Whats causing the Shaking/Vibration?

Tiny
BUDDLY
  • MEMBER
  • 2005 FORD F-150
  • 50,000 MILES
The truck starts violently shaking and vibrating after about 1-2 hours of driving. I recently had front end work done after an accident, and had the transmission re-built. I have had 3 mechanics look at it and they don't know what the problem is(and of course they don't have enough time to drive it for an hour).

-It continues to shake at any speed, and it doesn't matter if I am coasting, accelerating, braking, it vibrates consistently.
-It does seem to stop shaking when I am at a complete stop (idle), and if I shut the truck off and wait for a while it returns to normal.
-I have had the front end checked over (wheels, tires, suspension, tie rod, shocks, etc.) No issues there.
-I checked the drive shaft and u-joints.
-I don't get any kind of check engine light or anything on the dash.

Please help me :)

PS: I tried to donate but when re-directed, PayPal had a problem finding the site so I could not complete.

Thanks everyone!

-Justin

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Saturday, January 7th, 2012 AT 10:02 PM

1 Reply

Tiny
DRCRANKNWRENCH
  • MEMBER
Check the motor mounts as they might be failing and get worse when they get hot from movement. There is one on the transmission to check as well. Also check all the front and reart busings for damage and especially check the front subframe mounts and bushings. Converting to al Poly=eurethane busings is pretty cheap as complere kits are a couple hundred bucks, but it takes a long time to put them all in. But it will cover every motor, tranny, suspension and frame mount and power steering mounts on the truck. The truckl will handle better and the ride is not that much more harsh. If you get them get them Black in color as opposed to red as the Black ones have Graphite in them and will not sqeak as the reds ones will. Try Summitracing. Com for a source. You might have to nuy a few things you need that are not included in some kits. You musy make sure you get the most complete kit by calling the manufacturer.
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Saturday, January 7th, 2012 AT 11:25 PM

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