Shake or Vibration Issues

[ic3man5]

 

In my case it made my problem significantly worse. Now I am getting passenger seat vibration as well as steering wheel / center console vibration. I suspect they were not done properly or the machine was not calibrated or operated in manual mode. I will get specific numbers when visiting the dealer again.

 

Another thing to note. I'm curious if locking lug nuts could cause a balance issue. I have not weighed them comparatively to the standard ones but I've read these can be up to 1.5oz and that often adding a counter balance to the inside of the rim may counteract it.

 

Since the tires are put on a machine without the lug nuts I could see how this would feasibly throw things slightly off however i may be way offbase or perceiving this would need to be done at high speeds.

 

I noticed that the right side tires have weights both on the inside and outside of the rim while the left tires only have them on the outside of the rims.

 

Can anyone with experience confirm if this could cause an issue?

 

 

Also found the following from another forum post. A good bulletin explaining the troubleshooting tips for vibration issues.

 

http://oemdtc.com/6392/information-on-vibration-analysis-and-diagnostic-2014-2015-chevrolet-silverado-gmc-sierra

 

I have the locking lug nuts on my 15 and don't have this issue. From following this form I suspect the axle shafts or something near them are out of alignment. Not once have I seen anyone say they have been inspected;

 

There are three types of major vibrations:

 

1.) Front end: You'll feel it in the steering wheel more than anything and will be left and right vibration.

2.) Rear end: You'll feel it 'behind you' and it will be left to right vibration.

3.) You won't know where its coming and it feels overwhelming: axle shafts or something similar is causing a front to back vibration.

 

So far no one has described exactly how the vibration 'feels' in details (from what I've read). Also its pretty sad GM can't narrow this down.

[FogDucker]

 

Nearly every rear end was build defectively that went on 2014-2015 Sierra and Silverados.

 

It is a known fact that American Axle messed up when supplying these. Ring/pinion gears were not built to spec, causing vibrations and grinding/rubbing noises that will come from your floor and or steering wheel (mostly during deceleration).

 

I have had the rear axle assembly swapped out with new on 2 trucks so far.

 

I feel bad for people that are not aware of this because years down the road they will have failing axles, chances are, when the vehicles are out of warranty.

 

In my eyes this is criminal and a lawsuit should happen eventually...because rear axles are not cheap to replace and GM KNOWS THEY ARE BUILDING TRUCKS WITH BAD AXLES.

 

Shameful.

If this is true, GM should be able to hold their supplier accountable for the costs to replace the rear ends, no?

 

Does anyone know if this was a new supplier or a new line for our trucks? Do they make all gear sets or just certain ones?

[Badass69]

If this is true, GM should be able to hold their supplier accountable for the costs to replace the rear ends, no?

 

Does anyone know if this was a new supplier or a new line for our trucks? Do they make all gear sets or just certain ones?

Aam has been making gm's rear diffs for a very long time... circa 1994. They make rear ends for FCA (Chrysler) as well as pretty well every other manufacturer out there.....

 

Sent from a potato

Edited November 14, 2015 by 1994Vmax

[Mickey_D]

I had a 2014 GMC LB CC Z71 that I had to trade in last year because we bought too big of a RV to safely tow with it. Truck drove great and did not have the high speed vibration issue but it did vibrate very badly on certain roads (freshly paved with slight oscillations). Despite this issue I really loved that truck. One road near my house made it feel like it was coming apart at about 45-50 mph - a little slower or faster and it was fine. I suspect the stutter bumps were matching a frame frequency and having a party. In the replacement 2014 Cummins Ram the road just feels a little bumpy, same in our Tahoe and the half ton loaner Ram that I had last week. This is a frame problem.

 

Thinking that this is going to be fixed forever with a new rear end or super road force tire balance or better rims is insane. What happens when your front tires wear a little funny and get out of balance just from driving them? Or you go to Discount Tire or WalMart to get new ones in two years and all they can do is spin balance them? I guess they will be popular at the Sherwin Williams stores for shaking paint cans. GM needs to fix this problem by adding vibration dampening cartridges like Chrysler had to do (and from what I have read Ford will have to do on their new ones as well). This is really sad because GM makes the best looking trucks by far and when they are not shaking they drive great.

[mikedege]

Mine still not shaking at any speed, even after lift and new tires. I'm starting to feel cheated!!!

[Tattooo]

hows the '16?

All good....just picked it up and the new tire & road force balance did the trick......

[patriot]

Mine still not shaking at any speed, even after lift and new tires. I'm starting to feel cheated!!!

Mine either. We didn't get our free shake. 30K and still doing great.

[PMurray]

My GMC sle dbl purchased 7/14 and repaired with a new rear end in 9/14 continues vibration free at 20k miles and 4 tire rotations.

No Ford, FCA, or Toyota looks so good and delivers terrific fuel economy.

[Tattooo]

These trucks are sexy [emoji2]

[C6Bill]

I'm just going to add a change slot to my dashboard, I'll stick a quarter in every time I want it to vibrate. That way I can call it an option, that's the difference between an issue and an option right ? You have to pay for an option

[Tattooo]

Lol.....^^^

[pm26]

No Ford, FCA, or Toyota looks so good and delivers terrific fuel economy.

Do they require rear end replacement with 4k miles on the clock?

Edited November 15, 2015 by pm26

[pm26]

I'm just going to add a change slot to my dashboard, I'll stick a quarter in every time I want it to vibrate. That way I can call it an option, that's the difference between an issue and an option right ? You have to pay for an option

GM has provided the vibration feature as standard equipment on a select number of trucks.

Edited November 15, 2015 by pm26

[C6Bill]

Probably standard on LTZ and High Country and a few lucky LT owners got it for free !!!!!

[C6Bill]

I'm going to start a class action suite against the LT owners who go it for free.