Shake or Vibration Issues

[tbarn]

Why on earth would they have to punch holes in the steering wheel? They have already had the air bag and wheel off. The air bag is released from the rear of the wheel. Find another dealer.

[TheFactor]

Well it's nice to periodically come back to this thread and see some folks getting closer to a fix . I feel for everyone still dealing with the vib issue and everything associated with getting it fixed like the op ^^^^^ that's not good and part of dealing with a truck that has to be in and out of the shop chasing a fix . I almost feel bad jumping ship but it was like a breath of fresh air and sincerely hope you guys and gals get a fix or a new truck . Trust me it's such a relief and so satisfying . Until then hang in there and who knows they may have a fix in the near future hopefully.??

Edited August 18, 2015 by TheFactor

[ExpensiveVibrator]

Thursday I went by a local dealer and picked up some take of wheels with 10 miles on them. Took them to Les Schwaub had the sensors changed and balanced. My vibration, which was REALLY bad at 65-75 and the worst at 72 is completely gone. I actually love the truck now runs way smoother than my '13 did now. Will it last I dont know but so far so good.

[Stevens03]

What style wheels?

[abominable z71]

So after 200 miles on the road today, I can't yet give a solid opinion on these shackles, it's like this truck suffers from multiple personality disorder or something. It rides differently on the same stretch road from one trip to the next. It seems like when the truck has set for a while the ride is pretty decent but if it's been operating for a while like an hour or so the ride is much worse on the same strip of road. My only thought is shock fade possibly road force on the tires, GM says road force can change as much as 25 lbs on tires as they warm up and that's why they should be road forced right after being driven? Anyone else have a theory or notice the same behavior in the sense that the longer you drive the truck the ride quality seems to diminish or change?

[C6Bill]

Not sure what to tell you on that but I know one thing, I've taken my last ride on Goodyear tires. I took a good run on the highway today and from 73-75 i have a horrible vibration again. Dropped it off at the dealer and they will be getting me a set of Continental LX20's tomorrow. If that doesn't work then I'll need to come up with a new plan of attack. Hell I might even trade in the truck and the S Class and get a GL63.

[abominable z71]

I hear you on that, I had 3 acuras and a lexus before this truck and gave serious thought to an suv from either one before getting this truck. Now I'm thinking I probably should have.

[C6Bill]

The suck part is I really need a pickup.

[abominable z71]

Same here, I've been spending some time on the ram website building and pricing trucks, kicking myself for going with the truck that looked the best, when I could have got more truck for the money with features GM doesn't even offer.

[mjj]

it's like this truck suffers from multiple personality disorder or something

Haha. I think you've nailed it. Didn't you know these entire trucks are adaptive like the transmissions. Adaptive frames, adaptive shocks, adaptive rear ends, adaptive tires..... But seriously I've noticed the same thing on ocassion. I don't understand why it sometimes get the odd shakes. I had my tires rebalanced and I disabled AFM and my original 70+ mph slight vibration I don't notice anymore but now on roads that are not real smooth it seems to sometimes shake a lot around 50 mph. To me it seems like my shocks are bad but I doubt its that simple of a fix.

[abominable z71]

If I could get rid of the vibration I have no problem putting a couple grand into suspension improvements to get the best ride possible, I have to get rid of this vibe first. Trucks going back to les schwab too see if the problem is the wheels or tires. Right now it has raceline wheels and toyo at 2's that cause a much more noticable vibration than the factory wheels and SRA's which the goodyears are known garbage tires. Les Schwab assured me they'll stay on it til its fixed even if it means a new set of rims. All 4 tires are below 11 lbs road force variation and the vibration is third order 41 hz at 70 mph so definitely not simple dynamic balance.

[STAYBG]

Im still waiting for a phone call from a rep named steve.. Wonder if ill ever get it... Not holding my breath. Maybe next time i go to the dealer ill be a complete **** and cause a scene. Doubt that will get me anywhere either.. I just want my frigging truck fixed... Thats not so much to ask.. Im literally about to diagnose and fix it myelf and send gm my bill ...

