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03 F250 With Random Vibration/noise Felt Through The Floor


Pete M
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specs on the truck:

03 250 superduty/5.4/auto/4wd/250k miles/A-C/bone stock extended cab/rust free

 

my buddy's truck emits an odd vibration at random intervals and for random lengths of time while driving down the road. it kinda reminds me of when something is rubbing against the tire tread (like brushing a fender when turning). It always feels the exact same in loudness and frequency no matter if he's doing 25 or 75. Sometimes it lasts for a few seconds, other times it goes on much longer. The vibration is felt the strongest in the floor, and he cannot feel it at all in the steering wheel. sounds like it's coming from the front suspension or low in the engine bay, but nothing appears out of place or damaged. The bearings/suspension/steering all seem in great shape. It makes the noise whether the truck is in 2wd, 2wd with the hubs locked, or 4wd with the hubs unlocked.

 

It's a real head scratcher. frown.gif I've been searching the web but have come up empty (found plenty of people with noises and vibration issues on their Supers, but nothing quite like this).

 

spring pads and exhaust have been suggested but they all look good.

 

thoughts? ideas of what to check next?

party0005.gif

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Just a thought, but like the YJ, those have leafs as well as a track bar, no bueno. Leafs only flex straight up and down while the track bar swings in an arc. Check the track bar mounts, could be cracked and loose or something.

 

I've spent a lot of time under my neighbors 02' F250. His biggest problem is keeping oil in the sterling 10.5, we've done rear seals 3 times and the front unit bearings.

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motor mounts, trans mount, shock and track bar bushings look good, but the sway bar link bushings are shot and/or missing. :eek: Don't know if that's the cause of the noise yet, but it's certainly something that needs to be fixed. :yes:

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