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Scrubbing/Rubbing Noise from rearend when first moving after sitting a day or so

HiyoSilverardo_Away
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GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 11/3/2022 at 6:47 PM, Phantom 4D said:

Yes. Same issue on my 2019 Sierra. More noticeable in cold weather. Typical dealer service manager answer, all the 2019 trucks do that. So I stepped out and asked "what is GM doing about it?" Crickets.  

This is certainly not what we like to hear, Phantom 4D.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2019 GMC Sierra LT. To do so, please send an email to [email protected] with ATTN: Phantom 4D/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
 

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Dersch
Dersch

Mine also does this but for me it sounds like its the front brakes. Whenever the trucks cold.... about 12 hours without running when i apply medium to light brakes i hear it and feel it... goes away w

HiyoSilverardo_Away
HiyoSilverardo_Away

Well for those following this thread, after having unplugged the power lead to the motor on the passenger side brake caliper (the emergency brake), I have no issues with the scrubbing, rubbing. I

Phantom 4D
Phantom 4D

Brakes are not warranted. Considered a wear item. 

Phantom 4D Enthusiast

Phantom 4D

Posted
Posted
33 minutes ago, GMCustomerService said:

This is certainly not what we like to hear, Phantom 4D.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2019 GMC Sierra LT. To do so, please send an email to [email protected] with ATTN: Phantom 4D/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
 

I'll do that. Will you also address the ongoing transmission problems?

  • 3 weeks later...
Jricharc Enthusiast

Jricharc

Posted
Posted (edited)

So I finally got my truck back from the dealer. They replaced the differential, the carrier bearings and found that the pinion bearings were bad as well. They replaced the inner and outer pinion bearings and seal. So far so good and it's not making the grinding noise anymore.

Edited by Jricharc
  • 1 month later...
Oldschool99 New Member

Oldschool99

Posted
Posted

I suspect oxidation on rotors because it goes away after braking.  I have 20,000 miles and hear this noise every morning.  I’m really surprised GM hasn’t responded.  Like most of you, I’d rather go to dentist than the dealer.  

Phantom 4D Enthusiast

Phantom 4D

Posted
Posted
11 hours ago, Oldschool99 said:

I suspect oxidation on rotors because it goes away after braking.  I have 20,000 miles and hear this noise every morning.  I’m really surprised GM hasn’t responded.  Like most of you, I’d rather go to dentist than the dealer.  

See comments above. Good luck. 

  • 9 months later...
Rick66 New Member

Rick66

Posted
Posted

I’ve got a 2022 and that noise is driving me crazy. It’s getting worse it seems and I believe it is the parking brake. On an incline it sets itself. Idk if it adjusts itself. The mileage is horrible and you can feel it and hear it. Frustrating when you finally buy a 50 some thousand dollar truck ….& you hate it because of this bullshit!

Phantom 4D Enthusiast

Phantom 4D

Posted
Posted

My 2019 would drive me crazy with that noise. I don't have that problem anymore. My 2023 Sierra doesn't do it. 

  • 4 months later...
Kevin Jim New Member

Kevin Jim

Posted
Posted

Guys I figured it out!!!! Here’s what to do. I’ll explain what I found and how to fix it in the next paragraph.
 

when you change your rear brakes and screw in the 14mmscrews make sure you use the 17mm bolt to keep it backed off the caliper. If your tighten the 14mm bolt without holding the 17mm It’ll force the bolt it mounts on the caliper to become a little off. When you tighten the 14mm bolt make sure you use the 17mm bolt to tighten the screw back towards each other.
 

My rear end was making a weird noise that sounded like a low rubbing noise when I would only make LEFT TURNS at 10-14mph. I just finished changing all my brake pads on my 2020 trailboss. Didn’t have the noise before at 55k miles. 
 

hope this helps

  • 1 month later...
Garrett Payment New Member

Garrett Payment

Posted
Posted

 

I have a 2019 sierra  sle  air lift suspension  5.3 8 spd trans dbl cab with 105thousand kms my truck makes this same noise on uneven  terrain normaly when cold in drive or reverse at slow crawl  driving me insane... have brand new rotors and pads so im thinking wheelbearings or shaft or somthing... 72 grand this truck should not be like this...

