Bad vibrations
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Mountain Pass
Joined: Jun 2011
Posts: 166
Likes: 1
From: Las Vegas, Nv
Bad vibrations
Early 04 f three50 (kids thought it would be funny to take the three key off keyboard) with a bad vibration once over 60 mph. Thought it was carrier bearing which was worn but i still replaced it. The u-joints are tight. Not sure where to go next. It is a long bed but these arent normal vibrations. Tires are fine .
Senior User
Joined: Apr 2013
Posts: 142
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From: Shalimar, FL
Early 04 f three50 (kids thought it would be funny to take the three key off keyboard) with a bad vibration once over 60 mph. Thought it was carrier bearing which was worn but i still replaced it. The u-joints are tight. Not sure where to go next. It is a long bed but these arent normal vibrations. Tires are fine .
I understand that you said that the tires are good. Was there any recent work with mounting and balancing? If so, maybe one of your tire weights are slightly off. Does the vibration feel like it could be the tires?
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Mountain Pass
Joined: Jun 2011
Posts: 166
Likes: 1
From: Las Vegas, Nv
None. The truck was off the road for a little bit due to bad 7 injector. I can take the truck to discount tire in morning but after that I dont know where else to look. I dont think it is the front hubs, that would be all the time vibrations
Posting Guru
Joined: Nov 2012
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Vibrations can be the hardest thing to find so many different things or combination of things can cause it as well as how little it takes to cause it.
Tires alone can be a deceptive cause. Differnt manufactuers;tread design;miss matched tires;differences in sidewall stiffness;even tonumber of rocks and there placement in the trie tread. Improper torque of the lug nuts or torque pattern right down to tire inflation.
Add in drive line;rotors;calipers;brakes and you begin to get the idea.
Tires alone can be a deceptive cause. Differnt manufactuers;tread design;miss matched tires;differences in sidewall stiffness;even tonumber of rocks and there placement in the trie tread. Improper torque of the lug nuts or torque pattern right down to tire inflation.
Add in drive line;rotors;calipers;brakes and you begin to get the idea.
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Mountain Pass
Joined: Jun 2011
Posts: 166
Likes: 1
From: Las Vegas, Nv
I feel it mostly in my seat. When i get the truck up to 70 it will bounce like im hit the whoops on a moto cross track. Since I dont feel it in the steering i didnt pay attention to the front end. I hear ya dannyboy....needle in the hay stack
More Turbo
Joined: May 2015
Posts: 670
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From: Nampa, ID
If it were my truck, I would take it to discount tire and have them check the balance on the tires. I would also check the rear shocks for oil underneath to see if the oil seals have failed. I used to have a 2001 f-150 that had the rear end get bouncy after a while. It would "bounce" just a little bit at highway speed, but I imagine it would have felt a lot worse if it had been a longbed. It turned out the rear shocks had no oil in them anymore, due to the seals failing.
Are the tires wearing evenly?
Are the tires wearing evenly?
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Lead Driver
Joined: Sep 2012
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From: Manteca,Ca
sorry after I posted I went to bed , all good advise thus far , in the seat , I would check Drive line for out of balance maybe it was dinged or twisted some how , when I was a kid I did this to my dads truck 
also take a look at your Calipers hanging up. if you have a gauge like scan Gauge monitor VGT maybe the turbo is starting to seize and throwing some vibration there too .
also take a look at your Calipers hanging up. if you have a gauge like scan Gauge monitor VGT maybe the turbo is starting to seize and throwing some vibration there too .
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Lead Driver
Joined: Sep 2012
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From: Manteca,Ca
forgot to ask 4x4 or 2x ? bearings, broke leaf spring, shocks, other vibration non since ( up pipe, tail pipe bracket, block heater plug this one was mine I felt the noise in the seat for some reason and it's located in the front bumper that little sucker vibrated all through the truck.
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Mountain Pass
Joined: Jun 2011
Posts: 166
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From: Las Vegas, Nv
4x4 Checked to make sure front axles werent locked and the transfer case wasn't engaged but all was fine. Will take laptop with AE and check vgt. The truck has power so not sure bout the turbo going. If the bearings were going wouldn't i feel it thru all speeds? Including turns? (assuming your talking wheel bearings?) Took truck for a drive again and at 80 it shakes the whole truck violently.
Postmaster
Joined: Jun 2014
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From: Oakhust NJ Jersey Shore
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Mountain Pass
Joined: Jun 2011
Posts: 166
Likes: 1
From: Las Vegas, Nv
Will check the shocks tomorrow and get back with the results. Just out of curiosity when I used AE yesterday there was a DTC for a solenoid in the tranny. Will have to check the p number again. Could something in the trans cause any issues like I am experiencing?
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