91 yj clunking noise at take off - JeepForum.com

LinkBack Thread Tools
post #1 of 4 Old 04-05-2010, 12:06 PM Thread Starter
Registered User
Join Date: Mar 2010
Location: vermont
Posts: 7
91 yj clunking noise at take off

I have a 91 yj and there has been a clunking noise when I start off in first. After the initial noise, I can put the clutch in and release it, and there is no noise. To hear the clunk again, I have to roll back or put it into reverse, and then back into first. Any Ideas? It sounds like it is coming from the tc or tranny. Not sure though. Just wondering if this puts up some red flags for anyone... would save me alot of time. Thanks much

arnelio2 is offline  
Sponsored Links
post #2 of 4 Old 04-05-2010, 12:17 PM
Registered User
1991 YJ Wrangler 
Join Date: Apr 2008
Location: Meridian
Posts: 2,563
Inspect the motor and tranny mount condition. First guess is a bad tranny mount along with the insulator stud (torque arm for the tranny mount). Usually if one is bad, then all are suspect. Meaning, if the tranny mount components are worn out, then likely the motor mounts are shot as well. Best to replace all as a set. If this is the case, replace the motor mounts first while leaving the tranny mount bolts to the skid loose. Then replace the tranny mounts and tighten once the skid is in place. This could also be caused by bad u-joints, track arm bushings, etc... Inspect all of the above. But with your description, the tranny mounts are my best guess.
idaholtby is offline  
post #3 of 4 Old 04-05-2010, 08:24 PM
Registered User
1993 YJ Wrangler 
Join Date: Apr 2008
Location: pittston
Posts: 9
i had the same problem.. tranny mount was shot so when taking off the tranny was twisting over and causing the drive shaft to be at an angle and the u-joint was hitting off the shield above the muffler
eaglesfan8105 is offline  
post #4 of 4 Old 04-05-2010, 11:35 PM
Registered User
1991 YJ Wrangler 
Join Date: Nov 2008
Location: Elizabethtown
Posts: 3,064
Check your u-joints in the rear driveshaft.



MJM Powder Coating
Elizabethtown Ky.

MJMPC is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
clunking noise? odoyle31313 TJ Wrangler Technical Forum 1 05-09-2009 10:06 AM
Clunking noise. Please Help! Gabagool YJ Wrangler Technical Forum 7 04-04-2009 06:44 PM
clunking noise. need help tuc TJ Wrangler Technical Forum 3 05-13-2008 11:35 AM
Need help with clunking noise!!!! krawler00 TJ Wrangler Technical Forum 1 01-29-2008 10:03 AM
Clunking Noise cygnus3978 TJ Wrangler Technical Forum 3 08-19-2003 09:18 PM

Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

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