Hey all! My 2010 Yukon Denali has a horribly loud, annoying, noise that sounds like brake squeal but I've changed the brakes and see nothing wrong. I've cleaned, inspected and can't find anything. It does it around 60mph cool and lower speed after driving awhile. It comes in and out and stops when braking. If I don't figure this out soon I'm going to start wearing ear muffs while driving. Any advice would be greatly appreciated.
Mystery Noise
- Thread starter Brymck
- Start date
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I'd check wheel bearings to make sure they don't have play djarnis causing the rotor to move and drag on the pads when moving.
Does it go away with light pressure or heavy brake pressure? Front or rear? Can you pinpoint it near a building or cement wall?
Does it go away with light pressure or heavy brake pressure? Front or rear? Can you pinpoint it near a building or cement wall?
Like a idiot I didn't check for bearing play while I had it up but I'm gonna do that tonight. Yes it does go away with both light and heavy brake pressure and it sounds like it's in the front passenger side from what I can tell by passing cars, buildings ext.
I changed the brake pads, and hardware only. Was waiting to do the rotors till after we move. We bought a house and it has been hectic to say the least
Alessandrolomb
Member
Make sure every part of your brakes is put in right and lined up properly. Even if you've got new brakes, little things like bolts, clips, and shims could be off or even missing, causing noise. I'd say give everything a good once-over to make sure it's all snug and in the right place.
mikez71
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Scuffing the rotors with sandpaper usually helps if you see grooves..
I got the rotors on the agenda for next weekend. One of them has some grooves on the back side.
I'm going to look it over real good before and after I change the rotors.
One more thing to add. Be sure to clean the piston and caliper pad face to remove any corrosion with a smooth file - want it uniform. Wipe clean. Then apply a thin layer of high temp silicone to the pad shims when reinstalling.
Based on what has been shared, I think with some new rotors and a once over, you'll be back in biz
Based on what has been shared, I think with some new rotors and a once over, you'll be back in biz
Alessandrolomb
Member
That's a good approach, I think
Just wanted to give an update. I pulled all the brake pads after a neighbor who is a recently retired mechanic asked if the pads were tight when I installed them. I feel just as ignorant for saying this as I do doing it, but yes they were. I just assumed it was one of GM's "great" engineers designed them this way for some funny reason but I ended up cleaning and greasing moving parts, grinding a little off both ends of each pads and now the sound is almost nonexistent. I will be changing the rotors this weekend as well. Who ever heard of having to grind your brake pads to fit lmao
