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Old 05-29-2008, 05:51 AM
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Exclamation Vibration at 45mph

I have this vibration at 45mph, It has been going on for a few months, 2 different dealers said it was the continetal tires, and once I replaced them the vibration would go away. I have now replaced the tires and I still have a vibration at 45. Does anyone have any ideas????
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Old 05-29-2008, 06:00 AM
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IS IT OLD? BALL JOINTS? I KNOW ON MINE THE ROTORS WERE WARPED, HAD THEM TURNED AND IT WAS SMOOTH AGAIN. GOOD LUCK
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Old 05-29-2008, 06:02 AM
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This is a "normal" condition for certain trucks with the tow package. There is a TSB concerning it. Mine does this exact same thing, but I haven't wanted to take the truck down to get it fixed...

Quote:
Vibration/Hop at 40-48 MPH, Truucks with Trailer Hitch:
Some 2005-07 F-Super Duty trucks with long wheel base (over 156") may exhibit what is described as a hop on smooth or coarse road surfaces. Although Ford conciders this to be characteristic of trucks with a GVW of over 8500 pouns, some drivers may be more sensitive to the condition. There is a damper kit (P/N 5C3Z-5D008-A) available to correct the hop under the described conditions. It will not correct shimmy, harsh ride or vibration after hitting bumps. TSB #07-5-11.
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Old 05-29-2008, 06:09 AM
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You might want to check your center bearing on your driveshaft. I pulled mine off and bolted it back square like I thought it should be, but it should actually be caulked a little bit. When mine was bolted in incorrectly it vibrated wicked bad.
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Old 05-29-2008, 06:23 AM
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RE Vibration

The truck is a '06 F250 6.0l CC KR SB FX4 it has 37700 miles. This Vibration has been occuring since 25000 miles.

Hope that helps.
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Old 06-28-2008, 06:19 AM
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when my '03 6.0 vibrated at 45 mph, it was a bad injector. i was only running on 7 cylinders.
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Old 06-28-2008, 06:57 AM
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same problem here

i have an 06' f250 lariat fx4 with 6" fabtech lift 35" tires on 20" wheels and i get the same vibration when im cruzin' at about 50-55mph.
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Old 06-28-2008, 07:03 AM
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Quote:
Originally Posted by rickncst View Post
i have an 06' f250 lariat fx4 with 6" fabtech lift 35" tires on 20" wheels and i get the same vibration when im cruzin' at about 50-55mph.
Rick,
Welcome to the ORG! Since you are lifted, yours is likely a carrier bearing shim problem.
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Old 06-28-2008, 07:57 AM
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My dad's truck began doing a "death wobble" whenever he hit around 45-50. It ended up being his traction bar.
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Old 06-28-2008, 10:10 AM
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thanx for the welcome

i just bought my truck about 3 mo. ago and ran into powerstroke.org. i've been reading the forums here since and i must say that the ppl here are really cool and seem extremely knowledgeable. this is my first diesel and full sized truck i've ever owned, and i must say i absolutely love it. i've had a 97' nissan hardbody for 11yrs and wanted to go all out cuz the wife and i would like to get a trailer in the near future. i don't have a clue on diesels but love reading the forums cuz thats how i learn. sorry for hyjacking and rambling. so how can i fix the vibration problem im having?
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