 

  • 4 months later...
Nahogan94 New Member

Nahogan94

Posted
Posted

For anyone following:

 

I know there’s been a few different solutions, but I wanted to share what I did to fix this issue. It’s been a week now, and the noise (exact same as shown in this thread) has not come back.

 

I ended up finding that my rear drivers side brake caliper appeared to be “sticking” when it was wet and cool, then once it heated up, it would finally release. I was ended up replacing the entire brake caliper, and problem solved! 
 

However, I will add this side note: you need to make sure that the little cutouts on the piston line up at the 6 and 12 position in relation to the caliper. I found out that my old caliper was just fine, but those notches in the piston got out of alignment, and they were pushing my brake pad up/down and creating excess pressure on one end of the pad where it touches the caliper. This wasn’t allowing the brake pad to actually spring back away from the disk.

 

My recommendation, or rather what fixed it for me, is to take your caliper and pads off, check orientation of the caliper piston, and reassemble. If that doesn’t help, might be time to replace the caliper! When I checked all 4 of my tires, none of them made the noise, but as soon as I got to my drivers side rear, it was hard to spin and made that rubbing/scrubbing noise.

 

Good luck! 
Nick

  • 2 months later...
Jake209 New Member

Jake209

Posted
Posted

Has anyone officially figured out the issue? Mine does the same thing, but i have also noticed it while driving off road on uneven terrain, also during the cold start/drive first thing in the morning. Any then yesterday I went to back into a parking spot and it did it again on flat ground just reversing after about 20 minutes of driving. 

  • 3 weeks later...
eleet auto New Member

eleet auto

Posted
Posted

Its not the parking brake or brakes at all...its the extrenal tone ring behind the axle flange rubbing on the axle tube....its a dumb design with minimal clearance and no dust seal...just fixed a 2021 with same issue still made noise with caliper and pads removed...primarily when cold

eleet auto New Member

eleet auto

Posted
Posted
On 10/20/2020 at 8:42 AM, HiyoSilverardo_Away said:

Well I think I have finally narrowed it down, but have not been able to figure out the best course of action to resolve the issue.

I let the truck sit for a day and night and then jacked it up just enough off the ground.

In the video (hope it  attaches correctly) you can hear the noise.  Now it does go away after a few hundred feet of driving, but it sounds pretty bad.

So here is what I ended up doing to narrow it down.

I removed the caliper, compressed it, inspected the pads, they are virtually brand new, less than 1,000 miles.  I put it all back together and no noise.  I drove it around with minimum stopping.  Parked it for a day and a night, no noise.  Then I engaged the parking brake on a hunch.  Disengaged it, drove it around the driveway a little and then wham, there was the noise!

With the new emergency brakes/parking brakes, they use an attached motor of some sort to engage the caliper of the actual brake shows, not a separate set of brake shoes or calipers.

 

I suspect that the motor or something needs to be adjusted some how to back-off maybe a small amount, but not sure. 

 

If you listen to the truck when you first unlock the doors you can hear what I think are the motors disengaging or at least spinning.

 

This is pretty annoying!

I had, had a trip planned to the dealership, but the nasty little bug Covid struck some folks and had to cancel the appointment. 

 

Anyone here though know anything about this new parking brake setup and maybe how to adjust it?  Avoiding the dealership is always on my list of things to do, avoid at all costs if at all possible.

 

 

Not adjustable and the brakes aren't causing the rubbing sound.  It's the tone ring behind the axle flange rubbing slightly on the axle tube...i just fixed same issue at left rear wheel on 2021 silverado...it still made same noise when cold with caliper and pads removed and does not have an internal e brake etc

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