Shake or Vibration Issues

[Newell33]

 

Funny, my transmission shifts great, I NEVER feel the AFM go from V4 to V8 and back. Seat heaters work great, no high pitched 4x4 dash noise, radio reception is fine, seat tracks aren't loose, and the headlights have no issues, granted I have the standard headlights.

 

If it were engineering, all trucks would suffer your list of "issues". Engineering and manufacturing variance are two different animals.

 

 

Funny, my transmission shifts great, I NEVER feel the AFM go from V4 to V8 and back. Seat heaters work great, no high pitched 4x4 dash noise, radio reception is fine, seat tracks aren't loose, and the headlights have no issues, granted I have the standard headlights.

 

If it were engineering, all trucks would suffer your list of "issues". Engineering and manufacturing variance are two different animals.

You must own a 2012!

[pm26]

Some guys over on the F-150 forum are having issues as well. Some are finding their pinion angles are off.

 

http://www.f150forum.com/f118/2015-f150-fx4-vibration-help-297498/

 

I am pretty mechanically inclined but don't know much about driveline angles. If our pinion angles are off, I would assume the vibe would be at most speeds rather than just at highway speeds. Can anyone confirm?

Thanks!

It sounds like this guy's $ 55k "Ecoboost" turned out to be an "Egobust".

[paxtonman]

 

Guess you truely have no one to be pissed at other than yourself for not buying something else after all this time. Just sayin'.

 

3 yrs for GM, my 14 was perfect, 15 bought in May is when the problems started

[abominable z71]

Manufacturing variances should be accounted for in the design of the vehicle. If you know a part you plan on using is going to vary and that variance can contribute a negative effect if out of spec you better account for it or tighten the QC inspection frequency to catch the part before it makes it's way into an assembly. Engineering isn't merely designing something to perform a certain task or sets of tasks it has to account for a whole list of other variables that can affect it's ability to accomplish that task. I understand it's impossible to account for everything that could happen and not cost effective to inspect every single part. But this is not a 250 dollar bicycle from Walmart that you just replace with something else when it provides subpar performance. It's a 50 thousand dollar truck and to tell someone like Paxton he can only be pissed at himself for not taking a $10,000 loss to get out of a poorly built truck is BS. If you've read the posts of people who have traded it in or looked into it, the results are terrible, some dealers will not even consider accepting them as a trade in, or they offer well below a reasonable trade value because they know about the vibration issue in this platform. So even if your truck doesn't vibrate it's value is still affected by it.

[paxtonman]

I grew up with my dealer, drank first beer together, raised hell together, that's why I've stuck with it, because of him not GM. When I do volunteer work at our golf course I borrow his $40,000 toolcat without a hesitation. I love the 6.2, haven't had anyother problems, except for the 15 Sierra headlights which are non lights. But this next one will be the last, and I've told him so. He understands, can't own a vehicle that is so sensitive you can't change tires on. If it's good I'll run it until it needs tires, if it's bad I'll get a Ford when the 0% deals for 16's come out. The folks with non vibrators don't understand they are going to pay for this as well. Word is spreading about the 14-16 GM trucks.

[Juicybusa]

I can only assume I'm one of the fortunate 2014 Sierra owners. Has my truck been perfect? Absolutely not! I've successfully worked with my outstanding dealer/service adviser to remedy to my satisfaction to date all the issues I found problematic except for the less than stellar radio.The headlights originally were a disgrace, the Volsa solution has proven to be a safe and acceptable solution for me. The exhaust flapper squeak took two replacements to finally fix that issue. Seat was loose. Had the transfer case and hvac software updates. Had an incarnation of the dreaded vibration issue that thankfully was addressed by replacing one rear tire that had a 30 lb. roadforce reading. Truly smooth as silk now. Heck, nearly every malady discussed here. LOL While I don't like the time and aggravation of working through these issues, my observation is that it's not that unusual when purchasing a brand new platform.

I can truly sympathize with you guys and girls who have not been so fortunate and suffer seemingly never ending frustration and disappointment when you should be enjoying your beautiful new truck. Now GM; get busy and fix this sorry ass radio!

[steelcity]

I grew up with my dealer, drank first beer together, raised hell together, that's why I've stuck with it, because of him not GM. When I do volunteer work at our golf course I borrow his $40,000 toolcat without a hesitation. I love the 6.2, haven't had anyother problems, except for the 15 Sierra headlights which are non lights. But this next one will be the last, and I've told him so. He understands, can't own a vehicle that is so sensitive you can't change tires on. If it's good I'll run it until it needs tires, if it's bad I'll get a Ford when the 0% deals for 16's come out. The folks with non vibrators don't understand they are going to pay for this as well. Word is spreading about the 14-16 GM trucks.

So, you're (friend) owns a dealership and the "next one" which you haven't even seen yet, will be the last, BUT if its good, you'll run it till it needs tires BUT if it's bad you'll buy a Ferd???? And your only complaint so on far on your 15 is the headlights???

