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Shake or Vibration Issues

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Jesse Davidson Enthusiast

Jesse Davidson

Posted
Posted

Pretty Much! Ford is selling the Ecoboost with same intentions/ thought process! Pick your poison?

and just want is wrong with the eco?

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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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Kickapoo Enthusiast

Kickapoo

Posted
Posted

Service manager keeps insisting it's tires. He did say that the body mounts and frame play into the vibration. Putting stock wheels and tires back on to rule the nitto g2's.

 

 

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Severado Enthusiast

Severado

Posted
Posted (edited)

Service manager keeps insisting it's tires. He did say that the body mounts and frame play into the vibration. Putting stock wheels and tires back on to rule the nitto g2's.

 

 

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Your tires only need to be road forced to their spec. After that, they have to prove your tires are actually the problem. Magnuson-Moss Act. The burden is on them. You can have upgraded shocks, a sway bar, tires, etc. They are avoiding any kind of discovery diagnostics and placing blame on the customer. It's BS, call GM or Chevy customer service, open a case, and gripe away.

Edited by Severado
Kickapoo Enthusiast

Kickapoo

Posted
Posted

Your tires only need to be road forced to their spec. After that, they have to prove your tires are actually the problem. Magnuson-Moss Act. The burden is on them. You can have upgraded shocks, a sway bar, tires, etc. They are avoiding any kind of discovery diagnostics and placing blame on the customer. It's BS, call GM or Chevy customer service, open a case, and gripe away.

I called gm this morning to open a case and I was asked what I wanted. I replied with a 60k truck that didn't shake.

 

 

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farml1234 Enthusiast

farml1234

Posted
Posted

Drove the Silverado to Columbus Ohio Friday was ok going down , only went up to 71 MPH on the interstate . Came home Tuesday morning truck running smooth at 70 MPH and decided to take her up , ok at 71 , took to 72 not perfect , took to 73 MPH and the steering wheel started shaking , went back down to 70 smooth again , back up to 73 MPH and shaking again !

 

I have been experimenting with my truck and know what is causing the shaking up front ! We all know that GM engineers read this form so I will wait to see if someone has the balls to contact me but I will not hold my breath !!!!!!!!!

 

I'm sure they will not believe what is wrong

Kickapoo Enthusiast

Kickapoo

Posted
Posted

Tech told me that gm wants tires equivalent to car tires (14 lbs road force?) and that is crazy for a truck. Update tomorrow.

 

 

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Severado Enthusiast

Severado

Posted
Posted

Tech told me that gm wants tires equivalent to car tires (14 lbs road force?) and that is crazy for a truck. Update tomorrow.

 

 

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Watch this.

 

14silverado4.3 Enthusiast

14silverado4.3

Posted
Posted

It is over for me also. The truck was nice but the non-ending vibrations and absolute feeling of wanting to drive off a cliff were too much.

 

Funny thing, driving a vehicle that does not vibrate -

 

I will continue to monitor and have saved all my reciepts for repairs / balancing on the silverado in case a class action is filed and these docs are needed.

LAShaker New Member

LAShaker

Posted
Posted

I have been following this thread for well over a year but this is my first post. I have had this dreaded vibration ever since my odometer turned 800 miles. It happens in the 40's and 70+. I drive mainly on the interstate, so I shake most of the time. My truck came with 22's and my dealer has replaced 11 tires and tried different rims with 0 success. They eventually put the 18" rims back on that the truck came with from the factory with Bridgestone AT tires. This reduced the vibes greatly but not totally. They have done the PICO and GM says it is "within spec". So I believe they have done all that they can do. I have driven it this way for about year. Last week I tried something that I had read on another forum. I put the truck in M5 and turned off grade braking. I have been driving it this way for just over a week on the interstate at 70+ speeds. Hardly any vibrations at all. My truck is tuned with an Intune so I've had AFM turned off for a while. My question is, what would cause the vibrations to disappear by driving in M5 with grade braking off compared to driving in D with grade braking on?

abominable z71 Enthusiast

abominable z71

Posted
Posted

If I had the budget, time, and the tools Gm engineers have, these vibration issues would be sorted by now!

 

However if they exist in the engine (v4-v8 mode) switch, transmission (shudder) from torque converter being locked up early for mileage claims, and possible a wierd transfer driveline imbalance.

They will not redesign internal hard parts at or nearing the end of model year run.

 

A successful company always, continuesly keeps improving their products. GM however is selling these trucks with full knowledge of these mechanical, and vibration problems.

 

I personally believe their is a stacking problem of critical rotating parts not machined correctly, add that to a high tensile frame, which allows frame beaming to occur and transfers all this energy to the cabin and passengers.

 

 

Thxs

Exactly the problem, tolerance stack that creates a vibration that matches the natural frequency of the truck at particular speeds which then resonates through the unforgiving frame. The problem is the vibration at least in my case and probably others is third order tire which isn't caused by a simple mass imbalance. Mass imbalance causes first order vibrations. It's why the problem isn't corrected by balancing. My tires are all road forced to below 10 lbs and the truck still shakes.

Drove the Silverado to Columbus Ohio Friday was ok going down , only went up to 71 MPH on the interstate . Came home Tuesday morning truck running smooth at 70 MPH and decided to take her up , ok at 71 , took to 72 not perfect , took to 73 MPH and the steering wheel started shaking , went back down to 70 smooth again , back up to 73 MPH and shaking again !

 

I have been experimenting with my truck and know what is causing the shaking up front ! We all know that GM engineers read this form so I will wait to see if someone has the balls to contact me but I will not hold my breath !!!!!!!!!

 

I'm sure they will not believe what is wrong

What do you believe is causing the front end to shake?

Severado Enthusiast

Severado

Posted
Posted

I have been following this thread for well over a year but this is my first post. I have had this dreaded vibration ever since my odometer turned 800 miles. It happens in the 40's and 70+. I drive mainly on the interstate, so I shake most of the time. My truck came with 22's and my dealer has replaced 11 tires and tried different rims with 0 success. They eventually put the 18" rims back on that the truck came with from the factory with Bridgestone AT tires. This reduced the vibes greatly but not totally. They have done the PICO and GM says it is "within spec". So I believe they have done all that they can do. I have driven it this way for about year. Last week I tried something that I had read on another forum. I put the truck in M5 and turned off grade braking. I have been driving it this way for just over a week on the interstate at 70+ speeds. Hardly any vibrations at all. My truck is tuned with an Intune so I've had AFM turned off for a while. My question is, what would cause the vibrations to disappear by driving in M5 with grade braking off compared to driving in D with grade braking on?

Torque converter + driveshaft + axle(s)​ + always engaged brakes = vibrations. So you take away the constant V8/V4 switching and engaged brakes. It feels normal-ish. You think what's left of the vibe you feel is road feedback. It's not. The culprit for many of us will be the pinion preload. This was discussed almost a year ago in another thread. GM hasn't addressed it yet. And they won't.
truckguy82 Senior Enthusiast

truckguy82

Posted
Posted

Have a '17 denali loaner today with 2k miles on it, 75mph it vibrates, so annoying and so worth getting out of the vehicle if they can't fix it. I feel for you guys, I would be so pissed if my new truck did this.

joshc64311 Enthusiast

joshc64311

Posted
Posted (edited)

If it is nothing more than pinion preload why would GM continue to ignore it ?

Cost and no safty issue, only problem they have is the customer complaints. The only way to fix it is to stop buying there product.

Edited by joshc64311

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