Freeway speed shake
Thread Starter
|
Senior User
Joined: Feb 2006
Posts: 335
Likes: 0
From: in my house
Freeway speed shake
I have searched and searched and searched, but have yet to find the same set of circumstances.
I hardly ever run on the freeway, and last weekend I tried. From 68 to 85 my truck tries to shake the cab off. Hmm.
In the past week I have done the following:
Rear drive shaft ujoints
New carrier bearing
Shimmed carrier bearing support
Rotated tires
Balanced tires
I still have the shake. Seats, mirrors, dash, all shake, but nothing thru column.
I also have a suspension hop now, but that was probly there before, just never noticed, and it is more than likely shocks.
I have been hearing a squeak sound as I back out of the driveway in the morning and the chassis flexes, and when I pull into shop and flex occurs. The squeak sounds like it is behind me, and does not get louder as I try to listen with my head hanging out of the truck.
Could it be a loose body bolt? I am going to retorque the cab bolts tonite after work and check the bushings.
If it is loose body mount bolts, could that cause my freeway shake?
Any ideas will be appreciated, I am out of hair to pull out.
I hardly ever run on the freeway, and last weekend I tried. From 68 to 85 my truck tries to shake the cab off. Hmm.
In the past week I have done the following:
Rear drive shaft ujoints
New carrier bearing
Shimmed carrier bearing support
Rotated tires
Balanced tires
I still have the shake. Seats, mirrors, dash, all shake, but nothing thru column.
I also have a suspension hop now, but that was probly there before, just never noticed, and it is more than likely shocks.
I have been hearing a squeak sound as I back out of the driveway in the morning and the chassis flexes, and when I pull into shop and flex occurs. The squeak sounds like it is behind me, and does not get louder as I try to listen with my head hanging out of the truck.
Could it be a loose body bolt? I am going to retorque the cab bolts tonite after work and check the bushings.
If it is loose body mount bolts, could that cause my freeway shake?
Any ideas will be appreciated, I am out of hair to pull out.
Thread Starter
|
Senior User
Joined: Feb 2006
Posts: 335
Likes: 0
From: in my house
Hmm, maybe, the front lh mount being so loose that it almost fell off in my hand, was it. I couldnt take it anymore and ran out and checked the mount bolts while I am "working", and found that one.
Lh rear was about a turn and a half loose as well, but no where near as bad as the front one.
I really hope that is it, I got it running great, now I gotta get this figured out.
Lh rear was about a turn and a half loose as well, but no where near as bad as the front one.
I really hope that is it, I got it running great, now I gotta get this figured out.
Thread Starter
|
Senior User
Joined: Feb 2006
Posts: 335
Likes: 0
From: in my house
Update:
Tightened body mount, that stopped the odd noises and the hop.
Freeway shake is still there.
Tires have been to 3 tire shops, for balance and check. Never explicitly asked about belt separation, but wouldnt the tire have a bulge or something?
But, the weird thing is, it doesnt always shake. on cruise on the freeway, the shake starts, fades out, and fades back in. Over, over, and over again. It is cyclical. Maybe that will help someone with more experience help me figure it out, because I have exhausted what I know on the subject.
I am going to throw my 351M I have waiting to go into my sons truck in the back of the truck today to see if that helps some.
Again, thank you for any help that can be offered.
Tightened body mount, that stopped the odd noises and the hop.
Freeway shake is still there.
Tires have been to 3 tire shops, for balance and check. Never explicitly asked about belt separation, but wouldnt the tire have a bulge or something?
But, the weird thing is, it doesnt always shake. on cruise on the freeway, the shake starts, fades out, and fades back in. Over, over, and over again. It is cyclical. Maybe that will help someone with more experience help me figure it out, because I have exhausted what I know on the subject.
I am going to throw my 351M I have waiting to go into my sons truck in the back of the truck today to see if that helps some.
Again, thank you for any help that can be offered.
Cargo Master
Joined: Oct 2012
Posts: 2,333
Likes: 35
From: South Carolina
Trending Topics
Thread Starter
|
Senior User
Joined: Feb 2006
Posts: 335
Likes: 0
From: in my house
No cupping, no chopping, no uneven wear.
If I had the money, I would buy another set of tires and rims for winter, but I dont.
Is there any way I can have the tires for checked for belt separation?
If I had the money, I would buy another set of tires and rims for winter, but I dont.
Is there any way I can have the tires for checked for belt separation?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread
Thread Starter
Forum
Replies
Last Post
Shattered
1999 - 2003 7.3L Power Stroke Diesel
7
Sep 20, 2017 04:17 PM
spdmpo
1999 - 2003 7.3L Power Stroke Diesel
18
Jul 28, 2009 04:46 PM