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Shake or Vibration Issues

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EDL Enthusiast

EDL

Posted
Posted

I have had the road force balance done, changed nothing.  Still on the factory tires (I only have 35,000 miles on the truck) and am curious if different tires will change or fix things, but I'm not convinced it is the tires.  I'm looking for a set of cheap used or basic 17" steel wheels to put snow tires on (17" snow tires are a lot cheaper than 22 inchers!).  That will give me the chance to see if there is any difference.  I've also tried the air pressure thing, but I have the 22" wheels with the rubber band tires and if I pump them up, the ride is horrible, but it doesn't change the vibrating at all either.

I really do want to just get rid of the truck, but as mentioned a comparably equipped Ram is just too much right now.  I think it's ridiculous that these trucks have had all these issues and GM just doesn't seem to want to do anything about it.  I am also very unhappy with how I've been treated by the Chevy dealers and Chevy.  I think the front brake pad issue should have been taken care of no questions asked.  Yes, brakes are a wear item, but these obviously had a problem that was not due to normal wear and tear.  I was also not happy that I had to spend more time and effort to finally get a dealership to do the tranny fluid change, especially considering the known issues, TSB's, and the fact GM admitted they put the wrong fluid in them.  Being told that they don't do TSB's because "I" want it done?  Really?  Perhaps if the issue was something that wasn't on all vehicles, but this whole transmission thing is a no brainer, still....

I really don't want to have to go spend more time and money chasing down issues myself...I shouldn't have to.  I am willing to try some things if they're relatively cheap and easy, like the clamps on the leaf springs, but I'm not paying to have the drive shaft balanced or any of the other crap others having to do.

Regardless, even if I do somehow manage to get things relatively straightened out on the cheap, this is my first GM in 20+ years and it will be my last.   

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csckickass
csckickass

Well folks, I did it. After all the failed attempts at the Chevy dealer I traded it in for a 2015 Ram 1500 Larame. I have to agree with the other folks on here that have done the same thing, it was th

mafd2
mafd2

Apparently you and the other customer reps don't care. If you or GM would care y'all would put more effort in the matter. Just coming on the forum and stating the same repetitive posts and being a 3

DALaws
DALaws

Well I have some good news and bad news about my truck vibrations. Good news is that my truck has a significantly less vibration at speed. The bad news is my truck has significantly less vibration. Fo

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Snoringbear Enthusiast

Snoringbear

Posted
Posted
16 hours ago, EDL said:

I have had the road force balance done, changed nothing.  Still on the factory tires (I only have 35,000 miles on the truck) and am curious if different tires will change or fix things, but I'm not convinced it is the tires.  I'm looking for a set of cheap used or basic 17" steel wheels to put snow tires on (17" snow tires are a lot cheaper than 22 inchers!).  That will give me the chance to see if there is any difference.  I've also tried the air pressure thing, but I have the 22" wheels with the rubber band tires and if I pump them up, the ride is horrible, but it doesn't change the vibrating at all either.

I really do want to just get rid of the truck, but as mentioned a comparably equipped Ram is just too much right now.  I think it's ridiculous that these trucks have had all these issues and GM just doesn't seem to want to do anything about it.  I am also very unhappy with how I've been treated by the Chevy dealers and Chevy.  I think the front brake pad issue should have been taken care of no questions asked.  Yes, brakes are a wear item, but these obviously had a problem that was not due to normal wear and tear.  I was also not happy that I had to spend more time and effort to finally get a dealership to do the tranny fluid change, especially considering the known issues, TSB's, and the fact GM admitted they put the wrong fluid in them.  Being told that they don't do TSB's because "I" want it done?  Really?  Perhaps if the issue was something that wasn't on all vehicles, but this whole transmission thing is a no brainer, still....

I really don't want to have to go spend more time and money chasing down issues myself...I shouldn't have to.  I am willing to try some things if they're relatively cheap and easy, like the clamps on the leaf springs, but I'm not paying to have the drive shaft balanced or any of the other crap others having to do.

Regardless, even if I do somehow manage to get things relatively straightened out on the cheap, this is my first GM in 20+ years and it will be my last.   


wow, haven’t looked at this for a few years.  The first post on this thread was August 4th, 2013.  Now, 854 posts later still hammering away at same’o same’o problems and none-solutions.

bumtruck Enthusiast

bumtruck

Posted
Posted
On 12/11/2021 at 9:43 AM, Snoringbear said:


wow, haven’t looked at this for a few years.  The first post on this thread was August 4th, 2013.  Now, 854 posts later still hammering away at same’o same’o problems and none-solutions.

