Shake or Vibration Issues

[GMCJOE17]

47 minutes ago, Roscopcoletrain said:

Kinda crappy you're stuck with the one type of tire

My thoughts exactly Rosco. GM makes a truck that is hypersensitive to tires and then wont warranty the best tires. 

 

This is also why I wanted to go to arbitration to be able to throw that in their faces. 

[Roscopcoletrain]

yeah, what if you need winter tires? 

[Dearmosd]

2 minutes ago, GMCJOE17 said:

Dearmosd, 

 

The dealers are at the mercy of GM for all warranty work. It has to be approved for them to get paid for warranty labor and parts. Luckily I had a really good service manager who made the world of difference in my case and I also shared the information with him on what I read on line on this site and others. If I were you I would start with the service manager, if you feel you are getting a run around then turn up some heat by placing a complaint with the BBB (https://www.bbb.org/). They will then contact GM who will assign your truck a case number and contact the dealer directly. When doing so, you will need to upfront state your case on what you are looking for whether it be a lemon law case or reimbursement for any out of pocket costs you spent on getting the problem corrected. The dealer will then have 14 days to correct the problem or report to GM that they can not repair it and then the lemon law will come into play. In my case I bought my truck used so I didn't qualify for the lemon law but I pushed for arbitration and they settled before it went.

 

Good luck and I'll follow your posts for sure! 

 

Joe 

 

 

Thank you very much for this issue. I just started communication with GM assistance support as I am in fear that my issues cannot be corrected. After the past week or two of reviewing as much as I could in reference to all the issues people are reporting the issues I have concern about my not be the same as others (Silverado vs Suburban) and if they cannot modify my vehicle to perform the way I would expect a $70k SUV should then I would like to talk to GM Assistance about buy back as over the last two out of town trips I have the issue with vibration on highway speeds but I also am VERY unhappy with how still the suspension is acting. Something I dont think I really learned on the test drive versus having enough seat time to experience the full expectations of the ride quality. My Suburban feels like my friends F250 Super Duty. But I have to give the Service Dept a change to address my concerns first before stepping up my complaints. 

 

I do know I will demand any before and after data for verification that the tests have been done

[GMCJOE17]

1 hour ago, Roscopcoletrain said:

yeah, what if you need winter tires? 

Good point! I'm sure GM would have a lame excuse back on that too.  

[Olvim]

Hey guys,

 

Wanted to stop back in and give an update on my truck. I got it back today after it spent another 9 days at the dealer. They still seemed stuck on tires even after I asked them to check hub/axle run out, drive shaft balance/run out, and rack and pinion angles. After I couldn’t get too many answers from my dealer, I kept my DMA’s cell phone number from my last visit and gave him a call - we had a good talk for about 30 minutes. The approach they were about to take was to get 4 pre-engineered factory tires from GM. Mine came with blackwall Goodyear Wrangler SRAs initially, but they were immediately replaced due to flat spots with whitewalls. The dealer and the DMA told me the tires from the factory were better quality than those from the supplier. I informed them I was fine with this approach, but I wanted to know what I was supposed to do when I did wind up needing new tires. I also expressed my concern that what I asked to be checked had not been over the previous week. 

 

At this point, the DMA leveled with me and said GM is well aware of this thread (I mentioned it specifically) and of the sensitivity issues of the K2 generation. He said the truck is like a giant tuning fork, and anything that is slightly out will set it off, especially in the 73mph range. He told me a ton of engineering has gone into the 2019s to alleviate these issues. He also told me that since this generations inception, he’s never seen hub/axle run out on a single Silverado he’s looked at since 2014, and he told me there have been hundreds. He said each vibes a little different, and that mine is actually quite smooth (of course, as a 2018 model I benefit from having all the TSB updates already handled at production). In short, he told me it’s been tires on EVERY single Silverado or Sierra he’s ever looked at. He also clarified my vibrations. I told you guys in my previous post that the dealer told me I had a T3 vibe at about 20mg. The DMA confirmed with me that the tech at the dealer put the receiver for the PICO scope in the REAR of the truck, when my vibes were in the steering wheel. When the DMA and GM engineer corrected the issue, placing the receiver on the steering wheel as per the instructions on there PICO scope and GM’s guidelines, they found I had a T1 vibe that would sometimes see spikes in T2. Due to this, two tires were replaced (previous visit). I thanked him for all the info and his help, and he committed to drive out and take my truck for a spin that same day (yesterday).

 

About an hour after I talked to the DMA, the dealer called me and said that they had a tech from Hunter out to give training on the Road Force Balancer that day. They used my truck as the training vehicle. The tech from Hunter IMMEDIATELY found that all FOUR of my tires were improperly road force balanced and way out of spec (which IS 15lbs). Two were so bad they had to be replaced AGAIN (that brings my tire count up to 17). The Hunter tech apparently worked some magic and got my tires down at RF: 10lbs, LF: 15lbs, RR: 3lbs (amazing), and LR: 10lbs. He took the truck for a ride first and balanced them

while warm. He also “massaged the bead” and did some other tricks to get a true reading. 

