Jump to content

Recommended Posts

Posted

Just stopped by my local tire shop to discuss some options on my new old truck. We talked about the new GM trucks and what I've been through. He said that ALL GM trucks are having this vibration issue. Some people feel it or some don't. Some don't drive above 65 or so which is where my vib started. He states that GM knows there are issues but again, won't publicly admit.

 

I'll straight up tell you, my truck does NOT vibrate.

Posted

Has anyone noticed a difference between the windows up with the ac running and having all the windows down on the highway. I've just recently noticed that At 75 mph with all windows down my truck doesn't seem to shake like it does with the windows up. Could this be an air pressure or aero issue? I also have a tonneau cover on my truck which does flutter in the wind. How many people having shaking at highway speeds do or don't have a tonneau? I think they made the rear of these trucks too light and too stiff.

Posted

Has anyone noticed a difference between the windows up with the ac running and having all the windows down on the highway. I've just recently noticed that At 75 mph with all windows down my truck doesn't seem to shake like it does with the windows up. Could this be an air pressure or aero issue? I also have a tonneau cover on my truck which does flutter in the wind. How many people having shaking at highway speeds do or don't have a tonneau? I think they made the rear of these trucks too light and too stiff.

Somewhere along the line I took mine off and no change. Like 1/2 way back...
Posted

I have shudder and vibration before I installed a backflip tonneau cover and no change in the vibration issues.

I just noticed wheel sensors at each side of rear axles, i wonder what their real purpose do, are they for the traction control system.

Posted (edited)

Heck this is just the first series of events. Im already past Bigfoot, Nessie, Little Green Men, the G Spot and other Urban Legends. But good luck. :help:

Made me laugh.

Edited by Pinnacle
Posted

I'm curious if anyone has had this issue then either lifted or lowered the truck and it went away???

Posted

Ford produces 800 - 1000 so does Dodge, and Toyota a day and their trucks don't shake, last generation GM trucks did not shake like these do!

I am not about to be force fed this bull**** we all paid good hard earned money for these trucks.

Some of us rely on these trucks for or income and spend a lot of time in them too!

So we are entitled to a response from GM, or acknowledgement that they are aware these trucks have issues and that they have not forgotten what their customers are dealing with!

I have found GM refused to do anything for me, until I got legal advise and help addressing my troubled shaking, shuddering, clunking, bad reception, moving seat, rusting frame truck.

How could they claim so many miles testing without knowledge of these problems?

What type of legal advice did you take if you don't mine me asking?

  • Like 1
Posted

So it's been about a week since I had my 2 out of round tires replaced. The shake has gotten worse, it was a lot better a first but now it's just as bad as before I got these tires replaced. Think I am going to try something radical. There is this a product called dynabeads by this company http://www.innovativebalancing.com Apparently you put this stuff in your tire and it continuously balances the tire. Anyone ever try something like this?

It definately couldn't hurt to try, I may just give it a try. Sure would be something if this fixes the problem.

Posted

Hey all! It's been a while since my last post so here's what has happened since my new ring and pinion.

 

Vibration seemed fixed with the repair and factory wheels and tires (tested for 2 days of driving) so I put my aftermarket wheels and tires back on. Vibration again. Had them road forced. Still vibrated. Traced to one particular tire and had it replaced. Better but still vibrated. Took to another place for a another road force. Same vibration. Replaced with original wheels and tires. Still had vibration. This Friday last I picked up a 2011 2500 Denali Diesel. 30k miles on it. I am test driving it this weekend. The thing rides and drives like any truck should.

 

Noticeable differences already;

 

You can drive at hwy speeds and have a smooth ride.

You can drive at hwy speeds and have just the drivers window down without the "flutter".

The climate control doesn't blow cold air when the engine is cold. It "waits" until the engine has temp then blows.

The front headlamps don't fog over.

The electronics in the display don't lag.

The seats are more sturdy.

No constant downshift on slight acceleration. (Granted this is a diesel but still, that was annoying...)

The list goes on and on.

 

GM- You have issues with your new truck line. Own up to them. Fix the problem instead of burying your head in the sand. I loved the look of my new 2014 but I hated driving it. Literally HATED driving it. That shouldn't be.

 

I will most likely end up with this truck. I like the look and I like the drive. More truck than I need but hey, it's only money....

 

GM- If you want more info, please reach out to me in a PM. I would be happy to discuss my experiences with your new truck in more detail....

 

All the best to all that are having issues. It's no fun. 5bcf171ea9a6ec2a95e86dd832ebe03e.jpg

Curious as to what kind of MPG's does the 2500 get?

Posted

What type of legal advice did you take if you don't mind me asking?

I am still in a situation I can not talk freely yet, but I did contact legal advice and am following through with a fix it right now or take it back offer.

My truck has more then just a shake, it has all the issues listed in this forum including rusting frame and bad shifting and shuddering transmission.

Start with consumer lawyers they seem to understand our rights better then other avenues.

Do lodge complaints with BBB and the NHTSA concerning our shaking, under powered headlight trucks.

Remember it is the manufactures responsibility to meet the advertised warranty at time of sale, not the dealers.

So all your attention should be directed towards GM and that not all their trucks shake or have this issue as per other test drives you have taken.

So why is my truck not preforming like the others, keep note of the vin # you tested.

Document everthing, keep calm and organized.

  • Like 4
Posted

So it's been about a week since I had my 2 out of round tires replaced. The shake has gotten worse, it was a lot better a first but now it's just as bad as before I got these tires replaced. Think I am going to try something radical. There is this a product called dynabeads by this company http://www.innovativebalancing.com Apparently you put this stuff in your tire and it continuously balances the tire. Anyone ever try something like this?