Edited February 19, 2016 by steelcity

[paxtonman]

No this one vibrates too, both of my vibrators have had the PICO scope, I went with them on this truck. Rear end and tire vibration, on this one he said after new tires were put on.

[paxtonman]

When the GM engineer and I got back and told my friend / owner the results my dealer said no, we're going to order you a new truck, we're not going to go through this again. Meaning the endless procedure of following the GM protocol the dealers have to do. The endless tire balancing, checking driveshaft, etc., which they did on the first one. First one had 5 tire balances, 2 sets of tires, rotated driveshaft 180 degrees, which did nothing by the way. Unless you own one of these you have no idea of the frustration level, and coming to this forum to attempt to make us buyers feel like we did something wrong just shows some peoples level of stupidity. Just read a review of the 16 Sierra couple days ago, in the review it was mentioned that some people have a "percieved" vibration. It's not percieved, it's real, and they can't fix it. The next truck will be my third new truck since May.

[abominable z71]

When the GM engineer and I got back and told my friend / owner the results my dealer said no, we're going to order you a new truck, we're not going to go through this again. Meaning the endless procedure of following the GM protocol the dealers have to do. The endless tire balancing, checking driveshaft, etc., which they did on the first one. First one had 5 tire balances, 2 sets of tires, rotated driveshaft 180 degrees, which did nothing by the way. Unless you own one of these you have no idea of the frustration level, and coming to this forum to attempt to make us buyers feel like we did something wrong just shows some peoples level of stupidity. Just read a review of the 16 Sierra couple days ago, in the review it was mentioned that some people have a "percieved" vibration. It's not percieved, it's real, and they can't fix it. The next truck will be my third new truck since May.

"Some people have a perceived vibration" you just think it's vibrating and so does the PICO scope. My guess is the typical PICO reading is a T3. Which I think but can't confirm is a 3rd order tire vibration which really just means that something is vibrating at 3 times the tire frequency, this is why they constantly road force the tires but it rarely solves it because they are not the issue.

[paxtonman]

That's exactly what he said on the tires, it was a phase 3, meaning the tire was out of round in 3 spots he said. He said it was the right front.

[abominable z71]

That's exactly what he said on the tires, it was a phase 3, meaning the tire was out of round in 3 spots he said. He said it was the right front.

Did replacing the right front fix the vibration?

[paxtonman]

No

[Wrench589]

Manufacturing variances should be accounted for in the design of the vehicle. If you know a part you plan on using is going to vary and that variance can contribute a negative effect if out of spec you better account for it or tighten the QC inspection frequency to catch the part before it makes it's way into an assembly. Engineering isn't merely designing something to perform a certain task or sets of tasks it has to account for a whole list of other variables that can affect it's ability to accomplish that task. I understand it's impossible to account for everything that could happen and not cost effective to inspect every single part. But this is not a 250 dollar bicycle from Walmart that you just replace with something else when it provides subpar performance. It's a 50 thousand dollar truck and to tell someone like Paxton he can only be pissed at himself for not taking a $10,000 loss to get out of a poorly built truck is BS. If you've read the posts of people who have traded it in or looked into it, the results are terrible, some dealers will not even consider accepting them as a trade in, or they offer well below a reasonable trade value because they know about the vibration issue in this platform. So even if your truck doesn't vibrate it's value is still affected by it.

100% agree! Couldn't have said it better myself. Won't even try....

[Wrench589]

Funny, my transmission shifts great, I NEVER feel the AFM go from V4 to V8 and back. Seat heaters work great, no high pitched 4x4 dash noise, radio reception is fine, seat tracks aren't loose, and the headlights have no issues, granted I have the standard headlights.

 

If it were engineering, all trucks would suffer your list of "issues". Engineering and manufacturing variance are two different animals.

 

Funny, my transmission shifts great, I NEVER feel the AFM go from V4 to V8 and back. Seat heaters work great, no high pitched 4x4 dash noise, radio reception is fine, seat tracks aren't loose, and the headlights have no issues, granted I have the standard headlights.

 

If it were engineering, all trucks would suffer your list of "issues". Engineering and manufacturing variance are two different animals.

Well, you are both right and wrong. Yes, engineering and QC are two different things. But guess what... Who is responsible for both in thIs case? GM!! Who else? Not the customer, that's for sure.

 

But, on the other hand, engineering absolutely can affect part quality. Poor engineering will always result in poor quality parts. For example, if some idiot engineer decides to design something that must be machined to 1/10 of a thou accuracy, or it will it work properly, how can he expect that be be accomplished? He can't just throw that design to the parts manufacturer and expect to get it. Unless they are capable, they will fail. And I've seen many examples of such poor engineering in my 30 year career as an engineer. So believe me, engineering can and does affect quality. It all starts with the design.... The engineer needs t design for success. If they don't, then failure will be the result.