   

  The real sad part about all this is it's not 854 posts it's 854 PAGES of posts which is about  12800 posts and replies !!

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WT35002017 Enthusiast

WT35002017

Posted
Posted

I have looked at many of the posts here to see if anyone has done what I have to alleviate these vibrations but I don’t think anyone has. Background: I used to race 1/8 mile asphalt supermods so I never liked the thought of torque restriction electronics or ABS or traction control. I had the vibration problems even when my 2017 Silverado 3500hd WT was new, especially it was felt while slowly shifting from 2nd to 3rd and then to 4th. Modulation of throttle in higher gears also caused vibration.  I removed traction control and ABS fuses and the vibrations are no longer present. Smooth as glass all the way to 90.  I have dash lights now but in the future may be able to take them away with HPtuners.  The truck is a different animal with this easy mod as acceleration is not hindered and is now instant. I am convinced that there are programming issues related to the transmission and torque control. The transmission, 6L90, now shifts firmly also. Love my truck, love every vehicle I’ve ever owned. I mostly tow with my truck so I had to buy a towing brake system since the factory one is disabled when I disabled the ABS. Totally worth it, the trailer brake is better than what came with the truck by far. Good luck to all out there!

  • Like 1
Pinnacle Enthusiast

Pinnacle

Posted
Posted
22 hours ago, WT35002017 said:

I have looked at many of the posts here to see if anyone has done what I have to alleviate these vibrations but I don’t think anyone has. Background: I used to race 1/8 mile asphalt supermods so I never liked the thought of torque restriction electronics or ABS or traction control. I had the vibration problems even when my 2017 Silverado 3500hd WT was new, especially it was felt while slowly shifting from 2nd to 3rd and then to 4th. Modulation of throttle in higher gears also caused vibration.  I removed traction control and ABS fuses and the vibrations are no longer present. Smooth as glass all the way to 90.  I have dash lights now but in the future may be able to take them away with HPtuners.  The truck is a different animal with this easy mod as acceleration is not hindered and is now instant. I am convinced that there are programming issues related to the transmission and torque control. The transmission, 6L90, now shifts firmly also. Love my truck, love every vehicle I’ve ever owned. I mostly tow with my truck so I had to buy a towing brake system since the factory one is disabled when I disabled the ABS. Totally worth it, the trailer brake is better than what came with the truck by far. Good luck to all out there!

LOL, there you go remove TC and ABS and its fixed, gotta love people buying these engineering fails and trying to reengineer a failure. 

WT35002017 Enthusiast

WT35002017

Posted
Posted

Unfortunately the dealership won’t pay me to spend my time going over with them what is wrong and needs to be fixed. The whole culture of the customer bowing down to the almighty corporations to me is just crazy. When I bought the truck I figured it would take me a little time to sort it out. If the fuel injection system was defective I would have just slapped a carb on it and been more than happy doing it too.  As you can tell, I’ve owned a BMW before…

  • Like 1
  • 4 weeks later...
pokismoki Senior Enthusiast

pokismoki

Posted
Posted (edited)

the vibrations I managed to track down , was caused by the torque converter "slip rpm" tables in the tcu.  a quick fix is to drive the druck in 4th or 5th gear and in tow haul, this disables v4 mode tcc slip tables and towhaul should disable tcc depending on your tcu software.

 

really need to reprogram everything on the transmission  software

 

 

when i was messing around with the software in v4 mode, i changed the slip rpm for tcc to as close to 0 rpm as possible to maximize lock up on the highway, well that back fired and gave me tremendous shake and vibrations, so the tcc actually needs slip when lugging the motor so as not to feel the vibes at that low rpm

Edited by pokismoki
  • 1 month later...
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Michael J Dixon New Member

Michael J Dixon

Posted
Posted

I sold these trucks. I had a customer complain about this. Service department had to put a new drive shaft on it. My 2014 is doing the chevy shake now. I'm going to change drive shaft and rear axles.

Pinnacle Enthusiast

Pinnacle

Posted
Posted
On 4/25/2022 at 7:56 PM, Michael J Dixon said:

I sold these trucks. I had a customer complain about this. Service department had to put a new drive shaft on it. My 2014 is doing the chevy shake now. I'm going to change drive shaft and rear axles.

 If you sold these things and you actually worked at a dealership then you should know The drive shaft does not solve the problem .It's the torque converter that's the problem and if that doesn't fix it then you're gonna be throwing everything at it  

Dearmosd Enthusiast

Dearmosd

Posted
Posted
7 hours ago, Pinnacle said:

 If you sold these things and you actually worked at a dealership then you should know The drive shaft does not solve the problem .It's the torque converter that's the problem and if that doesn't fix it then you're gonna be throwing everything at it  

Any new torque converter or do you have a suggestion? 

