Strange Brake Noise
12-06-2016 | 12:02 PM
#16
Senior Member
Joined: Jul 2016
Posts: 651
Likes: 0
From: NC
Year: 1994
Model: Grand Cherokee
Engine: 4.0
12-06-2016 | 09:24 PM
#17
Thread Starter
Member
Joined: Sep 2012
Posts: 116
Likes: 2
From: Casper, WY
Year: 1998
Model: Cherokee
Engine: 4.0
Jumpalot, Does it ever make the noise when the vehicle is NOT moving? Or does it require the wheels to be rotating to produce the noise?
If it ever happens when the vehicle is NOT moving, then I would suspect something going on with the Brake Booster / Master Cylinder, which sits right in front of the driver on the other side of the firewall. Which could explain why you are getting noise throughout the cabin.
Typically, brake rotor/pad/etc noises are fairly local to the brakes, and don't resonate in the cabin all that much.
If it ONLY produces the noise when the wheels are still rotating, then I would think that something closer/connected to the axle is suspect. (pads, rotors, axle u-joints, control arms, driveshaft, probably in that order). Based on you stating that you get a lot of noise through the body of the vehicle.
If it ever happens when the vehicle is NOT moving, then I would suspect something going on with the Brake Booster / Master Cylinder, which sits right in front of the driver on the other side of the firewall. Which could explain why you are getting noise throughout the cabin.
Typically, brake rotor/pad/etc noises are fairly local to the brakes, and don't resonate in the cabin all that much.
If it ONLY produces the noise when the wheels are still rotating, then I would think that something closer/connected to the axle is suspect. (pads, rotors, axle u-joints, control arms, driveshaft, probably in that order). Based on you stating that you get a lot of noise through the body of the vehicle.
12-06-2016 | 11:12 PM
#18
Banned
Joined: Oct 2016
Posts: 1,553
Likes: 4
Year: 2000 and 1998
Model: Cherokee
Engine: 4.0
dont get much underneath. i trust only lots of big blocks of wood. jack stands scare me
12-07-2016 | 09:30 AM
#20
Senior Member
Joined: Dec 2015
Posts: 896
Likes: 32
From: Nationwide, USA
Year: 89
Model: Cherokee
Engine: Renix 4.0
I experienced the same noise the other day in cold/wet conditions but mostly in 4L. It's like an amplified disc brake "creaking" noise. I've recently inspected my brakes and the front end checks out ok, though all parts may be original with 167K+ miles as far as I know. I'm not too concerned with the noise. It's likely a result of glazed/polished rotors and pads. If it really bugs you I bet it would go away with resurfaced/new rotors and new pads.