Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

Vibration!!

Thread Tools
 
Search this Thread
 
Old Apr 30, 2007 | 05:19 PM
  #1  
walt1968's Avatar
walt1968
Thread Starter
|
Mountain Pass
20 Year Member
Joined: Mar 2003
Posts: 144
Likes: 0
From: LaFargeville, New York
Vibration!!

I am getting a bad vibration from about 45 down to 35. I can put it in neutral and coast or just let off and it does it. When at a constant speed, say at 40mph it feels like you are riding the rumble strips on the highway. I'm thinking tires, any way to test them?? Or are there any other ideas?
 
Reply
Old Apr 30, 2007 | 05:22 PM
  #2  
ForemanES's Avatar
ForemanES
Posting Guru
Joined: Apr 2004
Posts: 1,424
Likes: 0
From: AZ
But it doesnt do it under a load? I would bet its the carrier bearing on the driveshaft.
 
Reply
Old Apr 30, 2007 | 07:04 PM
  #3  
walt1968's Avatar
walt1968
Thread Starter
|
Mountain Pass
20 Year Member
Joined: Mar 2003
Posts: 144
Likes: 0
From: LaFargeville, New York
Originally Posted by ForemanES
But it doesnt do it under a load? I would bet its the carrier bearing on the driveshaft.
Just between those speeds, just got from under it and everything feels tight. I just aired up the tires for the summer, so I was thinking that it was the tires. I let air out and gave it another ride and it seemed better. What would be the deal if it is a tire? Broken belt or anything evident from looking at it?
 
Reply
Old Apr 30, 2007 | 07:07 PM
  #4  
ForemanES's Avatar
ForemanES
Posting Guru
Joined: Apr 2004
Posts: 1,424
Likes: 0
From: AZ
I have seen that also where a set of new tires cures a vibration. Dont know why but something is wrong with the tire itself.
 
Reply
Old May 1, 2007 | 12:08 AM
  #5  
Deesel Dad's Avatar
Deesel Dad
New User
Joined: Sep 2006
Posts: 13
Likes: 0
My vote is on a wheel out of balance. You've probably thrown one or more of the lead weights off of a wheel over time. This is a common issue when a vibration occurs in a narrow speed bandwidth...the larger the weight that's lost the bigger the vibration. It's balance time!
 
Reply
Old May 1, 2007 | 05:45 AM
  #6  
walt1968's Avatar
walt1968
Thread Starter
|
Mountain Pass
20 Year Member
Joined: Mar 2003
Posts: 144
Likes: 0
From: LaFargeville, New York
Originally Posted by Deesel Dad
My vote is on a wheel out of balance. You've probably thrown one or more of the lead weights off of a wheel over time. This is a common issue when a vibration occurs in a narrow speed bandwidth...the larger the weight that's lost the bigger the vibration. It's balance time!
Sounds good to me. Hope that is it. Thanks.
 
Reply
Old May 1, 2007 | 10:15 AM
  #7  
Talyn's Avatar
Talyn
Hotshot
20 Year Member
Community Favorite
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
There is a good chance on wheels in this case.

However, that sounds like carrier or pinion bearing.

Get the rear end up and check everything!!!!

It's probably a Ujoint honestly.
But i have a tough time checking them usually. Get all the load off the rear end, and then check the driveshaft.
People make the mistake of just checking while its on the ground in park. Put it in neutral and get the wheels up.

If you want a good check for your pinion, when the rear end is in the air and the tires are moveing, the pinnion shoudln't move in and out.
If it does. something is wrong.
 
Reply
Old May 1, 2007 | 10:26 AM
  #8  
skittlejr's Avatar
skittlejr
Elder User
Joined: Nov 2005
Posts: 555
Likes: 0
From: Cincinnati OH
when checking tire. run your hand accross the tread. does it feel even across. this can tell you if a belt is broken. dont mistake cupping for a broken belt. cupping is caused by bad shocks. cupping looks like you ground down the tread in a spot then moved around the tire a few inches and ground it down again. most likely it's out of balance. take it to a tire shop, shouldn't be more that 20 dollars to ballance all four. look at the rims inside and out, can you see a spot where a wheel weight used to be. maybe a dirty spot, discolored or rusted.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-1

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-2

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-3

Every 2026 Ford Engine Explained

 Brett Foote
story-4

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-5

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-6

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-7

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-8

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-9

Top 10 Ford Truck Tragedies

 Joe Kucinski
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pit_of_pity
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
17
Mar 24, 2011 04:50 PM
jjmaas
Excursion - King of SUVs
2
Jun 14, 2010 02:26 PM
tjames001
2004 - 2008 F150
4
Nov 8, 2009 05:02 PM
GMtoFord
1999 - 2016 Super Duty
6
Oct 14, 2005 01:08 PM




All times are GMT -5. The time now is 05:21 PM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE