2014 w/ 34,500 miles vibration issues

simon.hed · May 28, 2015

Mine has the issue and its pretty bad from 73 to 78 or so (in other words, right where I drive on interstate).

I first took it in at 7500 miles, they blamed tires. They said they have had a few that had bad rear ends which they replaced and it corrected the issue. They are saying mine are tires. I have 33k or so on them. They are finding some new wheels/tires to put on mine as a test because I called BS on them. That should happen next week.

I am fairly confident my dealer will do what can be done. I am afraid it is going to become a GM issue.

EDIT TO ADD: They have hooked it up to some fancy diagnostic tool he said can detect what is causing the vibration. I had never heard of it but I have seen such a tool referenced on here.

May 28, 2015

Mine has the issue and its pretty bad from 73 to 78 or so (in other words, right where I drive on interstate).

I first took it in at 7500 miles, they blamed tires. They said they have had a few that had bad rear ends which they replaced and it corrected the issue. They are saying mine are tires. I have 33k or so on them. They are finding some new wheels/tires to put on mine as a test because I called BS on them. That should happen next week.

I am fairly confident my dealer will do what can be done. I am afraid it is going to become a GM issue.

EDIT TO ADD: They have hooked it up to some fancy diagnostic tool he said can detect what is causing the vibration. I had never heard of it but I have seen such a tool referenced on here.

They call it a PICO (don't know if i spell it right) analyzer, mine has been in the shop for about two and a half months now, they had a tech from another state come in and figure out what was going on, they are replacing the entire rear end.

crushNchowda · May 28, 2015

Thanks for the responses - sucks because at the end of the day I actually like everything else about the truck, but the problems I have w/ it are pretty damn big, at least the tranny can be addressed w/ a good tune - the vibration though, headache big time (literally and figuratively due to the vibrations lol)

I am actually going to print this out and bring it w/ me tomorrow to show the service mgr

jonny24 · May 29, 2015

I may have felt it, I'm not sure yet. I just hit 20 000 km, never felt a thing yet. But when I swapped my factory 18's back on after winter, I though I maybe noticed a slight shake or vibration on the highway going around 115-120 km/h. Maybe two or three times, very slight in the seat/armrest mostly. I'll continue to pay attention, and then get the tires balanced. It did happen immediately after swapping wheels.

crushNchowda · June 17, 2015

Truck gets dropped off @ the dealer this coming Monday evening to be checked out by the GM engineer w/ the "PICO" device....hopefully he can figure it out.

crushNchowda · June 23, 2015

So today the dealer service mgr. called up and said they are going to replace my left front wheel hub (hub = bearing in my understanding) based on data collected by the GM engineer's vibration monitoring device finding play there. Don't see how that is the culprit as I have not heard that being replaced on anyone else's truck and also strange because it has been vibrating from day 1 seemingly and this is more a wear issue.

crushNchowda · June 29, 2015

Well I can't say I'm surprised, but after having the truck for another week and half and having the GM engineer w/ pico machine check the truck out twice they replaced a front wheel hub but could not remove the vibrations and I have a service mgr at the dealer who fully acknowledged that "there definitely is a vibration problem, we know it's there, but it can't be fixed it's an engineering flaw inherent in the stiff suspension"

I'm really annoyed now. I am now just over the BtB 36k warranty and I swear the dealer must have put 700 miles on it messing around with it I'm sure some of that on purpose to help push my truck over the full warranty mileage.

I'm still adamant t he vibration is from the driveshaft or rear end but they refuse to believe that and say the vibration testing proved otherwise.

I would not advise ANYONE to buy a GM truck at this point, I know for a fact I am not the only person having issues with these trucks- my buddy is on his THIRD after 2 buy backs!!!!!!

I have no fight left in me, while the mileage is still low & I can still fin new V8 ford raptors on lots I'm making a switch.

F you GM, glad I purchased my wife an MDX recently over the Acadia. I'm done with GM period after this, the only GM vehicle I'll ever drive is my '03 Z06 which they produced when they actually gave a damn.

51 ashton · June 29, 2015

If your not happy, dump the truck and dont look back. In time youll be happy again regardless of what you decide to drive. Thats what i did and now i feel for the unaware because i was once where you are now. The more i look at them the more im glad i got rid of mine.

gone_fishing · June 30, 2015

I've been one of the lucky ones with little to no vibration issues on my Sierra. I might have a slight vibration around 80 MPH but don't drive that fast very often.

Found some interesting information regarding vibration diagnosis on the GM TechLink website.

"There have been several vibration conditions on 2014 Silverado 1500 and Sierra 1500 and 2015 Silverado, Tahoe, Suburban, Sierra, and Yukon models that have proved to be difficult to diagnose. These vibrations often occur at speeds of 35–45 mph (56–72 km/h) or 60–70 mph (96–120 km/h) and are felt in either the seat or steering wheel."

Part 1: http://sandyblogs.com/techlink/?p=4396

Part 2: http://sandyblogs.com/techlink/?p=4394