Jump to content

Recommended Posts

Posted
1 minute ago, SS502 said:

Seems plausible but it also seems like a sales pitch for a $399.99 app for your cell phone. I’m skeptical ? 

Asking my mechanic about it.

I noticed when I put the transfer case in auto the vibes are greatly reduced.

Anyone tried this?

Posted
3 hours ago, SS502 said:

Seems plausible but it also seems like a sales pitch for a $399.99 app for your cell phone. I’m skeptical ? 

Yeah, I wouldn't trust that app to diagnose the shake on these trucks. I have an EVA that shows my shake as being a first order tire vibration. Problem with that is the same vibration exists and I've ran three different sets of wheels/tires, two sets of axles and replaced a 4 rotors on a vehicle with less than 20k miles put on it in over three years.

 

Would cost less to buy a used EVA or pay the dealer to run the pico to get you the vibration frequency and then try and track it down from there. But there are still no guarantees.

  • 5 months later...
Posted (edited)

Just as a heads up to this Soga 

I went to dealership to get an oil change and a tire rotation.  I’m at 56,000 miles and when I drove off I got on freeway and a shake that y’all are talking about was present.  I let the service writer know right away.  He stated maybe the tires need to be balanced.  3 shops and a brand new set of tires later still have a shake.  So then I’m really confused so take to a shop that has really good reviews and I’m explaining my story and he tells me let’s try and figure this out.  I said ok.  After about 30-40 mins he comes back with a caliper type thing on the drive shaft and shows this drive shaft is egg shaped now.  

 

Not or sure if it was a coincidence or just happened but to not have this issue and then find my drive shaft is bent I am pretty proplexed and will be talking with dealership on Monday.  Will report back if this fixes the issue.   

A7A838D0-F966-4E64-9875-40DE2C2806A8.jpeg

Edited by Csjumper2003
Posted

Talked with dealership and showed them the video.  Truck goes under the knife on Monday.   I will report back when I know more

  • 4 months later...
Posted
On 3/7/2016 at 9:28 PM, abominable z71 said:

This confirms something for me, my suspicion has been that these truck resonate at 39 Hz which means even slight disturbances can cause vibration issues. Which for tire speed peaks at about 75 mph. or 3 times the rotational speed of the tire. Because the rear end ratio is 3.42 in your truck the drive line angular velocity is approximately 39Hz at 65 mph. Confirms the problem is resonance and the body mounts like to transmit vibrations in the 39 hz region. Like you said the dent looked so minor you wouldn't think it would cause issues but if you have a resonance situation even something minor makes it way through. Thanks for the info

But would this still occur at lower speeds?  Mine shimmies at 20-25mph and again 45-49mph.  My 2014 Silverado has been in 3x now. Replaced the torque converter and not fixed.  Today the service dept said they had 3 other Silverados in with same problem and none of them exhibited the vibration/shimmy including mine.   At this point I am not happy that this problem continues to be undiagnosed.  

  • 4 months later...
Posted

Has anyone on here had more “mild” vibrations at 70 and it worsen at 80+? Mine isn’t bad at any other speed Really. Pretty much 75 to 85 is the worst. I’m trying to weed out the “all speed ranges” vibration guys and the 70-80 guys that have fixed their issues. 

Posted
On 5/13/2019 at 3:49 PM, Csjumper2003 said:

Talked with dealership and showed them the video.  Truck goes under the knife on Monday.   I will report back when I know more

Bump 

  • 1 month later...
  • 3 months later...
Posted

I own a 2018 gmc sierra 1500 6.2 that I purchased new. All was going well until at approximately 23,000 miles the truck started vibrating. It is noticeable at speeds over 35mph. The sensation is like driving over rumble strips. The steering wheel shakes quite a bit. This is not constant. It comes and goes.  The dealership told me the cause was 2 front wheels that had dents. They balanced all 4 wheels and put the dented wheels on the back. That did nothing. I am now reading that it could be the transmission. I hope this is not going to be a fight with the dealership. I hope to get this squared away before the warranty expires. UGH

Posted

2018 w/ 8 spd?   if so trans could likely be issue.

 

as could the torque converter.   dealer should know the TSBs for them

  • 8 months later...
Posted

Was the new drive shaft aluminum or steel ? And was a regular drive shaft or a 2 piece? I’m having the exact same symptoms.

