Jump to content

Caliper, Hub or something else?

Jetblackz28
 Share

Recommended Posts

Jetblackz28 Enthusiast

Jetblackz28

Posted
Posted

I have a 2020 Silverado 1500 LT 5.3 w/ 8 speed trans with just over 9k miles. After driving the truck for a while(not sure exact amount of time) but typically half hour to an hour at least. A noise starts to happen on my driver side. The best I can describe it as a dull chirping noise or something rubbing and it varies based on speed. I'm assuming its in the brake system or hub and not the motor as the noise varies based on speed but stops completely once I'm at a dead stop, and is a lot more audible on the driver side then the passenger side. I've taken my truck in before for this issue, but was told they couldn't replicate the problem and even with the truck on the lift, everything is still so new looking that they couldn't tell anything. I have an appointment tomorrow to have it looked at. I've scheduled it so I can drive the truck a while before hand and then have the tech come with me, hoping I can get it to replicate the issue while the tech is with me.

 

Anyone have a similar issue or any insight to point them in the right direction?

Gangly Senior Enthusiast

Gangly

Posted
Posted

Check the dust shield on the backside of the rotor.  It can get pushed into the rotor and cause a noise once the heat generated by use causes every thing to expand.

Thejet07 Enthusiast

Thejet07

Posted
Posted

It’s your front diff chirping. It’s a well known issue with no fix. Several threads on this. Put it in auto to see if it goes away. If it does it’s most likely your culprit. Once it warms up the stub shaft jingles around making that chirp noise. Gm has had several revisions for their tsb on this and it still has not been successful. Also, another way to tell is if you look under your truck and see if your front diff is an SU4. If so, I could almost guarantee this is your issue.


Sent from my iPhone using Tapatalk

Jetblackz28 Enthusiast

Jetblackz28

Posted
  • Author
Posted
4 minutes ago, Thejet07 said:

It’s your front diff chirping. It’s a well known issue with no fix. Several threads on this. Put it in auto to see if it goes away. If it does it’s most likely your culprit. Once it warms up the stub shaft jingles around making that chirp noise. Gm has had several revisions for their tsb on this and it still has not been successful. Also, another way to tell is if you look under your truck and see if your front diff is an SU4. If so, I could almost guarantee this is your issue.


Sent from my iPhone using Tapatalk

Thanks for the info, I plan on trying to make this happen before I go into the dealership tomorrow, so I’ll test that before I actually go in.

Thejet07 Enthusiast

Thejet07

Posted
Posted

No problem, I’ve been through with the dealership multiple times. Like you’ve stated it takes time for it to warm up. It doesn’t do it as much in the winter but warmer weather it gets louder and more frequent and doesn’t take as much time driving to start hearing. As long as you get it documented.


Sent from my iPhone using Tapatalk

Jetblackz28 Enthusiast

Jetblackz28

Posted
  • Author
Posted
19 hours ago, Thejet07 said:

It’s your front diff chirping. It’s a well known issue with no fix. Several threads on this. Put it in auto to see if it goes away. If it does it’s most likely your culprit. Once it warms up the stub shaft jingles around making that chirp noise. Gm has had several revisions for their tsb on this and it still has not been successful. Also, another way to tell is if you look under your truck and see if your front diff is an SU4. If so, I could almost guarantee this is your issue.


Sent from my iPhone using Tapatalk

So I did try the auto when I got it to make the noise again today. You are right, when I put it in Auto the noise went away. I went to the dealership and had the tech come with me and he herd the noise. They looked into it and talked with GM. GM told them they need to replace my axel shaft along with a couple seals. But the parts are on back order. So they said I can come get my truck and they'll call me when they get the part.

Thejet07 Enthusiast

Thejet07

Posted
Posted

The “fix” does not fix it. It will come back. I’ve had it repaired multiple times and had my front differential replaced. There is no fix for the su4 diff.


Sent from my iPhone using Tapatalk

Jetblackz28 Enthusiast

Jetblackz28

Posted
  • Author
Posted
14 minutes ago, Thejet07 said:

The “fix” does not fix it. It will come back. I’ve had it repaired multiple times and had my front differential replaced. There is no fix for the su4 diff.


Sent from my iPhone using Tapatalk

Well that sucks, if the truck keeps making that noise its going to irritate me. If there is no fix short of putting in a new updated diff, could you try lemon lawing the truck? I guess what are you doing about it? 

Thejet07 Enthusiast

Thejet07

Posted
Posted

I hired a lawyer and settled already. I kept the truck due to low inventory. I purposely put a muffler on so that I can’t hear it now lol. Sorry for the bad news.