[14silverado4.3]

I sent an email complaint to GM Monday about my vibrating Silverado through their customer service system, I have not heard back from them... Yea me

[ExpensiveVibrator]

What style wheels?

The 5 spoke 17"s with Bridgestone tires. I wanted to go with a 17" so I'd have plenty of room for airing down and maybe I made a good decision by going with them, who knows...

[rlsray]

I've been following this forum since I bought a new 2014 4x4 double Cab Z71 in Nov.. At 500 miles this truck didn’t feel right. . . My truck has been in for road-force at least 5 times with probably 8 different tires in 10K miles. It had the Ring and pinion replaced and the steering wheel shake under de-acceleration went away, but I agree these trucks are very-very inconsistent. There are times my truck is like glass, then there are times it’s a pile of garbage, I drove at least 8 new 2015 1500 in the last month looking for a smooth one on the highway. and now that I’m looking for it . I’m Still looking for one with a smooth ride. some shake the wheel, some shake the floor some shake the seat some do all three,.

 

In my opinion, the problem is in the new cab body mounts, too stiff of a seat and headrest, and Stiff rancho shocks (too much high speed compression and rebound dampening)all coming together for a problem and annoying ride. Maybe the use of “high strength steel” in the cab structure shifted the resonance of the truck cab too. I’m sure the marketed high strength steel term wasn’t used in conjunction with equivalent metal thickness to give us a stronger cab than the past designs but instead used with thinner sheet metal to reduce weight and cost with the intent of having similar strength. The fact that the 2500’s have similar issues knowing they use the same cab, cab mounts and seats but different frames, engines, axles and tires and rims seems to hold some merit it’s not drivetrain vibration but ineffective vibration isolation from normal driveline and road vibration.

 

The fact that GM is making the dealers roadforce balance tires to less than industry standard specs. To minimize excitation, really solidifies the fact the isolation in the body mounts and cab is garbage.. In theory, if the new hydraulic ( compression and rebound ) body mounts and vibration control (based on all the marketing hype) are in fact better shouldn’t we be able to allow a higher level of tire imbalance and achieve a similar ride to the old body style truck??. My truck shakes when cruising at high way speed 70-75 down the highway on sweeping turns and then the annoying vibration seems to stay.. I really think these body mounts don’t isolate the higher frequency road stuff out and this new lateral mount is allowing a strange shifts in cab to frame alignment. It seems like the longer the highway trip the worse the vibration.. My 2014 in V4 mode is significantly more noticeable than the 07 truck at highway speeds and low speed. Again pointing to the body mounts, shouldn’t the active fuel management V4 mode be even less noticeable then previous designs if the cab isolation control has improved.

 

[From the GM marketing bulletin http://media.gm.com/media/us/en/chevrolet/news.detail.html/content/Pages/news/us/en/2013/May/Silverado-May-5/0505-silverado-body.html

Shear-style body mounts enhance comfort, smoothness
New, shear-style body mounts on the 2014 Silverado significantly improve stiffness and contribute to a smoother ride. They also provide a more secure and consistent attachment of the body to the frame, for greater build quality and improved safety performance.The new body mounts are bolted to the frame and provide dampening in both compression and rebound, meaning the tension generated during compression is released in a controlled manner, similar to a shock absorber. The previous hydraulic body mounts worked in compression only. In addition, the new shear-style mounts are significantly stiffer than the mounts used in the previous truck, helping to reduce vehicle shake.]

 

It’s actually comical to watch the chevy marketing videos on their website regarding the frame and body mount design and testing and, to hear all the BS about road comfort and vibration isolation improvement. The NVH group dropped the ball. I wish I could get the ride quality and consistency of my 07 extended cab z71 had.

 

I don’t want a truck that requires absolute perfection in tires, rim mounting, tire balance , prop shaft balance, pinion angle , force vectoring, to keep my water bottle, coffee, pant leg, fingers, Dorito’s bag, iphone cable, computer bag, grocery bag, tool bag, cup holder change and my kids head from that annoying shake, perfection in mass production doesn’t exist but this truck design clearly didn’t take into account variation in the design and mfg process.. I’m not a fussy person just pissed this truck is a worse riding experience than my older Silverado’s.