Low speed squeaking noise that goes away when brake is pressed

Lifted straight six

TJ Enthusiast
Joined
Oct 26, 2020
Messages
106
Location
arizona
Hello all, as of recently, I have been in full service mode.. some things done in the past 6 months
front driveshaft
rear driveshaft(both tom woods)
front disc brakes(rotors and pads)
axle shaft u joints
timken wheel hub replacements
rear drum brakes
full grease of all zerts

After doing all of this in attempts to stop my brake squealing, finally get a front driveshaft back in, etc… I have realized that after about 15-20 minutes of driving, I will get a low speed squeak that is most prominent on turns, and below 15mph. It sounds rotational, but it has also reacted with acceleration(bouncy squeak) a few times. The issue i’m having is locating this as it only makes noise when my brake isn’t pressed. As soon as I put any type of pressure on my brake, the noise stops COMPLETELY, doesn’t matter if I am turning or driving straight. Has anyone had this sort of issue? I would assume that since it stops when my brake is pressed, that it is brake related? It sounds like it is coming from the front end, but so did my rear driveshaft. Any help would be much appreciated!
 
I'd take apart the brakes and see if there's any debris, if a rotor is slightly warped, or the brakes pads are toast. I think you're on the right path though thinking it's the brakes.
 
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Check for wear grooves on the knuckles where the calipers ride.
1651606847889.jpeg
 
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I'd take apart the brakes and see if there's any debris, a caliper is slightly warped, or the brakes pads are toast. I think you're on the right path though thinking it's the brakes.
I think so too, as it is the only thing that makes sense that could be squeaking under the conditions it squeaks under… It only squeaks after about 20 minutes of driving, which tells me something is getting warm and im fairly certain that any noise that goes away with the touch of the brake has to be part of the rotating brake assembly. Wheel bearings were something another guy tried to tell me, but i’ve had bad wheel bearings and they made noise all of the time, just some noises were different.
 
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I appreciate you starting this thread @Lifted straight six, because I've noticed something similar with my LJ.

Very similar symptoms; drive a bit, then notice a rotational-based squeak (sounds as if coming from the rear) at low speeds, doesn't increase with speed, but immediately stops if slight brake pressure is applied. I've visually inspected the rotors for grooving and the pads do not look completely gone; however, I've not measured the remaining pad to verify.

I'm curious to see what you find.
 
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I appreciate you starting this thread @Lifted straight six, because I've noticed something similar with my LJ.

Very similar symptoms; drive a bit, then notice a rotational-based squeak (sounds as if coming from the rear) at low speeds, doesn't increase with speed, but immediately stops if slight brake pressure is applied. I've visually inspected the rotors for grooving and the pads do not look completely gone; however, I've not measured the remaining pad to verify.

I'm curious to see what you find.
I applied some brake lube/grease to the little sliders that @Gollywomper posted, and I have taken it on one drive since, and no squeak. Will keep you guys updated later tonight when i’m heading home from work and let you know if the squeak persists. I would make sure all your lug nuts are tight too(especially in the front)!
 
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I applied some brake lube/grease to the little sliders that @Gollywomper posted, and I have taken it on one drive since, and no squeak. Will keep you guys updated later tonight when i’m heading home from work and let you know if the squeak persists. I would make sure all your lug nuts are tight too(especially in the front)!

Where exactly are y’all applying the lube? I can’t tell from the picture.