Vibration/shudder - Off-Road Forums & Discussion Groups
Ford 67-96 F-Series, 78-96 Bronco All discussions of 67-96 F-Series Trucks and 78-96 Broncos

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 12-14-2002, 09:24 PM
Posts: n/a

Been lurking in the background but now I have a question/problem. 1996 Bronco 351W E4OD, when disengageing cruise control from about 75 mph, there is a hard shudder or vibration from the drive train after about 1/2 to 1 second. It feels like I have drifted off the shoulder of the interstate and hit the "wake-up" grooves. This only happens when I turn the cruise off, not when I step on the brake. Any help will be greatly appreciated.

Sponsored Links
post #2 of (permalink) Old 12-15-2002, 08:13 PM
Join Date: Oct 2001
Posts: 2,508
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Vibration/shudder

I think a bit more info. is needed.

It only happens when you take cruise off above 75? You never feel this any other time?

When did it start?

Have you or someone been doing any recent work on the vehicle?

TheJuice is offline  
post #3 of (permalink) Old 12-15-2002, 08:28 PM
Posts: n/a
Re: Vibration/shudder

Doesn't seem to happen at any other time and has only started the past couple of days. The only work that has been done is auto hubs replaced with Warn Premiums. The Bronco has 129*** on it. Everything has been lubed to the best of my knowledge.
Sponsored Links
post #4 of (permalink) Old 12-16-2002, 03:15 AM
Mud in my Veins
muddybronco's Avatar
Join Date: Oct 1999
Location: woooooo pig sooooooie!
Posts: 6,842
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Vibration/shudder

the only thing i can think of is the torque convertor lockup clutch. FORD has a ton of TSBs on convertor shudder, which could be what's happening as the convertor locks up as the engine revs drop after turning off the cruise. the convertor lockup automatically disengages when you hit the brakes, so that could explain why it only happens when you manually turn off the cruise. if you tap the brake quickly as it starts to vibrate, and it stops, it's gotta be that convertor. a long term fix would be to rebuild the tranny and replace the convertor, but if it bothers you enough you could cut the lockup wire or wire a switch into it so you have better control of lockup. also, <a href=>Autotrans Inc</a> and Baumann have a couple products that are supposed to cure this problem.
muddybronco is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome