Shake or Vibration Issues

[arkenzo]

 

Guessing that's why you disposed of 50K of it on a vibrator.

lol, maybe i'm just lucky but my 2014 and current 2016 silverado have been vibrator free....2014 had 58,000 miles when i traded it in and my 2016 currently has 20,000 miles.....and i definitely did not pay $50,000

[evlwhtman]

 

In my particular case I noticed the bed was shimmying while driving and with no help I took my driveshaft to a specialist shop who found it was not only out of balance at the rear but not even straight. That managed to take the wheel hopping issue from the rear away but its now coming from somewhere in the front through the steering wheel and pedals. Feels like trans of front diff issues.

 

I notice you have aftermarket wheels and tires with a possible level kit? I had Mazzulla uppers, Fox coilovers and rears, wheels and tires and they straight up turned me away FYI stating that my warranty was void and any vibrations felt were because of the aftermarket parts. I talked to GM corporate and they agreed that even changing wheels and tires that my 100,000 mile 5 year powertrain warranty was no longer good. I had asked if by their standards that I would have to keep the OE tires for 100,000 miles and the guy told me yes. That's when I laughed and realized that I would receive no help at all.

 

My advice would be to put on your OE equipment before going down the never ending road just incase they decide to put a note on the paper work that you modified your truck or just turn you away wasting your time.

 

He is completely correct, as soon as they see aftermarket parts you are done for! I went through the same thing, spent a lot of money on no warranty voiding upgrades and was told I still voided my warranty and would have to pay out of pocket for any repairs associated with the vibration issue. What did I install you ask? Wheels and tires and cat back dual exhaust, neither of which at any other manufacturers dealership will void your warranty.

My advice is the same as most, get rid of it while you can and hope the dealer you take it to doesn't ask if it has the "Chevy shake"

[abominable z71]

 

He is completely correct, as soon as they see aftermarket parts you are done for! I went through the same thing, spent a lot of money on no warranty voiding upgrades and was told I still voided my warranty and would have to pay out of pocket for any repairs associated with the vibration issue. What did I install you ask? Wheels and tires and cat back dual exhaust, neither of which at any other manufacturers dealership will void your warranty.

My advice is the same as most, get rid of it while you can and hope the dealer you take it to doesn't ask if it has the "Chevy shake"

Magnuson Moss act put's the onus on the manufacture to prove you're aftermarket parts caused whatever issue they are trying not to warranty. In the case of the vibrations even though after market wheels and tires are not the cause it's hard to argue that they have to address the situation without having the factory wheels on the truck it's just an easy out for them to not touch your truck.

[Wrench589]

I had vibration at 35-45 and 73-80 did a level kit and body lift vibration stayed did bigger tires vibration stayed did new bilsteins level struts and another alignment and no more vibration at 73-80 and I rarely get a vibration at 35-45

Interesting. So, which of those last 3 steps do you think solved the 73-80 mph vibration; the Bilstein shocks, the level struts, or the alignment?

 

BTW, pardon my ignorance, but what are "level struts"?

[abominable z71]

Interesting. So, which of those last 3 steps do you think solved the 73-80 mph vibration; the Bilstein shocks, the level struts, or the alignment?

 

BTW, pardon my ignorance, but what are "level struts"?

level struts, are replacement struts that are longer than factory to level the front end with the rear. Search rancho quick lifts, they are a full replacement spring and everything. The bilsteins are just the strut itself, you disassemble your factory assembly and replace the strut with a longer one and reuse your spring and top hat and hardware. The end result is something about 3/4-1" longer than OEM raising the front end about 2" give or take.

[Wrench589]

level struts, are replacement struts that are longer than factory to level the front end with the rear. Search rancho quick lifts, they are a full replacement spring and everything. The bilsteins are just the strut itself, you disassemble your factory assembly and replace the strut with a longer one and reuse your spring and top hat and hardware. The end result is something about 3/4-1" longer than OEM raising the front end about 2" give or take.

Got it. Thanks. I didn't realize that these new trucks use a strut like a car. Was thinking older style with separate shock and coil spring/a-arms.

[Wrench589]

So, what is interesting about the levelling struts is that raising the front end and eliminating the factory rake would affect the front end geometry ever so slightly. I'm struggling for a theory on how that could be related to the shake/vibration, but interesting nonetheless. Must be something to it.

[Garykk]

Got a call from the GM advisor and was asked about the truck, told him it's still the same. Then he told me that I have the wrong tires on it as they are ATs from Bridgestone. I advised him that the GM specs for my truck called for ATs not those cheap Goodyear all seasons. And when I first got the truck it had the Goodyears and it vibrated then. I also told him that these tires were put on by the dealer and that according to GM requirements they are considered OEM and that's the reason I went with them. I told him that if GM wants to buy new tires, have at it. Also told him I was going to be in a different state for awhile, surprisingly, he told me that to call him and he would arrange for me to go to a GMC dealer where I am..

The story continues, ....a different brand is looking better and better..

Edited May 5, 2017 by Garykk

[C6Bill]

Total up how many hours you spend, trying to deal with this issue. The phone calls, the trips to the dealer the searches - posting on the internet and the time talking to friends/family/co-workers about it. Then decide how much your time is worth. Are other brands perfect, NO. But this is a known issue and GM has decided not to resolve it. In the 18 months since I opted out the only time I spend on this subject is reading this thread, it's kind of like a train wreck. I just can't stop looking

Edited May 6, 2017 by C6Bill

[polarys425]

Got it. Thanks. I didn't realize that these new trucks use a strut like a car. Was thinking older style with separate shock and coil spring/a-arms.

 

They don't. The correct term is coil over shock.

[polarys425]

So, what is interesting about the levelling struts is that raising the front end and eliminating the factory rake would affect the front end geometry ever so slightly. I'm struggling for a theory on how that could be related to the shake/vibration, but interesting nonetheless. Must be something to it.

 

Leveling mine with a set of Fox coil overs and a 1" block in the back eliminated the 35-50 vibration in mine. I still have a minor 75 vibe that isn't always there. I have wondered a couple times if some of this is compounded by aero. Maybe even to the point that air density effects things. Just a thought though. I have a feeling tire temp and pressure is more likely it.

[Deadeye]

Taking mine in Monday. Just what is force balancing?

 

Do dealerships have the ability to true up out of round tires?

[kthomas72]

Taking mine in Monday. Just what is force balancing?

 

Do dealerships have the ability to true up out of round tires?

 

Just an FYI it is not your tires. Its the GMs way to go the cheapest route to say they are trying to fix it. I tried 3 different rim/tire sets with the same vibrations and put my OEs on another truck and it was smooth as glass.

[Deadeye]

Yeah there can't be that many bad tires or incorrect ly balanced but it's the first step of the process.

[AllTerrain13]

 

Just an FYI it is not your tires. Its the GMs way to go the cheapest route to say they are trying to fix it. I tried 3 different rim/tire sets with the same vibrations and put my OEs on another truck and it was smooth as glass.

There maybe some truth to this! I am on my second batch of "GM Certified" tires and still no solution.

 

So I'm up to the following parts.

 

Tires x 3 or 4 sets

Right and left rear axle

Ring and pinion

Right front wheel hub

New wheels

Steering bushings

 

I still don't have possession of my truck. Over 30days straight.