Whining noise coming from front end at 30 MPH and up


njklife

New Member
Joined
Aug 2, 2021
Messages
6
Location
Arizona
So I have a 1998 Jeep wrangler Tj (170,000 miles), and I'm running into a issue after I bought it used. When I got back home, started it up and drove down the road the next morning, there was a higher pitched whine coming from what is sounds like the front end at 35-40mph and above. The pitch gets higher when speed is increased. It's definitely prominent. Seems that engine rpms have no effect on it. 4wd doesn't seem to effect it either. There was fluid in the front diff. It has a 4in lift. (Not sure if that helps any) Check for play in wheel hubs, seemed fine. Noise didn't change when braking suddenly, or turning sharply left and right. If there are any questions, please let me know. Any help would be great.


Here's a video of the problem
 
Last edited:

gt3jake

New Member
Joined
Oct 1, 2021
Messages
1
Location
Ohio
Well that certainly sounds exciting
So I have a 1998 Jeep wrangler Tj (170,000 miles), and I'm running into a issue after I bought it used. When I got back home, started it up and drove down the road the next morning, there was a higher pitched whine coming from what is sounds like the front end at 35-40mph and above. The pitch gets higher when speed is increased. It's definitely prominent. Seems that engine rpms have no effect on it. 4wd doesn't seem to effect it either. There was fluid in the front diff. It has a 4in lift. (Not sure if that helps any) Check for play in wheel hubs, seemed fine. Noise didn't change when braking suddenly, or turning sharply left and right. If there are any questions, please let me know. Any help would be great.


Here's a video of the problem
I've got the same exact noise. Did you find the issue?
 

thekevin

Member
Joined
May 18, 2020
Messages
73
Location
Branson, MO
Same, mine started about a month ago. It sounds like its coming from the front of my tranny but it doesn't change with engine rpm or even shifting to neutral while moving. Only actual speed makes a difference in pitch. Mine is a 4.0 42rle. Last year I changed the front diff fluid with Lucas and everything looked pretty good in there when I did it. I guess it's time to take the cover off and inspect again.
 

Fish Family JKU

New Member
Joined
Feb 3, 2021
Messages
23
Location
Livermore, CA
Mine just started doing this on my 08' JK. Very similar symptoms; only above 10mph, only when warn, acceleration/braking do not effect the noise, constant pitch regardless of speed.
I can't replicate the noise on jack stands. And nothing obvious I can see to date.
Draining the front diff tonight.