Jump to content

Metal Grinding Noise

Mysz

By Mysz
in Troubleshooting, Warranty & Recalls

 Share

Recommended Posts

Mysz Enthusiast

Mysz

Posted
Posted

I’ve recently been experiencing what I’d call metal grinding noise on my 2020 Silverado TB. It only occurs when I’m going about 10mph and can either be coasting or stepping on the break and going straight and/turning. The noise is appears to be coming from the front. 
 

I’ve uploaded a video here to YouTube and included in the post.  it’s more an audio file but than video  the first noise occurs when I’m coasting at 10 mph and the second noise at about 2 seconds in is when I’m turning the wheel  


 

I just turned over 45k this past weekend. Has anyone had this same issue or know what is causing it? Or if it may be something covered under warranty?

 

thanks!

 

 

Mysz Enthusiast

Mysz

Posted
  • Author
Posted

Brakes are still solid. No issues there and the ‘brake gauge’ says front are at 50% and rears are at 70%

repairman54 Enthusiast

repairman54

Posted
Posted

Do not trust the ''brake gauge''. Pull the wheels and look at the inside pads. 

  • Like 1
andrewb24 Enthusiast

andrewb24

Posted
Posted

sounds like the dust sheild around the rotor is bent. take wheel off and spin the rotor and if you hear scraping then make sure the dust sheild isnt in contact with it, bend it back away from rotor if it is.

Rook126 Enthusiast

Rook126

Posted
Posted

I'm steering toward a heat shield as CamGTP mentioned. 

This might not be the source of your noise but it was for my 2020 Sierra. 

 

 

Mysz Enthusiast

Mysz

Posted
  • Author
Posted

Update: I checked all of my heat shields and none were loose. That said, I took my truck in to my buddy’s shop to get it checked out. They couldn’t find anything with any of the heat shields and the brakes checked out fine. What they believe it is, is uneven wear on the tires despite routine tire rotation at every oil chance (7500). 
 

So my plan is to tackle new tires in the fall to get me past the 50k mileage mark. Only reason I’m not changing them yet is due to me trying to hold off on stretching a dollar until the fall. 
 

thanks for all the input. I’ll update once i get thee new tires. 

andrewb24 Enthusiast

andrewb24

Posted
Posted
On 3/8/2024 at 2:33 PM, Mysz said:

Update: I checked all of my heat shields and none were loose. That said, I took my truck in to my buddy’s shop to get it checked out. They couldn’t find anything with any of the heat shields and the brakes checked out fine. What they believe it is, is uneven wear on the tires despite routine tire rotation at every oil chance (7500). 
 

So my plan is to tackle new tires in the fall to get me past the 50k mileage mark. Only reason I’m not changing them yet is due to me trying to hold off on stretching a dollar until the fall. 
 

thanks for all the input. I’ll update once i get thee new tires. 

 

 

The heat shields/dust sheilds could be bent inward and rubbing on your brake rotors.   This may not be the case but its worth checking, When I installed my leveling kit on my 2020 Silverado I set the rotors on the ground when I had everything broke loose to get the struts out to install the kit, then when i put everything back together I heard a grinding noise when i was driving at low speeds and I thought for sure I had torn my truck up but I checked the sheilds and they had bent in where I sat the rotor on the ground and I believe i bent them back outward by hand but I may have used a screwdriver, they are just thin metal sheilds and anything could bend them pretty easy.  I took the wheel off and just ran my hand around the rotor to find where it was contacting the rotor and causing the noise.  

  • Thanks 1
Gangly Senior Enthusiast

Gangly

Posted
Posted
On 2/27/2024 at 9:30 PM, JimCost2014 said:

How are your brakes? You are kind of in the window to replace mileage wise.

45k is waaaaay early on these brakes.  I have 125K on my truck and still have 40% front, 60% rear.

Steve-2019 Enthusiast

Steve-2019

Posted
Posted
4 hours ago, Gangly said:

45k is waaaaay early on these brakes.  I have 125K on my truck and still have 40% front, 60% rear.

 

True, unless you live in the salt belt area.

  • Thanks 1
  • 3 weeks later...
Mysz Enthusiast

Mysz

Posted
  • Author
Posted

update here. i checked out the heat/dust shields on the brakes and sure enough that was it. i adjusted the shields and the noise went away on both sides.

 

thanks for the help!

  • Like 1
andrewb24 Enthusiast

andrewb24

Posted
Posted
21 hours ago, Mysz said:

update here. i checked out the heat/dust shields on the brakes and sure enough that was it. i adjusted the shields and the noise went away on both sides.

 

thanks for the help!

good deal, nice feeling when you find out something you feel like is very bad turns out to be an easy fix lol

19 Denali ultimate Enthusiast

19 Denali ultimate

Posted
Posted
On 3/11/2024 at 10:08 AM, Gangly said:

45k is waaaaay early on these brakes.  I have 125K on my truck and still have 40% front, 60% rear.

Mine were absolutely shot at just under 60k.  The sensors are NOT accurate.  Mine said there was %70 in front and %85 in rear.  Both front and rear pads with the sensors had worn half way through the sensors.  All 4 corners needed pads and rotors.

Gangly Senior Enthusiast

Gangly

Posted
Posted

Thanks for the heads up, but I checked when I recently put new wheels and tires on approximately 4k miles ago, and the pads had plenty of life left front and rear.  I do A LOT of long distance highway miles though, so that might be why mine last considerably longer than most.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,759
    Total Members
    8,960
    Most Online
    DM22
    Newest Member
    DM22
    Joined

  • Who's Online   1 Member, 0 Anonymous, 2,836 Guests (See full list)

  • Latest Articles

  • Posts

    • B14Sierra
      Cam chain tensioner question

      By B14Sierra · Posted

      So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • dna9656
      No low range 4 x 4

      By dna9656 · Posted

      My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • asilverblazer
      Transmission Woes :-(

      By asilverblazer · Posted

      Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • Chuck FB
      summer road trips in the 2026 2500HD

      By Chuck FB · Posted

      I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...