 

I picked up the truck this morning and drove 20 miles on the highway into work going the long way. I IMMEDIATELY noticed the difference. Still a few minor vibes over the first 5-8 miles, but totally disappeared once he tires heated up (truck sat outside in 30 degree weather last night at the dealer, so probably some flat spots). I have to drive to Detroit later this evening and will be able to get a better sense as to if this issue is resolved or not, but I can tell you guys that what I was feeling before has been eliminated THUS FAR. It is smooth as glass up to 85.

 

In short, it seems it was tires and that GM knows they made the most sensitive truck on the market from 2014-2018. After seeing GMCJoe’s success, among others, with the dealer putting on Michelin’s, I asked my DMA to do the same for me (this is before I picked up my truck this morning). He told me there is a federal law (The Tread Act) that prohibits them from doing that and that GM can only put on tires engineered specifically for the vehicle at OEM specs. So for those of you who swindled Michelin’s, I applaud you - I couldn’t get them to budge. 

 

Anyway, seems to me that LOTS of people

hit the nail on the head with this. GM Dealer techs CANNOT and DO NOT do a quality job of road force balancing tires. I am SO glad the Hunter tech was there to road force balance my trucks tires and that I just so happened to have it at the dealer when he showed up. I’ll report back once I’ve driven some more miles, but as of this morning, my vibrations seem to be resolved and it WAS tires afterall. 

 

P.S. - I asked the DMA what tire I should replace the Goodyear’s with once it comes time to avoid this BS again. He told me another set of Goodyear’s. I literally and audibly laughed on the phone. 

 

Hope you guys are making progress, and I hope this was my last dealer visit until I get my FIRST oil change. 

 

Total visits for resolution: 7

Total days at dealer: 44

End cause of vibes: SHIT tires and POOR GM techs that had no idea how to use the Hunter Machine

Edited November 8, 2018 by Olvim

[tnchevy]

I think you put too much trust in what GM tells you.  There is no such thing as "better quality" tires that GM keeps over what Good Year factory produces and never trust the dealership to do anything right.  The SRA's are some of the cheapest tires out there for a reason but GY does make some excellent tires but like most things in life they will cost you more. 

[Olvim]

19 minutes ago, tnchevy said:

I think you put too much trust in what GM tells you.  There is no such thing as "better quality" tires that GM keeps over what Good Year factory produces and never trust the dealership to do anything right.  The SRA's are some of the cheapest tires out there for a reason but GY does make some excellent tires but like most things in life they will cost you more. 

I fully agree with you. Not a snow ball’s chance in hell I put SRAs back on my truck again once these are burned. 

 

As as far as trust in the dealer techs, that was lost long ago. No reason an issue like this should’ve taken 7 visits and 44 days. For me, it was simply a matter of principle. I was not going to pay for a service that I shouldn’t need to do on a brand new vehicle. Of course, there’s always cost reward. Would’ve saved a lot of time had I just went out and got quality treads. 

[GMCJOE17]

13 hours ago, Olvim said:

 

OLVIM,

 

I feel your pain brother, glad that you are back in your truck and I know its weird being out of it for so long you almost forget what it was like driving it. At first you are over sensitive to any bump or poor road surface, I keep expecting it to come back and wonder what will bring it back... when the heavy gas tank is empty, a cold night, a warm day?

 

I've driven mine almost 500 miles since I got it back (mostly highway) and all is still good. Little did we know that when GM designed the K2's this is what was on the white board:

 

 

 

GMCJoe

 

[GMCJOE17]

I've put 500 Miles on my truck since I got it back and all is still ok with it and today I got a check from GM with a letter that said it was a "Goodwill adjustment". So with the truck back and everything settled with GM, I am now free to decide if I will stay in this truck with 18'500 miles on it or cut my losses and trade it for something more... eh.. stable? I think the only other truck I would be comfortable buying would be a Toyota Tundra. 

 

I just don't have a warm fuzzy feeling and fear this headache will come back and to be honest, Life's too short!

 

I've been a GM guy for most of my life, 1st car was a 69 Caprice, I've owned many GM's and as for trucks... a 04 Z71 Avalanche and a 11 LTZ Avalanche both had more than 1/2 dozen recalls and had little issues that were never quite right. The 2011 had a windshield howl on the highway that they could do nothing about and the 04 had trammie issues and spent a lot of time at the dealer. Neither of those issues were as annoying as the vibration on this 2017. I wont go as far as saying that I wont own another GM in my life but this experience has been a pretty big disappointment overall. 

 

I do feel for everyone still going through the process of identifying the vibration issue and hope that they will figure some kind of true fix to this mess other than replacing tires until it goes away. 

 

Joe  

[Rolling Thunder]

Goodyear SRA's

 

My truck came with the 20" chrome wheels and Continentals.  Three months after taking possession of it I bought a full set of the ZR71 aluminum wheels from a dealer who installs lift kits, I don't like the chrome wheels.  Being concious of the vibration problem I had my independent tire place balance the factory 18" Goodyears.

