Shake or Vibration Issues

Barak · October 4, 2018

Well let me say this. My cousin and I actually purchased 2 GMC trucks together at the same time. Difference is his is 2019 but has same tires on as my. I took it for quick ride but didn’t have a chance to go 73-75 mph yet and didn’t feel vibration/shaking however I do plan to get with his on thruway just to troubleshoot and see. If his doesn’t have it, I will be back with my to ask for different set of tires or go to firestone or some other tire specialist to perform road force after explaining my experience and scapulation that dealership may not be as experienced techs.

GMCJOE17 · October 4, 2018

4 minutes ago, Barak said:

Well let me say this. My cousin and I actually purchased 2 GMC trucks together at the same time. Difference is his is 2019 but has same tires on as my. I took it for quick ride but didn’t have a chance to go 73-75 mph yet and didn’t feel vibration/shaking however I do plan to get with his on thruway just to troubleshoot and see. If his doesn’t have it, I will be back with my to ask for different set of tires or go to firestone or some other tire specialist to perform road force after explaining my experience and scapulation that dealership may not be as experienced techs.

Let us know how it turns out, will be interesting to hear what happens. Good luck!

GMCJOE17 · October 4, 2018

Got a text back from the service manager at the dealer, he said they have a good set of 4 new tires on the truck now and all are road forced at an amazing 7 lbs. He said he will wait until the morning rush hour dies down and then take it on the highway.

I get a call an hour later and he says the vibration is still there. He said sure enough right at 70 mph it starts shaking and that he thinks its a bent axle. He asked if it vibrated with the original set of tires and rims and I said yes, and that's why I got the new set of 20's. This is also why I tried to tell you guys that I didn't think it was the tires causing the problem. I imagine they helped some but it sure felt like a drive train issue to me.

Will see what he comes back with, hopefully they find it.

GMCJOE17 · October 4, 2018

Got another call from the service manager, he said they took my tires and rims and swapped them with a new truck and drove both. Mine still vibrated and the new truck was fine with my wheels and tires. I thought we were over the rims and tires after this morning but I guess its what GM made them do.

He said he has the truck with his "rear end guy" (If I were him I'd totally fight against that name) and they are going to pull the rear axle out to check for anything warped. I thanked him again and told him I am still in their loaner and he said its fine and that this is under the clock and they need to work on it asap. Quite the different outlook from when I was first called back to the dealer and told its your tires, the truck is fine - come pick it up.

I remember when I filed the BBB case, it said that once this is in the dealership they have 14 or 17? days to respond to the case. They are really good in helping consumers with issues like this against large corporations. I am glad the dealer is actively trying to repair the truck and its over the 10 days of finger pointing the tires as the issue. IT'S NOT THE TIRES!

Will find out more going into the weekend.

Bart’s Silverado · October 4, 2018

I've got $20 That says it is the driveshaft!!! See my other posts.

GMCJOE17 · October 5, 2018

2 hours ago, Bart’s Silverado said:

I've got $20 That says it is the driveshaft!!! See my other posts.

I kind of thought Torque converter Bart, but it very well may be the drive shaft. I heard GM makes the driveshafts from a 1/2 roll of Reynolds Wrap Tin Foil.

Maybe GM's troubleshooting list is to go from the cheapest thing to the most expensive. Tires, rear axle, drive shaft, trannie?

Edited October 5, 2018 by GMCJOE17

SkiDooNick700 · October 5, 2018

I've recently noticed a very random pretty aggressive vibration in my steering wheel (it vibrates the entire wheel and steering column) for roughly 1 to 2 seconds at a time. I have noticed it mostly at speeds of around 40 to 65 or so mph. I am unable to duplicate the issue. It just started doing it within the last few hundred miles. Sometimes I feel its a bump in the road that triggers it, but I actually just experienced it while driving on a smooth asphalt road... I thought I was driving over a series of rumble strips, or like the road had some serious washboard. Again, the vibration is literally only in the steering wheel and column. I don't feel it anywhere else.

Anyone ever heard of this?