  • 6 months later...
Posted
On 3/7/2016 at 8:57 AM, Bowtie619 said:

Hey guys,

 

I posted in the giant thread about my fix but I'm sure it's already gotten lost. I think this is important to at least have floating somewhere for someone to search.

 

Symptoms: At 60-70mph I was experiencing a severe shake/vibration. I could usually push 

Was your replacement driveshaft steel or aluminum? 

  • 1 month later...
Posted
On 11/24/2016 at 7:39 AM, dodge stomper said:

I drive a 2016 Silverado LTZ 4wd

 

I recently fixed my vibration issue, I found it was a faulty Torque Converter... It shuttered and shook at different speeds but not constant. GM warranty replaced TC and balanced tires and all Vibration was gone... I now love my LTZ....

 

PLEASE for those feeling my frustration check this out. I was about to use the OHIO lemon law to dump this truck but now all is right in the world again. If you need to PM me and I will scan and send the GM repair order.

 

Also IF your a internet surfer please spread this word as I am not going to, but felt it my responsibility as a Chevy Truck guy to post this.

 

Best DS

 

On 11/24/2016 at 7:39 AM, dodge stomper said:

I drive a 2016 Silverado LTZ 4wd

 

I recently fixed my vibration issue, I found it was a faulty Torque Converter... It shuttered and shook at different speeds but not constant. GM warranty replaced TC and balanced tires and all Vibration was gone... I now love my LTZ....

 

PLEASE for those feeling my frustration check this out. I was about to use the OHIO lemon law to dump this truck but now all is right in the world again. If you need to PM me and I will scan and send the GM repair order.

 

Also IF your a internet surfer please spread this word as I am not going to, but felt it my responsibility as a Chevy Truck guy to post this.

 

Best DS

Any chance that you might still have that GM Repair Order that you had mentioned in this post from way back when?

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

    • I agree.   However, the owner's manual, suggests that a drop over full is just as bad as a drop under. (Read black and white letters only, insert no common sense.)
    • That P0700 and loss of power suggests something significant is amiss to me.   More/other codes may suggest otherwise; I would investigate those prior to spending the money to change fluid on a transmission with a bad torque converter.    The relatively sudden escalation of symptoms to me suggests that something began failing (initial shuddering experienced) and rapidly deteriorated (slipping/loss of power). Fluid condition alone wouldn't cause the sudden escalation of problems - though it might have been the cause of the deterioration up to the point of failure.
    • Stabilitrack operation is in a sense a separate/independent operation from the operation of 'traction control'. Stabilitrack is used to keep the vehicle traveling in the DIRECTION intended, it can brake independent wheels and or adjust throttle to influence the direction the vehicle is moving.   This can be illustrated by a 'fish-tailing' example. At high speeds, if the stabilitrack detects excessive yaw (the vehicle spinning like a top, it has a sensor for this), based on inputs from steering angle it determines that the vehicle is spinning out of control, and begins working to control that unintended spin. By reducing throttle input or braking specific wheels to control or prevent the spin.   The traction control works similarly using the ABS system to slow spinning wheels and thus transfer power to 'other' wheels. The goal being to achieve wheel speeds that are all in agreement with each other, the truck then assumes that since all the wheels speeds are the same no spinning is occurring. For example, launching up a wet boat ramp, there is no excessive yaw present, traction control alone can manage the wheel spin by braking spinning wheels and cutting throttle.   Stabilitrack and traction control from a hardware and software standpoint are basically one in the same, I don't remember specifically in 2004, but you couldn't get a truck with one and not the other. The switch on the dash, could turn off the traction control, but not necessarily the stabilitrack.    A confusing comment about stabilitrack vs. traction control, the same components serve both operations, but marketing could advertise them as two separate features.    The AWD system is another separate system entirely, in addition to the other two, it uses the same wheel speed inputs but can also vary the transfer case clutch application to direct some power to the front axle, working in conjunction with the traction control to bring wheel speeds together.   The power split will never be greater than 50:50, the same as 4-high. It will never direct MORE power to the front axle than the rear.
    • Not based on the new photos I'm seeing.  Car and Driver posted additional photos that shows an auto stop start button left of the steering wheel.      
    • Car and Driver is reporting wireless CarPlay WILL remain, and they posted several additional photos, including a left knee shot, but the only hard buttons there are e-brake, auto start stop, tailgate and cargo light.  Also definitely looks like High Country and ZR2 get micro fiber on the center of the console lid and the ZR2 possibly also on the seats.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...