Pinnacle Enthusiast

Pinnacle

Posted
Posted (edited)
20 hours ago, Dearmosd said:

Any new torque converter or do you have a suggestion? 

Gm has an updated one, so does the aftermarket world. But before doing that there is a new mobil 1 tranny fluid that gm came out with its a tsb.  Do that first 

Edited by Pinnacle
Willyone Enthusiast

Willyone

Posted
Posted
1 hour ago, Pinnacle said:

Gm has an updated one, so does the aftermarket world. But before doing that there is a new mobil 1 tranny fluid that gm came out with its a tsb.  Do that first 

Thanks for that info Pinnacle. My '16 Silverado 5.3 has the shake. Comes in starting in the low 70 MPH range. Is there a part number or item number for the Mobile 1 trans fluid that you mention?

 

Also, can an independent shop do the fluid flush, or does the truck need to be plugged into a dealer/GM computer for a reflash after the flush is completed. I'd like to avoid the dealer if possible due to no to little faith in their abilities.

 

Thanks again

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    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thanks for all that information, I might purchase one and see if it will work for me, if not they may let me return it! Yes for sure the tires are definitely within limit for my truck empty, and when I do tow I'll definitely make sure to raise the rear psi for the amount of weight that's going to be on it.
    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      Yes exactly, more and more these days people/companies are afraid of liability issues so its easier just to say no rather than risk putting their neck on the line.    I will say with the Autel unit or when I used it last year on my truck, it wasn't like I could choose the 2025 model year or even the 2024 model year as that option was not there to manipulate the placard pressures but had to go back to 2023 or there abouts and then it showed up as an option, odd but that was how the software was then and I can't say one way or the other now as they throw out updates every so often. I still would talk to your tire dealer though to start with and they may do it for nothing but also they may have a comment on a better unit to purchase. All I know is that one of the large tire shops in my area happens to use these Autel units for their use and set them up to use the wifi and all of that jazz for constant updating because each tire tech has one handed to them by the shop but I just plugged it into my laptop to update it and yes if one is bought it has to be registered so you can get the link to do updates and then the unit has to be updated before its even used. I am not at all techy so it took me a bit but anyway just a heads up for anything you buy, most likely it will need to be connected to a computer to access the internet to have it updated to the latest software version before you can put it to use.   If your truck is near empty, those tire pressures you listed are a very safe upper range pressures to carry the weight, both the front and rear as I know they could be run lower yet with an empty truck. And if its a trailer and not some motorcycle your going to strap onto the front of your truck on a rack, you shouldn't have a need to inflate your front tires if your at 55 front already, its the rear ones that would need more air if you have much hitch weight. 
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thank you, I'll check that Autel scanner out and see if it will work for me! Ya I can see GM's point of view if they lower the psi set value for someone and the person sell's the truck and the new owner puts the factory tires back on then their could be liability issues cause the psi warning light wasn't coming on when the tires were under inflated for towing their load and then it might be able to be traced back to GM lowering it.
    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      I had a similar but different response when I talked to the service manager where I bought my truck in that he said GM corporate won't allow them to lower the placard pressure setting as they would get their hand slapped but that of course they have the ability to make that change. His suggestion was simply go to a tire dealer or third party shop that is willing to reset the pressures lower. However I chose to buy a tpms tool and partly based off of this very forum as it had been proven to work on the 2024 model ( Global B system ) and while I could have paid lots for a full two way diag tool, I didn't want to spend that much and bought the recommended Autel TS 508 and it will reprogram the 2025 model and assume it should do the 2026 as well. However the tool is rather proprietary to reprogramming Autel tpms sensors so that is a function I will never use, where as a real two way scanner would have many uses but also have yearly subscriptions etc where this 508 is free updates for as long as they put updates out for the unit. In any event it worked to lower the placard pressures and I often use it to adjust my actual tire pressures although will check with a mechanical gauge as well sometimes just to make sure that tires tpms sensor isn't lying to me.    My suggestion is either buy a tool that you know will work to adjust the system or start out by getting the tire shop you bought your tires from to reset your truck and if after that you still want a unit to do it yourself, get one at that point. 
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Here is an image of a quick Google search about these tires on my truck and it's exactly same psi recommendation the Toyo tires company gave me!    I'm not looking for anyone else recommended psi or anything, I'm just looking to see if anyone knew a way to get rid of the factory low psi warning light, because I'm not running high psi and ruining my tires when I'm not towing! 

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