 

Before they started I asked the owner 'How good is the factory balance' and he said "Usually pretty good."

 

The balance was NOT a road force but a conventional balance:  Two wheels took 2.5 oz, one wheels took 1.25oz and the last wheel was OK.  Two and a half ounces is a LOT.  So off I went after spending $50 for my own satisfaction and it was probably a good thing I did.  I have had no issues with the factory Z71 18" Goodyear SRA tires whatsoever.  They have been to Florida and Alabama with no vibrations whatsoever on the 70+ MPH Interstates and my truck didn't have any vibrations with the 20" chrome either.

 

These last few pages have brought another factor into this whole 'road force' and tire balance/vibration issue:  How competent and how well trained are the dealer techs using the machine?  It's not nuclear physics to use one but it does take some practice and training.  Does the dealer even HAVE a machine when they claim they did a 'road force' balance.  Has everyone SEEN the machine at their dealer's when they claim a 'road force' balance was done?

 

[jagabom (Esquire)]

I totally understand what you are saying GMCJOE17.  If you think that feeling will never go away, might be time to change.  Keep us abreast. 

Jim

[Snoringbear]

On 11/8/2018 at 10:07 PM, GMCJOE17 said:

OLVIM,

 

I feel your pain brother, glad that you are back in your truck and I know its weird being out of it for so long you almost forget what it was like driving it. At first you are over sensitive to any bump or poor road surface, I keep expecting it to come back and wonder what will bring it back... when the heavy gas tank is empty, a cold night, a warm day?

 

I've driven mine almost 500 miles since I got it back (mostly highway) and all is still good. Little did we know that when GM designed the K2's this is what was on the white board:

 

 

 

GMCJoe

 

You nailed it.  I made the same observation a few hundred pages back.  The Frame acts like a huge tuning fork and any number of problems can create a harmonic condition.  Ford has dealt with this by installing a large “rubber” pad between the frame rail and bed on both sides.  Also, aluminum doesn’t carry vibration as well as steel, one of the few advantages along with weight it has over steel.  I’ve been monitoring a 2019 Silverado forum to see if any Chevy Shake posts have been made.  To date, haven’t seen any.  So maybe GM engineering have solved the problem for the 2019 models.  Hope so.

[Snoringbear]

15 hours ago, Rolling Thunder said:

Goodyear SRA's

 

My truck came with the 20" chrome wheels and Continentals.  Three months after taking possession of it I bought a full set of the ZR71 aluminum wheels from a dealer who installs lift kits, I don't like the chrome wheels.  Being concious of the vibration problem I had my independent tire place balance the factory 18" Goodyears.

 

Before they started I asked the owner 'How good is the factory balance' and he said "Usually pretty good."

 

The balance was NOT a road force but a conventional balance:  Two wheels took 2.5 oz, one wheels took 1.25oz and the last wheel was OK.  Two and a half ounces is a LOT.  So off I went after spending $50 for my own satisfaction and it was probably a good thing I did.  I have had no issues with the factory Z71 18" Goodyear SRA tires whatsoever.  They have been to Florida and Alabama with no vibrations whatsoever on the 70+ MPH Interstates and my truck didn't have any vibrations with the 20" chrome either.

 

These last few pages have brought another factor into this whole 'road force' and tire balance/vibration issue:  How competent and how well trained are the dealer techs using the machine?  It's not nuclear physics to use one but it does take some practice and training.  Does the dealer even HAVE a machine when they claim they did a 'road force' balance.  Has everyone SEEN the machine at their dealer's when they claim a 'road force' balance was done?

 

I did a search to learn more about road force balancing and came across this informative post by Discount tire. Have to say that I’ve been doing business at the same DT store for almost twenty years and have bought more tires there than I can count and have not as yet had a single issue.  Last tip; I run only Michelin tires.

[Snoringbear]

Just now, Snoringbear said:

I did a search to learn more about road force balancing and came across this informative post by Discount tire. Have to say that I’ve been doing business at the same DT store for almost twenty years and have bought more tires there than I can count and have not as yet had a single issue.  Last tip; I run only Michelin tires.

Opps, here’s the Discount Tire article ?...

https://www.discounttire.com/learn/road-force-balancing?cid=06f4c9fe-2bf1-428e-83e8-c259180a513e&utm_source=bing&utm_medium=cpc&utm_term=discounttire&utm_content=76690961660782&utm_campaign=Dynamic Search Ads&msclkid=1c35a09e1ef21fafb575fb78d6953842

 

[jlozzi]

I have been following this thread for 3 years now and it seems that they (GM) haven't been able to correct this issue at all. I too had a 15 that was shaking all over the place and the dealer bought it back from me and then I got a 16 and that one seemed fine and now I have an 18 and I am back in the same boat.

 

Has there been any talk about a class action lawsuit about this issue?

 

As a side note, my 16 had Micheline tires on it and the 18 has the Goodyear's and i am on set # 2 of the same crap tires, the truck just turned 1000 miles. 

 

Love the truck.. hate the Chevy shake.