 73 Ford half-ton truck had this problem from the day I bought it (new). You are right, it can be very scary!
It would start when you hit a bump or something in the road and, depending on your speed could break into a full oscillation that would cause you to have to come to a complete stop to end...
When I was a kid I had a summer job where they owned 2, 1973 F-250 4x4s. It used to scare the bijeesus out of me when this would happen. The owner would just shrug his shoulders and say, "it's a Ford." But I know what you're talking about; you'd hit a bump and that whole truck would shake like mad till you brought it to a complete stop. Let's hope this is an isolated case.
I would file a report with the National Highway Traffic Safety Board (NHTSB) They have the authority to investigate and order a recall if they become convinced that there is a built in safety defect. I have a 2005 F250 SC psd short box 4x4 and with 5500 mi have not seen an uncontrollable shake . I can feel a back and forth shake in the steering crossing railway tracks but I don,t consider it nearly dangerous.
I always assumed it had something to do with the infamous Twin I beam arrangement because when they finially got away from using it, the problem went away.
I don't belive the I-beam to be the problem. The trucks I was refering to all the solid front axle, with coil spring setups. I firmly belive that if you look hard enough you will find that one or more of the hard ware componants are not meeting their torque specs or had pre-mature wear. Just my .02 cents.
All I am saying is that this problem has been around in the Ford trucks for over 30 years now. Many folks have tried all kinds of fixes and I know there are some very intelligent users here as well. But in my own trials it has almost always boilded down to steering hardware in some shape and fashion if it is the true "Death Wobble". It may be just one part having issues or it could be a combination of several factors but I can almost guarentee that one of the steering parts is contributing.
its those wonderful a.t. continental tires. i know a guy with an 05 that all 4 tires were out of round and ford replaced the tires. i,m still arguing with ford over my all terain/allseason tires. had my truck 1 week. i want a.t. tires or my money back for the option.
I don't see how the tires (alone) can cause this problem. If the tires are out of balance, out of round or have flat spots, you can tell that right away. And it doesn't cause DW when you hit a bump. I've owned many vehicles over the years with tires that had all of these problems and it never caused DW.
If anyone thinks it's the tires are causing this, please post a techinical explanation of how this happens. Thanks, Diesel Man