Jump to content

Recommended Posts

Posted

I have a Brand New 2024 Denali Ultimate Sierra (6.2L 10 Speed) experiencing high vibration on day 1.  I picked up from out of town dealer on Saturday and took to Tire Store same day.  They checked balance and stated OK.  GMC Dealer checked and replaced both front break rotors.  Still have vibrations.  GMC Dealer checked tire balance and stated they were not balanced and the Tire Store got it wrong.   The truck still vibrates at highway speeds. Any suggestions?  This is a very expensive truck and rides rougher than my 2019 Silverado LTZ with 6.2 L and 10 Speed.

Posted

Vibration all over or is it one side?

 

The drive shaft usually needs to balanced after it is made.  You would see one or more pieces of metal welded to the shaft… perhaps one or all were knocked off the shaft or improperly spot welded:

Posted

Keep  taking it back to dealership.  You may be able to invoke the lemon law and get it replaced.

Posted
14 hours ago, SteveP45 said:

Vibration all over or is it one side?

 

The drive shaft usually needs to balanced after it is made.  You would see one or more pieces of metal welded to the shaft… perhaps one or all were knocked off the shaft or improperly spot welded:

Both sides experience the vibration.

 

Posted

I'm experiencing the same issue with my new Denali Ultimate. I just picked it up last Friday and it's showing the exact symptoms that have been described here. I took it back to the dealership and they told me it was a tire balance issue. However, after getting it back on Saturday, I still felt vibrations when I reached highway speeds of 65/70. I returned to the dealership today and they said they would need to investigate further. They gave me another Denali Ultimate as a loaner (it's brand new with only 12 miles on it), but the loaner vehicle is also experiencing the same issue.

  • 3 months later...
Posted
On 7/21/2024 at 1:59 PM, UFCHEME said:

I have a Brand New 2024 Denali Ultimate Sierra (6.2L 10 Speed) experiencing high vibration on day 1.  I picked up from out of town dealer on Saturday and took to Tire Store same day.  They checked balance and stated OK.  GMC Dealer checked and replaced both front break rotors.  Still have vibrations.  GMC Dealer checked tire balance and stated they were not balanced and the Tire Store got it wrong.   The truck still vibrates at highway speeds. Any suggestions?  This is a very expensive truck and rides rougher than my 2019 Silverado LTZ with 6.2 L and 10 Speed.

IMG_7320.MOV IMG_7300.MOV

I am experiencing the same issue with a 2024 Sierra 1500 Denali ultimate. I've gotten the wheels balanced twice and the vibration persists at highway speed. How was yours resolved?

  • 2 weeks later...
Posted
6 hours ago, ascalise said:

folowing, my 2024 z71 RST is doing the same thing.

Our team regrets to hear of this vibration concern you are facing with your vehicle and would like to take the time to investigate further on our end. To get started, please send us an email to [email protected]. Be sure to include your Username and Forum name in the subject line with additional details. We look forward to your email. 

Posted
On 11/15/2024 at 8:11 AM, ascalise said:

folowing, my 2024 z71 RST is doing the same thing.

We hope all is well. As previously mentioned, our team would like the opportunity to look into this matter on our end. To do so, please send us an email to [email protected]. Making sure that your Username and Forum name is within the subject line with additional specifics. Our team will watch for your email. 

Posted

Hi thanks for you concern.   I am not sure how emailing the social media department is going to help in getting this resolved.  Given my experience with GM and trying to solve these things, I don't have the time to waste at dealers for them just to tell me it is normal.  I have owned many new Chevrolet vehicles over the last 20 years and am very aware of how the service departments work when warranty work is involved.     

 

 

For those who follow this post for usefule information, I have a theory.   Since the wheel/tire location makes no difference and it seems like this vibration, at least on my truck is pretty centrally located, I am willing to be that the front axle shafts/joints are somehow out of balance.

 

  • Like 1
Posted (edited)

You are probably getting close.   Most drive shafts are balanced at factory where they are made.   The small thin steel weights are added to the shaft to balance it.   Check your drive shaft to see if you can see an outline of where a balance weight used to be… or maybe it was never balanced.   The quality of most post covid vehicles has not yet gotten back to the pre covid vehicles.

Edited by SteveP45
Added comments.
Posted

Sorry, I wasn't clear.  I am referring to the front half shafts since mine is a 4WD truck.  Driveshaft seems fine.

 

I agree, i had a 2022 refresh before this and the day i brought this home I noticed many things that I can't see how they got past quality control.   Door gaskets hanging off the door, not snapped into the holes in the door, dirt under the paint in various spots, loose and clunky driver seat, etc etc..  My last truck was an LT with cloth and jump seat, this one is leather with center console.  I had no issues with the driver seat on the other one.  As a matter of fact, aside from the bad software for the radio that was problem early on with all the refresh, I never had a single complaint with the last truck.    

 

I agree, for the price we pay for these vehicles, the quality should be much higher.

Posted
21 hours ago, ascalise said:

Hi thanks for you concern.   I am not sure how emailing the social media department is going to help in getting this resolved.  Given my experience with GM and trying to solve these things, I don't have the time to waste at dealers for them just to tell me it is normal.  I have owned many new Chevrolet vehicles over the last 20 years and am very aware of how the service departments work when warranty work is involved.     

 

 

For those who follow this post for usefule information, I have a theory.   Since the wheel/tire location makes no difference and it seems like this vibration, at least on my truck is pretty centrally located, I am willing to be that the front axle shafts/joints are somehow out of balance.

 

Please know, we take our customers concerns very seriously and strive to ensure that any and all matters are addressed to a level of satisfaction. Our team values your loyalty to the Chevrolet family, and we would like to assure you that we are here to help. If you find that you would like further assistance, do not hesitate to send us an email. 

