Bad vibration need help!! - Ford Powerstroke Diesel Forum

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post #1 of 12 Old 08-13-2009, 04:07 PM Thread Starter
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Bad vibration need help!!

I have a 97 f350 reg cab that has a bad shimmy/vibration when i reach 65-70 mph. I have recently had my tires balanced, front end alignment, rear drive shaft balanced and new u-joint on the rear of the drive shaft. The front u-joint on the drive shaft was replaced about 3months ago. I do not know where to look next. The vibration is pretty bad and it is uncomfortable to be doing 65+ mph on the highway. Any help would be greatly appreciated. Thanks

1997 F350 xlt Power stroke diesel
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post #2 of 12 Old 08-14-2009, 01:05 PM
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If you can feel it through the steering wheel ral bad you might want to check out the steering stabilizer.

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post #3 of 12 Old 08-24-2009, 01:06 PM Thread Starter
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Nope it doesn't come through the steering wheel. You can feel it coming right through the floor. Still have no idea any help would be appreciated.

1997 F350 xlt Power stroke diesel
Regular Cab Long Bed
TS performance chip
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post #4 of 12 Old 08-24-2009, 05:20 PM
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Broken motor mount?

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post #5 of 12 Old 08-24-2009, 05:21 PM
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Maybe bad shocks?

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Has a few goodies but going under the knife soon!

2003 F-250 Quad Cab 4wd Auto 6.0 SCT 4" Turbo Back
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post #6 of 12 Old 08-24-2009, 05:27 PM
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tie rod ends, drag link, wheel bearings.... there are alot of things on the front of that truck that can cause that. Even a 1/16th to an 1/8 of an inch of play in those joints ads up prety fast and can cause death wobble. Like he said check your steering stab... Is your truck lifted at all. 2wd or 4wd.... ??

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post #7 of 12 Old 08-24-2009, 07:25 PM
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I would move the tires around front to back back to front. It is something easy and may give you some light on your problem. I know you said the tires were just balanced, you have nothing to loose.
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post #8 of 12 Old 08-24-2009, 07:40 PM
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Bent axle? Slid or bumped into any curbs? Front wheel bearings?
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post #9 of 12 Old 08-26-2009, 07:33 AM
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I have a 2005 Excursion 6.0L. I started having death wobble from Aug 22nd, 2009. it was scary. very scary.

On Monday, 24th took it to the shop and replaced the Steering stabilizer which was shot. so went for test drive, it seems to be okay. on 25th in the morning hit a little bump for testing and here comes again the wobble. I went straight to the shop and put in the lift so i see a crack on the front passenger side bracket that connects the steering stabilizer and it's all the way to Axle/drivetrain. so i welded for temporaly until i find a new one or used one.

26th, So drove home and drove back to work. It seems like the wobbling is gone. Above you will see pics of what happened
after the wobbling.
Bottom piece that is called the damper(steering stabilizer) was shot and replaced to new one. Other forums are saying that can cause the DEATH WOBBLE!

p.s. 1. upper and lower ball joints were replaced back in Feb/2008
2. tire pressure are all fine

I think this is not too common on FORD 250-350-excursion???

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Last edited by FIZZEx; 08-26-2009 at 07:36 AM.
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post #10 of 12 Old 08-26-2009, 07:45 AM
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welds are pretty strong, that should be good for quite a while shouldnt it?

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