It definately couldn't hurt to try, I may just give it a try. Sure would be something if this fixes the problem.

There are several companies that sell a similar product. I think this bead balancing concept started on the big rig tires.

Posted (edited)
Found this on youtube comments on this vid

Has anyone tried this to stop or lessen the shake?

Comment from video
I took mine in twice for it. The first time they said it was normal too. I didn't buy it, so i took it in the second time . They kept my truck for like 5 days. Finally they called gm. They said to shim the right engine mount 2 most inner bolts 3mm. They did this and it work! I can't hardly feel any vibration at all. There is some, but not really noticeable, so I am happy. I don't know if you watched it or not, but I have another video on here labeled "vibration on a 2014 Chevy silverado" that shows the vibration I was having.
Edited by BillsLT
Posted

My rear end was replaced and I got the truck back today. They replaced the complete rear end from disks brake to disk brake. Test drove for approximately 25 miles vibration still there between 60-65 and greater. My dealers service manager who has been totally great to deal with, really didn't know what to do. He was working a GM engineer. I will be waiting for another suggestion. So far as I have noted in my previous post. The following has not worked;

RF balancing

Michelin tires

new drive shaft

 

Then they bought the truck back and I ordered another one exactly like it. LTZ, double cab, long bed, 342 rear end, v8

Complete rear end

 

I have drove two or three loaner trucks during the past 9 months all of which have this issue.

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

    • Batteries don’t always show signs of a few years ago my vehicle started fine in the morning and took me to work. After work the battery was completely dead and I needed a jump. No, I didn’t leave anything on and the battery was only a couple months old. It was replaced under warranty. 
    • AFM is confirmed in the Corvette engine, so I'm assuming the higher volume trucks will get it as well
    • If his battery was that bad I would think it would have been showing signs before this that were ignored. Stinks that it happened the way it did in rush hour traffic, but this seems like a pretty fringe scenario. I don't mind it that bad and never turn it off. The only slight annoyance for me is the slight delay between brake to gas, but I have gotten used to it and figure if it can save a little gas why not.
    • That is a good correction. I think “severity” was probably the wrong word for what I meant. What I really mean is closer to event priority, relevance, and actionability — not “this code is severe” or “replace this part.” I agree that a truck can have a lot of trivial or historical communication codes, and if the product starts pushing alerts for every stored or low-value event, people will ignore it very quickly. So the alert logic would need to be filtered. For example, I would not want a random old communication code to generate a push notification by itself. A useful alert would probably need to be based on things like: - new vs historical - active vs stored - repeated vs one-time - duration of the event - whether it happened near the driver-marked symptom - whether it happened together with voltage drop, reset, bus-off, misfire, oil-pressure change, etc. - whether the same pattern repeats under similar conditions So instead of saying “severity,” maybe the product should organize events by affected system and priority. For example: Misfire event: Show misfire counts / roughness first, then fuel trims, RPM/load, DFM/AFM state if available, coolant/oil temp, voltage, and related DTCs. Oil-pressure event: Show oil pressure first, but only in context — RPM, load, oil temperature, coolant temperature, DFM/AFM state if available, voltage, and baseline comparison. Communication event: Show which module/network/message dropped, whether voltage dropped, whether the recorder reset, whether it was active or historical, and whether it repeated. Voltage/reset event: Show battery voltage, crank/wake/sleep state, module reset, communication dropouts, and what came back online first. That also solves the display-order problem you mentioned. The main report should not always show the same fixed list first. It should show the system that appears abnormal first, and then the supporting values for that system. I also agree that the truck already has an oil pressure gauge and MIL. The point would not be to duplicate those. The value would be in showing what else was happening before and after the warning or symptom. For example, if the MIL comes on for a misfire, the truck already told the driver there is a problem. The useful part would be: - which cylinder or bank looked abnormal first - whether it happened after an AFM/DFM transition - whether fuel trims were already moving - whether oil pressure or voltage changed at the same time - whether the same pattern happened previously without a MIL On the OBD port point, I think you may be right for a consumer-facing version. OBD is much easier for the average owner: - easier install - easier removal - inside the cabin - easier phone connection - easier data download - easier to include a pass-through port for another scanner OBD is also the right place for DTCs, freeze frame, VIN, calibration information, Mode 6, and normal scan-tool parameters. The reason I was looking at ECM-side recording is that some events may be gone by the time someone plugs in a scanner, and some powertrain-side network evidence may not be available the same way through the DLC. But I agree that if an OBD-based version can capture enough useful evidence for most owners, that is probably the cleaner consumer product. Maybe the split is: - OBD/DLC version for most consumers - ECM-side version only if it proves it adds evidence that the OBD version cannot get - shop/pro version if deeper powertrain-side event evidence is actually useful So I would not want to force the inline approach if the OBD workflow solves most of the real-world problem. Your last point is probably the key product requirement: the report should be specific to the system showing the abnormality. Not “here are 50 parameters.” More like: “Misfire-related event detected. Here are the misfire/fuel/DFM/context values.” or “Oil-pressure-related event detected. Here is oil pressure compared with RPM/load/temp/baseline.” or “Communication event detected. Here is what dropped, when, and whether voltage/reset happened first.” That is a much better way to think about the report.
    • It was all part of the tiny bit of fuel savings it goes towards what was mandated by the government. Much like cylinder deactivation. That was relaxed by the recent administration. All that doesn’t help the individual buyer. But as a whole helps the manufacturer to try to reach the previous ridiculous past mileage per gallon mandate. So yes it was mandated and added cost to the vehicle. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...