vibration @ 65 plus
Thread Starter
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is a BAAAD MAN
Joined: Apr 2005
Posts: 3,738
Likes: 5
From: Winston Salem NC
vibration @ 65 plus
Got a weird vibration around 65 and up on my Excursion. New ball joints, shocks, tires(Had them balanced 3 times but still haven't ruled them out) Had driveshaft checked by a really good local driveshaft shop, rear end oil changed and shows no signs of any problems. Also new front rotors.
Worse when the camper is on there, dude at the tire shop said everything looks good and blamed it on the driveshaft which I told him already checked out.
What else? Tires are almost a year old but still look new, don't wanna ink up on new ones doubt tire shop would help.
Worse when the camper is on there, dude at the tire shop said everything looks good and blamed it on the driveshaft which I told him already checked out.
What else? Tires are almost a year old but still look new, don't wanna ink up on new ones doubt tire shop would help.
Thread Starter
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is a BAAAD MAN
Joined: Apr 2005
Posts: 3,738
Likes: 5
From: Winston Salem NC
I don't think so, I Can kick it neutral and with no load on it doesn't change. Also I can rev it up in neutral and nothing else changes.
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Cargo Master
Joined: Apr 2010
Posts: 2,405
Likes: 4
Rotate the tires and see if the vibration changes at all. If it does, I'd blame the tires. Had it happen to me once on my wife's Expedition. I hunted a vibration on that truck for weeks. I was working with a reputable tire shop, so as soon as I told them the vibration changed after they rotated the tires, they replaced the suspect one. The "bad" tire showed no issues - balanced well, no funny wear, etc.
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Senior User
Joined: Jun 2003
Posts: 372
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From: Dayton, OH
Jmatthews,
This isn't a solution but I'm having a similar problem, Take a read at my post and see if it sounds familiar to what your experiencing.
https://www.ford-trucks.com/forums/1...odd-shake.html
This isn't a solution but I'm having a similar problem, Take a read at my post and see if it sounds familiar to what your experiencing.
https://www.ford-trucks.com/forums/1...odd-shake.html
Fleet Mechanic
Joined: Jul 2005
Posts: 1,800
Likes: 52
From: Southern Colorado
The tire could be oval, yet in still balance. Some tire shops can do road-force testing, where they check roundness that way. Try putting the spare tire on and driving it.
If the output bearing of your transmission (or xfer case, if 4WD) is loose/worn, that could be doing it. Grab the driveshaft where it connects and push it up/down to check for play. Put the truck in neutral first, apply the parking brake, and chock the wheels so that there is no turning force on the driveline when you do this test.
If the output bearing of your transmission (or xfer case, if 4WD) is loose/worn, that could be doing it. Grab the driveshaft where it connects and push it up/down to check for play. Put the truck in neutral first, apply the parking brake, and chock the wheels so that there is no turning force on the driveline when you do this test.
Thread Starter
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is a BAAAD MAN
Joined: Apr 2005
Posts: 3,738
Likes: 5
From: Winston Salem NC
It's not lifted and the driveshaft shop guy checked it out. I guess I'll try the road force balance there are a few paces that do that nearby.
Cargo Master
Joined: Feb 2010
Posts: 2,298
Likes: 94
From: Delta, CO
Good luck with it bud