post #1 of Old 09-08-2008, 09:12 PM Thread Starter
Mark100
Registered User
1995 YJ Wrangler 
 
Join Date: Nov 2007
Location: Sandy Hook, CT
Posts: 7
Whirring sound

I know I've read some good info on similar problems here, but I was hoping for advice if I can be as specific as possible. There is a roaring sound from the back of the Jeep when I go over about 25 mph. It's loudest at 45 mph and decreases at higher speeds. I can feel a slight vibration of it in the steering wheel, and if I take my foot off the gas, the sound and vibration go away. I've had the jeep for about a year and have drven it this way for about 14,000 miles, without much change. The fluid level in the differential is fine.

Any help?

Mark100 is offline  
post #2 of Old 09-08-2008, 09:15 PM
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,734
Have you inspected your U-joints?

Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline  
post #3 of Old 09-08-2008, 09:39 PM
pat8942
Registered User
 
pat8942's Avatar
1992 YJ Wrangler 
 
Join Date: Dec 2007
Location: Deming,New Mexico
Posts: 2,178
Yeah it's more than likely a bad u joint.
Pull the rear shaft and inspect the joints and if only one is bad replace both of them.
No point in doing half now and half later.
It might be a good idea to check the gear oil in your rear axle and make sure your pinion yoke isn't loose.
Quote:
Originally Posted by Mark100 View Post
I know I've read some good info on similar problems here, but I was hoping for advice if I can be as specific as possible. There is a roaring sound from the back of the Jeep when I go over about 25 mph. It's loudest at 45 mph and decreases at higher speeds. I can feel a slight vibration of it in the steering wheel, and if I take my foot off the gas, the sound and vibration go away. I've had the jeep for about a year and have drven it this way for about 14,000 miles, without much change. The fluid level in the differential is fine.

Any help?

All other things being equal, the simplest solution is the best.
Ich liebe meinen Jeep!
pat8942 is offline  
post #4 of Old 09-08-2008, 09:42 PM
ar4130
Registered User
1997 XJ Cherokee 
 
Join Date: Jun 2006
Location: Jersey
Posts: 631
Another vote for U-joints.
Pretty cheap and easy to do with basic tools.

1992 YJ -2.5 Old Man Emu lift, RC 1-1/4" Boom greasable shackles, JKS Discos, 1" Daystar BL, 33x12.5x15 BFG AT KO's mounted on 15x8 Cragar soft 8's, flush mounted tailights, SJFab front bumper, TKH Fab swingout tire carrier welded to a Dirtworx rear bumper, Tuffy stereo console, RC SS Extended brake lines, Home brew plate relocation bracket, Magnaflow Cat, Dynomax Cat back, No track bars front or rear
1997 XJ - 4.5 RC coils + extra OEM spring isolator(6.5" actual front), OME medium duty springs+OME extra leaf + Teraflex 1.5 shackles (6.5" actual in rear), OME Long travel shocks, OME SS, IRO Adj TB, IRO Adj LCA'S, IRO Adj Uppers, RC Control arm drop brackets, JKS Quicker Discos, SYE / XJ shaft, 33x12.5x15 BFG AT KO's on 15x8 Cragar soft 8's, RC SS extended Brake lines, Hella 500's
1996 ZJ - RE 2 inch BB w/shocks (rides like crap), OME SS, 31x10.5x15 General Grabber AT2's - SOLD
ar4130 is offline  
post #5 of Old 09-08-2008, 09:52 PM Thread Starter
Mark100
Registered User
1995 YJ Wrangler 
 
Join Date: Nov 2007
Location: Sandy Hook, CT
Posts: 7
Thanks for the advice. How would I know if a u-joint was bad?
Mark100 is offline  
Reply


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
Rhythmic Whirring sound coming from driveline Weeeee TJ Wrangler Technical Forum 5 07-20-2009 01:38 PM
4.0 whirring? SaharaWilly TJ Wrangler Technical Forum 6 12-02-2008 10:27 AM
Low 'Whirring' Sound after letting off gas pedal PSYCH0 JK Wrangler Technical Forum 10 06-17-2008 06:40 PM
whirring/grinding sound dcfeeiv TJ Wrangler Technical Forum 3 12-17-2007 08:49 AM
alternator making a whirring sound lastone YJ Wrangler Technical Forum 1 05-20-2004 10:32 PM

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 On
Refbacks are On

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