Posted

 I am having the same issue with my 2024 Sierra Denali Ultimate.  They said it was a bad tire and replaced, but the truck is still vibrating.  Not sure where to go from here.  It is exactly like the original posters video.  The seat keeps on shaking! 

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

  • Latest Articles

  • Posts

    • www.enginelabs.com/news/what-i-learned-today-bearing-clearances-vs-oil-viscosities/     www.enginelabs.com/news/oil-viscosity-can-the-numbers-be-misleading/ The Big Lie… Coming full circle to the reason Lake discusses the Porsche engines in particular. Based on the 2000 samples in the SPEEDiagnostix database, increasing the oil viscosity in these engines, even those run on the track, showed no significant difference in results.   The smoking gun was in the oil chemistry. That is where the data shows higher instances of more wear. Molybdenum was the key; the higher the amount, the less the wear. Speed postulates that higher viscosity oils have more thickeners to artificially inflate their viscosity numbers. These thickeners lose viscosity under shear, and the result is that not all oils of the same viscosity have the same shear stability.   Having enough viscosity is the most important characteristic, but according to Speed, once that required viscosity level is reached, additive chemistry matters more than additional viscosity. Speed also states, oil pressure problems on the racetrack aren’t a viscosity problem; it’s an oiling system problem. Running a thicker oil is just a band-aid for an underlying oiling system problem.
    • Can it still be Assembled II?   Viscosity on the decline by various means. Heat on the rise making that worse. Engine RPM in the tank. Smaller motors with more boost trying to emulate an electric motor. Full torque, zero rpm. Then we will triple the OCI. Argh.    But wait....there is more. LSPI has pushed a shift from Ca to Mg and as that cost more PLUS the run to lower sulfur compounds the TBN is moving in the wrong direction for the increased OCI's demanded.    That not being enough to placate a demand for a parameter they can't measure the other sulfur bearing compounds are also under attack. That would be zinc and phosphorus sulfonate compounds. To some degree those are being replaced with boron esters and others, i.e. titanium ect. All of which have shorter service lives. And there there is the "Secrete Sauce" marketing for AW adds that 'Can't be detected by UOA's" but trust me because I (the blenders) never ever lie.    Spoiler alert; ALL additives are sacrificial! Smaller amounts of the old blended with less robust versions of the new do not equal longer service lives. So what are the blenders recommending? Wait for it.......   MOVING THE GOAL POSTS! OMG      Let's declare the long standing TAN/TBN crossover irrelevant and tell people that soot is a great 'graphite' based lubricant which can aid tribo films. Wait, what? Let's declare that the standards used for oxidation and nitration were to conservative and can be expanded. Let's tell them that because GDI fuel dilution, although being a VISCOSITY KILLER and an acid generator is actually okay because we have better base oils that limit viscosity failure limits. (Said knowing this is measured in fractions of a centipoise and in bases not commonly used in shelf oils)   Lying from the heart is not just the new normal but we have a public, a very young public, that is so ignorant of the facts and so sure of their "RESEARCH" into AI driven models base in regurgitated  instead of scientific research based unvarnished, peer reviewed FACTS that the incoming guard is loosing their grip on reality and the OEM's are tickled pink while the blends bend the knee.    You have an ever limited set of tools to work with. And sooner or later those will be taken from you as the API and the EPA strangle the last remaining fluids from the system. What you have left is your wits. If you care to use them.    At some point in the very near future it will not longer be possible to do "What is best for the machine", and be replaced with "The best you have access too". You WILL be rewarded with half the life and twice the cost. That isn't that hard to predict.         
    • I trust you saw the other comment where he knew what he was talking about !. Yes, these darned newer vehicles with all their so smart they are stupid technology, goes and drains the battery down. As you might see my other comment, I installed a Noco 5 battery tender under the hood and at this point still have the cord routed so I have to lift the hood and then plug it in but am typically parked in a garage or a shed so its not risking the engine hood in the wind. That way I am assured or hopefully so of not finding I have a battery drawn down and can't even start the truck and that also damages the battery to draw it down too far. 
    • I guess no surprise my guesses were wrong !, at least now I know if I ever happen to see it grayed out in my own truck as to what is going on.    I never happened to catch my truck with it grayed out, it seemed every time I would test to see if there was an update it never found anything and yet more than once I would check to see if there was an update and there was nothing, then a day later or even that same morning I would drive to town and after more than one engine shut down in town as I did my errands it would pop up that there is an update now ready to install and the only place I have a connection to the internet is at home by wifi so its not as if it grabbed the download while driving. I don't trust these new vehicles due to all the crap they can decide to do while sitting for some days not running and run the battery down so most of the time if I know the truck will sit for a few days I plug in the battery tender I have mounted under the hood and so the only time the truck must have downloaded software was when it was sitting in the garage where the signal is awful but I have that tender plugged in and somehow it managed to download it. I honestly detest all this crap, way to easy to leave a person stranded.    Since I don't trust any of it I don't do the install of the already downloaded software until I get home and sometimes have even sat in the truck to watch what its doing as its going through the process to its conclusion as its not like it is set up that it will tell you the next time you fire up the engine that the update that was initialed actually installed or installed properly. Yes I can go into the updates and see the list. After I go through the install where I feel its safe to do so in case it breaks down as a result, I will plug in the battery tender after the fact to recharge as I don't know how much power its taking just to do the install and that can take a while for it to install. 
    • Thanks for the reply. All settings were correct and the engine was off, as it was supposed to be. It turned out to be something simple. I took a drive for about an hour. I must have had a low battery without knowing it. The voltage gauge on the display looked ok. At the end of my drive, I shut off the engine and the update prompt came up and it updated normally. It’s ironic because one of the features of the update is a reduction of battery drain. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...