JToups386

I in no way think the tire replacement will fix all the problems. I'm simply encouraging people to push that particular issue first as it's the most obvious and simplest fix (when it works), yet GM will not voluntarily replace tires until at least one or two road force balancing services. I had to insist to my dealer that I would not take the truck home until they either replaced the tires or resolved the issue, regardless of how long it took. I was fortunate that they determined I had one tire that completely trashed, and for the most part it fixed my issue. However, I still think the truck rides worse than previous year GM trucks, and any of their current competitors. It is very clear these new platform trucks are plagued with problems and design flaws. If I had to do it all over again I would've never bought this truck, and I made the rookie mistake of buying a new model year platform before it had been real-world tested. Most of us who bought our 2014's in 2013 have suffered from this mistake. I even noticed both of my loaner trucks had an annoying vibration when driving them. They were both 2WD and my truck is 4WD, so the problem isn't specific to a particular drivetrain. GM has a major problem with this new platform but chose to release it anyway, and now many of us are victims of their decision. What's worse is that no-one in their technical services seems to have been able to define the exact issue(s) to develop a proper resolution. Or, they may know what's wrong but choose not to fix it because of the major costs involved, and therefore they'll only address the most persistent customers in a case by case basis. Welcome to the new GM...

I didn't update the latest resolution to my shake/vibration, so here it is. As I had stated before I think the Goodyear tires GM uses are absolute crap. Goodyear obviously can make very good tires since they're the sole supplier to NASCAR and NHRA, but it is apparent to me their mass produced fleet lines such as those bought by GM are very inadequate. I hated my 2014 Sierra All Terrain for the first 9 months of ownership and was ready to trade it in due to the horrible ride and multiple other issues and the constant recalls. The dealership had road force balanced my tires based on my first complaint about the vibrations and rough ride. It seemed to help by in no way resolved the issue completely. Soon after the ride got much worse, and constant. There were times it was so bad it felt like it could shake the fillings out of your teeth. I drove it like this for a while simply because I was tired of needing to go back to the dealer continually to address all the truck's issues. Finally I had enough and took it in. This time they determined it had a bad rear tire and even told me they should've replaced it the last time it was in, but GM's policy is to road force balance first and hope that resolves the issues rather than doing the right thing up front. My dealer told me they have had numerous complaints like this and have replaced numerous tires to fix them. So, it's clear GM corporate knows they have bad tires on their vehicles, but in their typical fashion they'll avoid fixing it correctly until their hands are forced. Many people probably just accept the fact that it's a truck and rides horribly. I however know better, and will not accept the crap GM tries to pull on its customers. The truck certainly doesn't ride super smooth and based on what I've read that likely has to do with the stiffness of the current version of the Z71 package. But, by having the tire replaced it made a big difference. Now I at least don't get mad every time I drive the thing. I certainly miss my AMG Mercedes and the level of service I would receive at a MB dealership. They never tried to do the cheap fix on anything. They'd replace entire systems without question in order to make sure it was done right the first time. GM on the other hand seemingly will avoid financial responsibility and do whatever they can to not incur costs until you lean on them hard enough. I would think GM has grounds for a suit against Goodyear for providing them with so many bad tires, but we as consumers of their vehicles should not be punished for GM's bad decision to use inferior tire products. My advice to any of you who are dealing with the shaking/vibration issues which seem to get worse in certain situations, and remain inconsistent is simply this --- take it to the dealer and demand they replace the faulty tire(s). It seems to be the most common resolution to the vibration issues and can be readily fixed in a short time. Don't take "no" for an answer.

I'm just now discovering this thread. My previous gripes have been posted in the "2014 Owners with Issues" thread. This topic is my biggest issue with my 2014 Sierra All Terrain, but still one of many. It's a $50K truck that rides like a 1950's truck. The steering wheel and seat vibration from about 40-65 mph is utterly frustrating and absolutely not acceptable by anyone's standards. Mine is currently at the dealership for this and multiple other recall or warranty related issues. However, based on reading many pages of this thread I have no confidence there will be a fix for my (our) problem. To validate it further; the dealer gave me a loaner truck with 161 miles on the odometer. It has the exact same vibration and unsteady feel. I'm thinking this is a problem that runs throughout the new GM truck platform and they clearly know about it, but have no idea how to fix it, nor are they really concerned about doing so. It's easy for them to use the standard response of; "vehicle rides and performs as designed", therefore claiming the trucks are working fine by their standards in an attempt to avoid any liability. They know it's not something that'll cause physical harm to the drivers/passengers, therefore they have no worries about fatality lawsuits on this issue, unlike the other mess they're in right now. The sad thing is that if 90% of us would've known about this issue before buying our trucks, then Ford/Ram/Toyota sales would've shown major growth because there would be about 500,000 less new GM trucks on the road right now. I'll post my results upon getting mine back from the dealer, but my expectations of a resolution are virtually none. Mine is a 4wd CC, and the loaner is a 2wd CC, both with identical ride issues. That alone shows this problem is rampant across the new platform.

My question to you all is do you notice any power gains either through dyno results or even just your seat-of-the-pants feeling? My Sierra AT supposedly comes with a higher flow air cleaner than other models but I'm quite certain there is no discernible difference. And before I drop anyone's on a CAI I want to see/hear some real life tangible performance gains. I also would likely wait for K&N because they are really the industry standard for CAI kits regarding quality and fit. Sent from my iPhone using Tapatalk