Sent from my iPhone using Tapatalk

Jetblackz28 Enthusiast

Jetblackz28

Posted
  • Author
Posted
1 hour ago, Thejet07 said:

I hired a lawyer and settled already. I kept the truck due to low inventory. I purposely put a muffler on so that I can’t hear it now lol. Sorry for the bad news.


Sent from my iPhone using Tapatalk

Sorry if you already posted this somewhere else, but what was the settlement you and GM agreed on?

 

Gotcha, well at this point if its not fixable I'll deal with till the point of lemon lawing it and then probably switch to Ram. But who knows how long that will take since I live in Wisconsin and the law states the same issue has to be repaired 4 times and still not fixed or sitting unusable for 30+ days. And well, they still let you drive the truck while it makes the noise and with the parts on back order. Who know how long it will take to get it fixed 4 times.

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

  • Latest Articles

  • Posts

    • Black02Silverado
      Missing thrust bearing? And oil selection

      By Black02Silverado · Posted

      Maybe, but it seems he is the only one that has backed up data to prove what he is stating. I think he is doing this more because he enjoys it and wants to get the information out to us. He's got the knowledge and access to the proper equipment and having the funds doesn't hurt.  I would love to do what he is doing and would do it if and when I hit the Powerball.  I'm not a Tribologist by any means but love to learn what I can.   I would bet there would be doubting people out there if a completely independent lab with high quality work and highly respected in the automotive industry, put out information like this.  The world can't be pleased, one just has to take the information that they are given, do more of their own research to find actual lab data to back up what they are trying to figure/find out.  Most don't bother, they just want to believe what they first see.     I don't have the minimax but my 6.2 in my 2019 Silverado with 64k miles shows excellent UOA results with 0w-20 and for my own purposes 5w-20.  Since not much of a change using 5w. I liked the data sheet information on the SS 5w-20 and figured I would give it a try.  Still the same viscosity at 100℃.   In the end we all just do what makes us happy, life is too short to get upset over trivial social media.   On a side note, I do feel GM has dropped the ball and just cares about the bottom dollar and not quality anymore.  "Like a Rock" has been long gone.  Seems "Built Ford Tough" has as well.
    • Tyler Gibbs
      Thoughts on these wheels?

      By Tyler Gibbs · Posted

      Better than stock but that's like putting lipstick on a pig
    • flattop
      2026 sierra bad brake controller

      By flattop · Posted

      Hello, my 3 month old Sierra Elevation wont recognize a trailer with electric brakes? All the lights work correctly, but no power to the brakes?   This is the factory installed brake controller. If you manually push the knob, the display shows the power % but does not light up like my 2022 silverado.   I have an appointment with the dealer, but was checking to see if anyone else has seen this issue.    Thanks, 
    • Black02Silverado
      Post your latest oil change.

      By Black02Silverado · Posted

      Been using SS 0w-20 from new, but wanted to change to the 5w-20 because I liked the data on the data sheet, to me it seems like a little better product. But as you can see, not much difference. This is also with running a mix of 10 gallons E85 to a tank topped with 93. It isn't a flex fuel vehicle so any higher I get a CEL for running lean on both banks. Yes my mileage takes a hit. Instead of 20 mpg I normally get on trips I get 17mpg. This is also using EaO17 filter.  What is amazing is I have the AMSOIL cone filter on it since I have the GM Performance intake installed and that air filter has 44k miles on it.  I just take it out and shop vac it off once a year.  I use the upholstery tool on my shop vac.  Works well.   
    • revmanii
      Starting a new thread regarding mounting my 2014 OEM wheels to my 2026

      By revmanii · Posted

      So, lot's of googling and reading, and a trial fit found, that indeed they hit the newer fatter caliper. I did some re-testing today, and found just 3/16" worth of washers was enough for the wheel to spin freely. I added 2 more on each, and again it spun freely. Tested lock to lock with the 4 washers, about 5/16" not quite the 3/8" Im considering, but pretty close. No issues. I've been looking at the BORA .375" spacers and using extended lugnuts to get back lost thread due to the spacer. All the ET lugs I've seen are all .33" reach inside the wheel lug holes. For those that don't like spacers or think they're unsafe, I think it depends on what type of spacers you're using and making sure you get good quality hubcentric ones, and if you're using bolt on ones, regular mainenance, checking the spacer lugs. Not wanting or needing that much spread. Looking for the minimum that will let me run these rims and tires.  it does look to stick out a little, but I really want put these on. and use the stock all-terrains in the winter. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...