Vibration
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Joined: Jul 2005
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Vibration
I have a vibration starting at 50mph. I only feel it when on the gas between 50 and 65mph. 65 and above i feel it regardless. My X is completely stock. It's more of a humming or ressonating sound that you can hear or feel through the whole truck. The tires have been balanced with no change. Any suggestions?
2002 excursion 7.3 diesel
Mike
2002 excursion 7.3 diesel
Mike
Posting Guru
Joined: Oct 2003
Posts: 1,198
Likes: 2
From: Tulsa, OK
I have this same problem (vibration) at 65 - 72 mph. Low frequency drumming.
My pet theory is that it is the last u-joint on drive shaft. My thinking is that the pinion angle may be too shallow or steep and is causing resonant vibration in the u-joint area.
Anyone with similar?
My pet theory is that it is the last u-joint on drive shaft. My thinking is that the pinion angle may be too shallow or steep and is causing resonant vibration in the u-joint area.
Anyone with similar?
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Fleet Owner
Joined: Sep 2005
Posts: 28,609
Likes: 18
From: Lake Tahoe, Nevada
Originally Posted by Forest
I have this same problem (vibration) at 65 - 72 mph. Low frequency drumming.
My pet theory is that it is the last u-joint on drive shaft. My thinking is that the pinion angle may be too shallow or steep and is causing resonant vibration in the u-joint area.
Anyone with similar?
My pet theory is that it is the last u-joint on drive shaft. My thinking is that the pinion angle may be too shallow or steep and is causing resonant vibration in the u-joint area.
Anyone with similar?
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Mountain Pass
Joined: Sep 2003
Posts: 200
Likes: 8
From: Greenfield,In
Originally Posted by Forest
I have this same problem (vibration) at 65 - 72 mph. Low frequency drumming.
My pet theory is that it is the last u-joint on drive shaft. My thinking is that the pinion angle may be too shallow or steep and is causing resonant vibration in the u-joint area.
Anyone with similar?
My pet theory is that it is the last u-joint on drive shaft. My thinking is that the pinion angle may be too shallow or steep and is causing resonant vibration in the u-joint area.
Anyone with similar?
Vibration gone at least to 90 MPH - have gone faster.
Richard
Posting Guru
Joined: Oct 2003
Posts: 1,198
Likes: 2
From: Tulsa, OK
Originally Posted by Richard2212
Forest, I had this problem too. 2003 v10. Fixed by shimming the rear axle to lineup the rear u-joint. Also torqued wheel nuts to 155-165 ft lbs with a good torque wrench.
Vibration gone at least to 90 MPH - have gone faster.
Richard
Vibration gone at least to 90 MPH - have gone faster.
Richard
Mountain Pass
Joined: Sep 2003
Posts: 200
Likes: 8
From: Greenfield,In
I used some flat 1/8 inch steel I had in my shop. Two pieces per side.
This is an old subject - if you use the "seach" function you will find a lot in this Forum.
Need more - just ask. Edit my previous Post " HAVE'NT GONE FASTER."
This is an old subject - if you use the "seach" function you will find a lot in this Forum.
Need more - just ask. Edit my previous Post " HAVE'NT GONE FASTER."