Roaring front end - JeepForum.com

 
LinkBack Thread Tools
post #1 of 4 Old 08-14-2009, 08:40 AM Thread Starter
vworley
Registered User
 
Join Date: Aug 2009
Location: Memphis
Posts: 2
Roaring front end

Well, I've got a roaring sound coming out of the front end. I've just finished replacing both CV joints, bearing hubs, rotors and pads. Still have the roar. It seems to clearly be "timed" with the wheel rotation, but I'm fairly sure it's not the tires. Any ideas? Could the gear box be low on oil or something similar.

Not a mechanic, but learning...

vworley is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 08-14-2009, 09:34 AM
99avant
Registered User
 
Join Date: May 2008
Location: Marquette, Michigan
Posts: 1,300
Does the noise change or go away when you are on or off the throttle? You may have a differential issue.
Check the fluid for correct level and make sure there is nothing foreign in there (water, metal flakes)
There are a few bearings in there that go bad with time and poor fluid maintenance.

|94 XJ|4.0|NP231|AW4|8.25 Trac Lock|Lotsa miles - SOLD
|99 WJ|4.7|242HD|Vari-lok|Upcountry+BB|DT8000|Dead as of 10/29/2009

If it aint broke, fix it till it is.
99avant is offline  
post #3 of 4 Old 08-14-2009, 09:37 AM Thread Starter
vworley
Registered User
 
Join Date: Aug 2009
Location: Memphis
Posts: 2
It does seem to change with throttle. How can I check the fluid level?
vworley is offline  
post #4 of 4 Old 08-14-2009, 09:43 AM
99avant
Registered User
 
Join Date: May 2008
Location: Marquette, Michigan
Posts: 1,300
There is a plug on the front cover, take it off. The fluid should be about to the level of the bottom of that hole.

If I were you I would drain it, inspect the fluid and fill it back up. Should be a pretty simple operation for you since you have done that other work. There are multiple write up threads around here if you want specifics on the process.

Another possibility is your front drive shaft. What are the specifics on your jeep? (fill out your profile so we can help you easier)

If your driveshaft looks like this:


That may be the issue. The rubber boots at the ends crack and the grease leaks out.

The driveshaft and a bearing in my front diff were causing a noise similar to what you are hearing.

|94 XJ|4.0|NP231|AW4|8.25 Trac Lock|Lotsa miles - SOLD
|99 WJ|4.7|242HD|Vari-lok|Upcountry+BB|DT8000|Dead as of 10/29/2009

If it aint broke, fix it till it is.
99avant is offline  
Reply

Quick Reply
Message:
Options

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

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









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
Roaring / Grinding sound coming from front ajnolin ZJ Grand Cherokee Forum 3 01-10-2010 11:08 AM
Could this cause roaring? PICS manofmany ZJ Grand Cherokee Forum 29 01-22-2009 07:15 PM
RE: Roaring Noise uncc09meet ZJ Grand Cherokee Forum 2 08-13-2007 03:08 PM
How much roaring is normal? uncc09meet ZJ Grand Cherokee Forum 17 08-03-2007 03:59 PM
Roaring!!!! man this is annoying... Reloader77724 ZJ Grand Cherokee Forum 23 08-01-2006 11:01 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