Denali 22” Tire Vibration @ Highway speed

[Dnt]

Took the truck into the local Firestone tire shop they had a hard time getting the replacement tires and only came up with 2 replacement tires after two weeks. I was told that this Bridgestone Alenza 22" tire is a New design and hard to get?  

1 out of 2 of the new ones was just a bad as the RR at 52 Road Force. They used the (1)  "good" new one and got it and all others under 30 on the road force. It was an improvement but the truck still has a slight shake. I was told that this is the best it will ever be with these particular tires? I now will have to decide if I want to try a set of Michelins / put up with shaking and keep driving or sell the silly truck and just drive a 10 year old beater ride all the time........... 

First 55k takes it home! let me know who wants it......    

 

 

[Zach-91]

That's frustrating. I got word on Friday that GM approved for me to get a new set. Just waiting on them to setup the appointment and let me know if I can choose the tire or if I'm stuck with exact replacements. 

[JimCost2014]

When I take my Alpha Husky to the vet and he tries taking her temperature (you know where), she sits down and growls at him, so they come up with a different plan because she is the customer!

 

Do not roll over and piss yourself and let GM drag their feet if you are unhappy!!! Make calls, let the dealership and anyone listening at GM know how unacceptable this is and make them fix the problem!!!

Edited March 8, 2020 by JimCost2014

[hotrodz37]

I have a Denali as well, so please don’t take this the wrong way. You are never going to be happy with the Bridgestones, they are subpar tires. I know out of principle we should be able to make the dealer be responsible for the fix but the fact is they never will be. Most of you who can afford a Denali know the concept of time is money. My vote is you get a set of Michelin’s and move on with your life. Should we have to fork out another $1k on tires on top of an already expensive truck, no, but that’s the reality of the situation. On top of that, even if the dealer could get a set of good tires, they probably wouldn’t be able to balance them properly. Get the Michelin’s from discount tire, at least they stand behind them and will make it right if the new tires don’t fix your issue.


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[JimCost2014]

4 minutes ago, hotrodz37 said:

Get the Michelin’s from discount tire, at least they stand behind them and will make it right if the new tires don’t fix your issue.

Did that with our 16 Tahoe, best move we could have made. But the factory Bridgestone's were pretty much shot in less than 40000 miles, so the choice was a lot easier.

[MTU Alum]

On 2/23/2020 at 6:15 PM, hotrodz37 said:

Road force balancing measures radial runout which measures the roundness of the tire. LT tires should be under 30 I believe and our trucks under 20 or 15 if I’m not mistaken.

 

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30 to 35 lbs on p or hard metric tires.  45 to 60 lbs on lt tires.  Road Force goes up 7 to 8 lbs per 10 psi increase in tire pressure.

 

#iworkforGM 

Edited March 9, 2020 by MTU Alum

[hotrodz37]

30 to 35 lbs on p or hard metric tires.  45 to 60 lbs on lt tires.  Road Force goes up 7 to 8 lbs per 10 psi increase in tire pressure.
 
#iworkforGM 

That is PSI correct? We’re talking about road force runout here.


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[MTU Alum]

32 minutes ago, hotrodz37 said:

 

That is PSI correct? We’re talking about road force runout here.


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I listed the road force number limits.  LT tires are determined by pressure because road force increases with pressure.  

 

#iworkforGM 

[hotrodz37]

I listed the road force number limits.  LT tires are determined by pressure because road force increases with pressure.  
 
#iworkforGM 

Yikes, no wonder our trucks shake. Those limits are far from acceptable.


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[MTU Alum]

The specs are fine.  They are same or lower than any of ram or ford specs.  These are the limits and majority of asms are lower.  

 

There is a bigger problem with getting a quality shake analysis and tire balance from dealer.  

Edited March 10, 2020 by MTU Alum

[Zach-91]

Finally got approval to have my tires replaced. Attached are the notes from the service. Still don't entirely understand the lbs unit of measure but am happy that with a max of 22 the vibration is not felt in the cab anymore. 

[Dnt]

I really appreciate everyone's input. I will probably end up just ordering a set of Michelin's and moving on.

Right now I am dealing with Hail damage from a recent storm, adjuster was out today and estimated it at $2,500.00. Looking for the best PDR outfit in town right now...............sometimes it just feels like a new vehicle is more trouble than it is worth.

 

Might be best to just  "DRIVE A BEATER"  Haha

[hotrodz37]

Finally got approval to have my tires replaced. Attached are the notes from the service. Still don't entirely understand the lbs unit of measure but am happy that with a max of 22 the vibration is not felt in the cab anymore. 

What’s crazy to me is the horrible road force numbers these trucks are coming from the factory with, wtf? I guess you get what you pay for (Gm pays for) tire wise in this case.


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[Zach-91]

10 minutes ago, hotrodz37 said:

 

What’s crazy to me is the horrible road force numbers these trucks are coming from the factory with, wtf? I guess you get what you pay for (Gm pays for) tire wise in this case.


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To be fair, these numbers were before the original road force. After they road forced the old set they were around 30 and below but i think they told gm this to get approval 

[flyingfool]

are the tires REALLY out of balance or is GM still using the defective torque converters in the driveline 

this has been an issue since 2014 ... GM is squeezing suppliers for cheaper components and the suppliers are delivering cheap parts

Edited March 19, 2020 by flyingfool