Very Frustrated...Vibration Need help - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 11-10-2011, 03:57 PM Thread Starter
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Very Frustrated...Vibration Need help

Hello,
I have searched and searched for a solution and haven't had any luck. I'm getting a vibration in the steering wheel around 30-35 mph and then a major vibration at 40 mph. It goes away if I let off of the gas or put car in neutral. What I have done and had no success:

Changed:
U joints
carrier bearing
balanced driveshaft

I'm tired of spending money and not gettting anywhere. Anyone have any suggestions? I have a 1800 mile trip coming up in a few days and I;m clueless.

-Matt

1999 F450
2x4

Last edited by yobie; 11-10-2011 at 04:50 PM.
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post #2 of 9 Old 11-11-2011, 08:33 PM
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My first thought is to have the front tires balanced.
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post #3 of 9 Old 11-11-2011, 11:38 PM
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i thought i saw somewhere about the power steering pump being the culprit....

hello, my name is gary
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post #4 of 9 Old 11-13-2011, 05:25 AM Thread Starter
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I will check into the power steering pump. Could it also be torque converter related. Also its not a tire issue
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post #5 of 9 Old 11-13-2011, 06:14 AM
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Sounds like someone didn't balance the drive shaft properly. If it goes away after you let off the gas or put it in neutral, its not the tires.


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post #6 of 9 Old 11-13-2011, 07:21 AM
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Could be a host of things, and this one may seem far fetched, but I have had it happen. Check your bearings on the rear axle.
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post #7 of 9 Old 11-17-2011, 04:14 AM
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I feel your frustration.

I have been chasing the same ghost for a while. In addition to your list I have gone through Brakes rotors and calipers, replaced both front auto hubs with manual, both front hub bearings or needle bearings, Tires.

I also thought rear axel bearings, but a friend suggested that if those were going there would be other signs such as leaks to tell, and that the problem would have gotten a lot worse with the miles I have put on it. I had the rear diff cover removed and drained just to check.

My vibration is around 35-40 and then 65-70. Mine is now also accompanied by a sound that is like a dragging break sound,that was the reason for all the brake work. I can not tell where it is comming from. I also notice a slight almost shutter when the truck shifts from second to third. So if its transmition I just have to wait till something goes.

The last suggestion I got from someone is the pinion bearing. I have not had that checked yet.

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post #8 of 9 Old 12-12-2011, 08:21 PM
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If you still havent had any luck check the seals that get pressed onto the front spindles. I had the same problem for the longest time and that fixed it. Even with new manual hubs my front axle still had the vibration until i replaced the spindle seals.

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post #9 of 9 Old 12-13-2011, 05:21 PM Thread Starter
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Quote:
Originally Posted by Relytt58 View Post
If you still havent had any luck check the seals that get pressed onto the front spindles. I had the same problem for the longest time and that fixed it. Even with new manual hubs my front axle still had the vibration until i replaced the spindle seals.
how do you know if they are bad or go about checking them? thanks for the imput im still having this issue
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