Vibration from Stop

Reply Subscribe

Thread Tools

Search this Thread

May 23, 2007 | 05:56 AM

Madmaxz

Thread Starter

Senior User

Joined: Aug 2006

Posts: 122

Likes: 0

Vibration from Stop

I test drove an 02 f250 w/ 108k miles yesterday at take off there was a bad vibration when giving it gas from a stop. but after 30-40 mph it would go away. ive test drove 5-6 trucks in the last week this one feels like its down power too on the lowend takeoff almost like a miss but its not missing.. tranny slipping? TQ converter not locking up? after 40-50mph it pulls hard..

May 23, 2007 | 06:38 AM

skittlejr

Elder User

Joined: Nov 2005

Posts: 555

Likes: 0

From: Cincinnati OH

if you check in the 99-03 powerstroke or the heavy/super duty forum they would be able to help you better on this one. double check the name of this forum. if there is no vibration during idle i would get the whole drive line checked out. get under it and start shaking stuff around and see what ya find.

May 23, 2007 | 09:17 AM

Neal 97 250

Post Fiend

Joined: Mar 2007

Posts: 9,010

Likes: 5

From: Johnson City, TN.

May be a U joint but I doubt it since it doesn't vibrate while driving but worth checking. May also be trans problems. Other than that chec with the other forum they may know something I don't.

May 23, 2007 | 10:03 AM

tjbeggs

Post Fiend

Joined: Apr 2004

Posts: 12,835

Likes: 3

From: Silver Lake Dunes, MI

could also be a bad midship bearing. also many SD need to have the midship bearing shimmed down to get rid of a vibration that is common.

May 23, 2007 | 10:14 AM

Neal 97 250

Post Fiend

Joined: Mar 2007

Posts: 9,010

Likes: 5

From: Johnson City, TN.

Is the midship bearing the one half way down the driveshaft? If so good call Tim.

May 23, 2007 | 10:36 AM

tjbeggs

Post Fiend

Joined: Apr 2004

Posts: 12,835

Likes: 3

From: Silver Lake Dunes, MI

yes the midship bearing also called the carrier bearing is the bearing in the middle of long wheel base trucks.

May 23, 2007 | 10:41 AM

Neal 97 250

Post Fiend

Joined: Mar 2007

Posts: 9,010

Likes: 5

From: Johnson City, TN.

Carrier bearing... That is what I am used to hearing. Thanx for the clarification.

Trending Topics

My 1976 F-250

3.9k

263.6k
7.3 or/vs 6.7

27

947
Header tube temp question.

18

301
Another Crank no start -- sorry

29

568
This is prolly a 1 page thread at most

110.3k

6M

May 23, 2007 | 12:53 PM

miker67

Elder User

Joined: Oct 2004

Posts: 855

Likes: 5

Is the truck lifted? If it is, then I would definately look into shimming the carrier bearing. Rule of thumb is 1/4 inch shim for every 1" of lift. It doesn't have to be a full blown suspension lift either. I did an add a leaf helper spring for a guy one time that lifted his rear end almost 4 inches empty. Any more than 2 inches above stock is enough to throw the rear end out of whack.

If the truck is not lifted, I would check the u-joints, then the carrier, and if that doesn't reveal anything, look closely for abnormal tire wear. If a tire is off balance, it can cause wierd vibrations, check for missing wheel weights and what not.