GMCJOE17 · October 6, 2018

1 hour ago, SkiDooNick700 said:

I've recently noticed a very random pretty aggressive vibration in my steering wheel (it vibrates the entire wheel and steering column) for roughly 1 to 2 seconds at a time. I have noticed it mostly at speeds of around 40 to 65 or so mph. I am unable to duplicate the issue. It just started doing it within the last few hundred miles. Sometimes I feel its a bump in the road that triggers it, but I actually just experienced it while driving on a smooth asphalt road... I thought I was driving over a series of rumble strips, or like the road had some serious washboard. Again, the vibration is literally only in the steering wheel and column. I don't feel it anywhere else.

Anyone ever heard of this?

Nick, you may have the power steering recall issue - see this post:

WhineyTTwins · October 6, 2018

So far, I've owned the truck for 63 days and it just completed its 49th day in service. Vibration has gotten better from the countless road force balances and but now it's in the steering wheel where I feel it the most. I am starting to think that the Z71suspension and tire package is contributing to alot of what I am feeling. Regardless, swallow your pride and buy something else. I still haven't washed my truck once because I haven't had it in my possession long enough.

Bart’s Silverado · October 6, 2018

It's the drive shaft. See my other posts.

silveradosid · October 8, 2018

bart has a valid point i gave up on gm who told me they had checked the driveshaft and it wasnt the problem i had the driveshaft checked at an independent shop and they told me it had 32 thou run out i put a new driveshaft in and it has reduced my vibrations to the point that i actually like to drive my truck again

Loco-diablo · October 8, 2018

How many built vs. how many shakers? My 14 at 50k miles is a total success. Shook, fixed, end of story. I've talked to many owners (mostly at gas pumps) and NEVER FOUND ONE WHO HAD A SHAKER.

Sent from my SM-G935V using Tapatalk

Many of them shake. My buddy has a 17 Denali 3/4 ton diesel and a 2017 1 ton dump. Both shake at around 73/80 mph.

Another friend owns a 2014 high country 1/2 ton. It shakes too...

On the other hand, my 2017 LT+ midnight 1/2 ton has no shake.

It affects a LOT of them .

I’m very curious about the 2019’s.

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yojo · October 9, 2018

14 hours ago, silveradosid said:

bart has a valid point i gave up on gm who told me they had checked the driveshaft and it wasnt the problem i had the driveshaft checked at an independent shop and they told me it had 32 thou run out i put a new driveshaft in and it has reduced my vibrations to the point that i actually like to drive my truck again

Factory trained techs....cant ck a driveshaft or use a tire balance machine correctly(go figure) where did you get your driveshaft from?

GMCJOE17 · October 9, 2018

Dealer had my truck all weekend and I get a text at 5:45 today saying "Sent some data to GM they should get back to us by Wednesday on the next step we don't see any bent axle shafts"

Which was interesting because it took them 4 days to tell me the axle was not bent and they just stopped diagnosing the problem. I have the feeling they may have gave up and are either trying to push it into a lemon law case or they are going to try to play the "its within GM specs" like I have read other truck owners write on forums. Which I guarantee its not within specs with the amount it vibrates. Pretty crappy specs if that is the case.

I know everyone says all manufacturers have product issues but I've never seen Toyota or Lexus service just give up like GM has. Will wait and see what the message is on Wednesday.

Lets see if GM will get the poop emoji or fix the damn thing.

Barak · October 9, 2018

So went back in to dealership due to shake/vibration at 70-75mph speeds. They examined everything on truck including taking it for a ride prior and after and couldn’t duplicate what I told them my issue was. Basically they said that they let some air pressure out of rear tires to make ride more comfortable otherwise they feel truck is within “GM’s specs”. After our conversation they did tell me to continue monitoring and certainly let them know if it changes like gets worst. They did also say that I will feel little stiffer and possibly shaky/vibration at instances due to heavy duty truck especially being diesel etc... I do get that aspect and I told them interesting to learn that for high end expensive truck. I did indicate to them that when at 55-65mph speeds, the truck rides smooth no shakes or anything but as soon as I am on thruways/highways at 70+mph it tends to pick up. My next step is continue driving and monitoring to see if any changes occur but did tell them I will be taking my cousin’s 2019 year model same exact truck on same roads to see if his exhibits the same shake/vibration at any speeds. Stay tuned!