Jump to content

Recommended Posts

Posted

Are the crew + 6.5 standard box having issues too?

Yes. Any cab and bed configuration, engine, transmission, gear ratio, trim package, etc. are having issues. Seems to be more prominent in extended and crew cabs though. There have also been reports of a few HD trucks that are having issues as well
Posted (edited)

Are the crew + 6.5 standard box having issues too?

yes, from what i have read and two of my friend's have that config with 6.2's both not happy but different vibrations than the rest of us complaining about. others in this thread have said their 6.5 CC have vibrations above 70 so it's again, something cumulative not a singular issue which is why WE ALL BELIEVE IT TO BE AN ENGINEERING/DESIGN FLAW that's why even when it's "fixed" it doesn't completely go away, just changes to intermittent and/or different load/speed noticeable

 

i have said it before i'll say it again... maddening... trucks are so nice, quiet, ride great at under 55mph look great and BAM cannot go on a hwy cruise.. the main reason we bought the truck is to have the full size truck RIDE we have become accustomed too having owned so many.. never this issue.. closest was a set of tires/wheels improperly balanced..

Edited by TonyAllTerrain
Posted

yes, from what i have read and two of my friend's have that config with 6.2's both not happy but different vibrations than the rest of us complaining about. others in this thread have said their 6.5 CC have vibrations above 70 so it's again, something cumulative not a singular issue which is why WE ALL BELIEVE IT TO BE AN ENGINEERING/DESIGN FLAW that's why even when it's "fixed" it doesn't completely go away, just changes to intermittent and/or different load/speed noticeable

 

i have said it before i'll say it again... maddening... trucks are so nice, quiet, ride great at under 55mph look great and BAM cannot go on a hwy cruise.. the main reason we bought the truck is to have the full size truck RIDE we have become accustomed too having owned so many.. never this issue.. closest was a set of tires/wheels improperly balanced..

 

I was hoping the issue would have been fixed with the refresh. A bit gunshy to pull the trigger now.

  • Like 1
Posted

I was hoping the issue would have been fixed with the refresh. A bit gunshy to pull the trigger now.

I was also hoping the issue had been found. My 2014 Sierra has 31000 miles on it. At 25000 they rebuild the rear end put 4 new tires on a replaced the rear shocks. I can hardly notice any vibration but sometimes I swear I can feel it. I would call mine 99% fixed. However I believe there is one more missing piece to this puzzle. I keep checking in to see if it has been found.

 

I would probably not buy another 1500 GM until this issue is found. I will either go 2500 or go with another brand Or thoroughly demo a new truck and make sure there is no shake. All the loaners I were given had it too to a varying degree.

 

Good Luck guys.

Posted

I was also hoping the issue had been found. My 2014 Sierra has 31000 miles on it. At 25000 they rebuild the rear end put 4 new tires on a replaced the rear shocks. I can hardly notice any vibration but sometimes I swear I can feel it. I would call mine 99% fixed. However I believe there is one more missing piece to this puzzle. I keep checking in to see if it has been found.

 

I would probably not buy another 1500 GM until this issue is found. I will either go 2500 or go with another brand Or thoroughly demo a new truck and make sure there is no shake. All the loaners I were given had it too to a varying degree.

 

Good Luck guys.

Kind of hard considering mine didn't develop till 15k, and I believe that's the highest mileage on here. Mine is not as bad as many others on here, so mine could honestly just be tires. Need new ones anyways, maybe it will fix it. If not, I just spent money on tires on a truck I'm not gonna keep lol
Posted

Now that I'm thinking about it, people are having the same issue of varying degrees at different speeds. I wonder if something internal of the motor or trans is out of balance, like let's say the crankshaft possibly? As far as why it may come and go, you got me there lol

Posted

Now that I'm thinking about it, people are having the same issue of varying degrees at different speeds. I wonder if something internal of the motor or trans is out of balance, like let's say the crankshaft possibly? As far as why it may come and go, you got me there lol

My thought was the torque convertor or inside the transmission.

But it could be any rotating part inside the engine or transmission.

  • Like 1
Posted (edited)

If it was the engine or flywheel it would do it in neutral and rev the engine up.

Edited by Silverado 6.2
Posted (edited)

So, 5.3's do it, 6.2's do it, 6 speeds do it, 8 speeds do it, Z71's do it, LT's and SL's do it, different gear ratios do it, steel wheels or alloys do it. What is common to all of these trucks? From the front: Wheel bearings?, cv axles?, brakes?, struts (springs anyway)?, Transfer case(?), drive shaft?, rear axles and bearings?, rear ends?, rear brakes and springs.? are six cylinder guys having the same issues? I am intersted to see what the non road test, wheels off the ground results will be. I know my suspension pics up every crack in the road so, i am willing to bet that anything could be causing this right down to buffeting the underside of the truck and transferring through the cab. but then, i am just guessing

Edited by Willshire
Posted (edited)

yes, from what i have read and two of my friend's have that config with 6.2's both not happy but different vibrations than the rest of us complaining about. others in this thread have said their 6.5 CC have vibrations above 70 so it's again, something cumulative not a singular issue which is why WE ALL BELIEVE IT TO BE AN ENGINEERING/DESIGN FLAW that's why even when it's "fixed" it doesn't completely go away, just changes to intermittent and/or different load/speed noticeable

 

i have said it before i'll say it again... maddening... trucks are so nice, quiet, ride great at under 55mph look great and BAM cannot go on a hwy cruise.. the main reason we bought the truck is to have the full size truck RIDE we have become accustomed too having owned so many.. never this issue.. closest was a set of tires/wheels improperly balanced..

Your 2016 vibrates?

Edited by Willshire
Posted

So, 5.3's do it, 6.2's do it, 6 speeds do it, 8 speeds do it, Z71's do it, LT's and SL's do it, different gear ratios do it, steel wheels or alloys do it. What is common to all of these trucks? From the front: Wheel bearings?, cv axles?, brakes?, struts (springs anyway)?, Transfer case(?), drive shaft?, rear axles and bearings?, rear ends?, rear brakes and springs.? are six cylinder guys having the same issues? I am intersted to see what the non road test, wheels off the ground results will be. I know my suspension pics up every crack in the road so, i am willing to bet that anything could be causing this right down to buffeting the underside of the truck and transferring through the cab. but then, i am just guessing

yes, I have the V6 and have it too

 

Your 2016 vibrates?

mine isn't 2016, but i have seen a few reports of 2016's vibrating

Posted

Ok. So are we thinking the same thing here? Not engine, not transmission, but is a rotating component? Which leaves front and rear axles and drive shaft. Could it be amplification of a problem through the stiff suspension? I guess with all of the different vibrations called out, i will stick with the 65-80mph one lol.

 

Also, if it isn't in the steering wheel, can it still be in the front end?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Latest Articles

  • Posts

    • So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...