Bad shakeing while accelerating - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ General Discussion Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 11-13-2013, 06:58 AM   #1
BrokenYJ...'s Avatar
Join Date: Nov 2013
Posts: 91
Bad shakeing while accelerating

Hey guys, I got a 91 YJ Wrangler and it is acting up. When accelerating somewhere around 30mph and on the whole car starts to shake and vibrate. Now when I let of the throttle it stops the shaking and coasts with no problem. What could it possibly be? I feel like it is something inside the driveline. Maybe transfer case. And is it safe to drive? Any ideas?
BrokenYJ... is offline   Quote
Old 11-13-2013, 07:03 AM   #2
jughead2.5's Avatar
Join Date: Oct 2012
Posts: 21
Did you check the universal joints? That's where'd I'd start had a dodge Dakota that would be fine then about 35mph it would shake so bad I'd bounce around on the seat.

jughead2.5 is offline   Quote
Old 11-13-2013, 07:09 AM   #3
BrokenYJ...'s Avatar
Join Date: Nov 2013
Posts: 91
What is the universal joint exactly
BrokenYJ... is offline   Quote
Old 11-13-2013, 07:18 AM   #4
jughead2.5's Avatar
Join Date: Oct 2012
Posts: 21
On your rear driveshaft there are 2 of them they look like an "+" and it's the point on each side of the shaft where it pivots.

Name:  image-2568521312.jpg
Views: 187
Size:  17.9 KB
jughead2.5 is offline   Quote
Old 11-13-2013, 07:18 AM   #5
DF Jeep's Avatar
Join Date: Apr 2013
Location: Southern New Hampshire
Posts: 202
U -Joint in the drive axle is the first place to start.
Defend New Hampshire
Live Free or Die
DF Jeep is offline   Quote
Old 12-02-2013, 10:02 AM   #6
Join Date: Dec 2013
Posts: 9
U-joints/driveshaft damage
Broken engine/trans mounts

Auto or Manual transmission?
95YJMD is offline   Quote
Old 12-02-2013, 09:40 PM   #7
OregonPlinker's Avatar
Join Date: Dec 2012
Location: Creswell, OR.
Posts: 878
91 Laredo, 4.0ho, TF999, Magnaflow exhaust, Yukon rear axles, Spartan Lockers, Posi locker, 3.5 inch springs, 1"MML, 1"BL, 1"shackles, trimmed fenders, raised flares, 35x13.50s.
OregonPlinker is offline   Quote
Old 12-02-2013, 10:29 PM   #8
Unit 313's Avatar
Join Date: May 2013
Posts: 143
My buddy has a ford explorer that had the same symptoms. His driveshaft was shaking around due to broken bolts. Check around underneath to see if everything's in shape.
Unit 313 is offline   Quote
Old 12-03-2013, 06:20 AM   #9
graff's Avatar
Join Date: Oct 2013
Location: Maine
Posts: 3
I had this problem about a month ago, checked the u-joint and was all good, was checking the oil at a gas station and noticed one of the spark plug wires had come off, plugged it back in and no more shaking.
graff is offline   Quote
Old 12-06-2013, 07:36 AM   #10
bruceandjo95yj's Avatar
Join Date: Oct 2011
Location: London,Ont
Posts: 227
I just fixed this same problem..I thought it was a bad ujoint...turns out it was just a loose strap bolt..
threw some lock tite on it,torqued it back down along with rest of the more shaking..

My slow and low budget resto
bruceandjo95yj is offline   Quote

Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 04:41 PM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC