Jump to content

Shake or Vibration Issues

Silver space ship
 Share

Recommended Posts

Fishingbear Enthusiast

Fishingbear

Posted
Posted

GM is offering me a new 2015 LTZ with 500 miles to replace my vibrating 2014 LT with 8000. My payment will stay the same.

 

Also, the new one does not have a bad vibration at this time. Should I agree to the trade?

 

GM made the same offer to me and I took it. I had over 14,000 miles on my 2014 and they could not fix the vibration. I had multiple tires, road force balances, new drive shaft replacement, and "tweaks" to my ring gear by a field service engineer (FSE) and none of it fixed the vibration. I had 5 trips to the dealer and a total of 25 days out of service before I filed a defect notice (lemon law) with the state of Florida and GM. GM didn't even attempt the final repair because they already knew they couldn't fix my truck. Since GM didn't want to have a lemon on the title they offered me full MSRP trade value on my 2014 plus additional money to cover the dealer fee, window tint, bed liner, title fees, and license plate fees. Initially they tried to get me to pay $4500 for "usage" based on the miles I had driven. I told them that $4500 was unacceptable based on all the trouble they put me through and that I was refusing their offer and pressing on with the lemon law process. They then waived the usage fee if I would agree to "trade assist" in lieu of the lemon law. I had to pay $300 out of pocket because the 2015 MSRP was $800 more (minus $500 for the tint and bedliner). I also got a new loan with another bank at a lower APR because the interest rates were better than when I purchased my 2014. The entire process took over 90 days after I filed the defect notice so you will need to be patient. Good luck! Two weeks after I got my 2015 I noticed my 2014 on their used lot as "certified pre-owned."

  • Like 1
  • Replies 12.9k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

csckickass
csckickass

Well folks, I did it. After all the failed attempts at the Chevy dealer I traded it in for a 2015 Ram 1500 Larame. I have to agree with the other folks on here that have done the same thing, it was th

mafd2
mafd2

Apparently you and the other customer reps don't care. If you or GM would care y'all would put more effort in the matter. Just coming on the forum and stating the same repetitive posts and being a 3

DALaws
DALaws

Well I have some good news and bad news about my truck vibrations. Good news is that my truck has a significantly less vibration at speed. The bad news is my truck has significantly less vibration. Fo

Posted Images

14SLTZ71 Enthusiast

14SLTZ71

Posted
Posted (edited)

GM is offering me a new 2015 LTZ with 500 miles to replace my vibrating 2014 LT with 8000. My payment will stay the same.

 

Also, the new one does not have a bad vibration at this time. Should I agree to the trade?

what do you mean when you say "does not have a bad vibration"? Does it have a vibration or not? Or are they "good vibrations"? Lol

Edited by 14LTZZ71
PMurray Enthusiast

PMurray

Posted
Posted

Wouldn't 5 thou be .005"?

yojo Enthusiast

yojo

Posted
Posted

It's so sad to see more and more trucks being added to the list :tear:

 

Just think of the people who have not taken the time to search this issue

out, like I did until the service manager stated " Don't believe everything you read

on the internet " I was a member here long before this issue came up on the '14

Silverado. and the best information I received was from this very site !

 

I strongly can not stress how very important it is to have a semi calm attitude with

your dealer, it was his persistence with GM that kept my name on the top of GM's

list and my nice but constant calling GM customer service to make them aware I was

in no way accept anything less then what was fair, my case took a bit longer because

of the items I added, and I gave GM six weeks to produce a truck that did not vibrate

or delay on the up shifts or have excessive injector noise.

 

It was a sad day for me when I finally realized that GM had no interest in keeping

me a GM customer. and I've moved on and I'm glad that I've been able to help

quite a few people with this issue.

 

This vibration issue is snow balling at a very extreme rate, and I see nothing good

coming from it until GM acknowledges their engineering mistake and takes care of

it's customers in the same good faith that people purchased the trucks to begin with.

 

All in all, ' What goes around will come around ' it's just a matter of time !

I was told by my "service manager" and 2 others from GM assistance not to believe what I read online,I replied to all of them by stating..You should be glad there wasn't a internet between 1980 and 1986 because with the crap that GM built back then there wouldn't be a GM today. I know because I was able to make a pretty nice living off of repairing them!

Blacksilver14 New Member

Blacksilver14

Posted
Posted

I have the same problem i took my truck back to the Dealer they lent me another truck for two days, i didn't feel Any issues with this truck. First they change the front tire. After a week the vibration continued can't even tell where was coming from... Steering wheel, tires, gas pedal etc... I called my service advisor again they lent a diferent truck and felt the same issue. After a week i was informed my truck was ready and the procedure was to replace the Four tires. I told my service advisor about the vibration on the loaner he told me the issue was the quality of the tires. Again after a month the vibration is back!!!! Planning to take my truck back soon

southern_sierra Enthusiast

southern_sierra

Posted
Posted

I was told by my "service manager" and 2 others from GM assistance not to believe what I read online,I replied to all of them by stating..You should be glad there wasn't a internet between 1980 and 1986 because with the crap that GM built back then there wouldn't be a GM today. I know because I was able to make a pretty nice living off of repairing them!

Wonder how the service manger and gm assistance would feel if they had spent $50,000 on a new truck. Would they just set back and enjoy the vibrations.

  • Like 1
Wrench589 Enthusiast

Wrench589

Posted
Posted

Wouldn't 5 thou be .005"?

Yes, "5 thou" is 0.005". While we're talking about it, I will add that you may also hear the term "mil". 1 mil is 1 thousandth of an inch, or 0.001". Don't confuse it with millimetres! A mil is NOT short for millimetre. (Mil is often used for film thickness, such as sheet plastic for example).

Wrench589 Enthusiast

Wrench589

Posted
Posted (edited)

All in all, ' What goes around will come around ' it's just a matter of time !"

 

Very true statement. In fact, it already happened with GM. The consumer already spoke, and GM was out of business. Except, the government intervened in the evolutionary process of the free market, and propped GM back up. In some ways, I think us consumers would have been better served had the fed let GM go tits up, then all the GM senior management would have been canned, and after the receivers finished a better business would have emerged that likely would "get it". As it went, GM basically learned that no matter how crappy a job they do, no matter how poorly they treat their customers, they will prosper. It's like dealing with a spoiled child...if there are no consequences for their bad behaviour, how will they ever learn to behave properly?

 

And yes, I got the same crap at my dealership about not believing what you read on line. I actually could see fear in their eyes, to tell you the truth. The know the power of the internet, and how it can and will expose them for what they are. They are trying to hold on to their traditional techniques of denial (we've never heard of this problem before), but with owners able to easily and instantaneously connect online, those days are numbered. The more we put every move they make, every word they say, under the microscope and online, they more truthful they will learn to be and more importantly, their behaviour will begin to serve us, instead of the other way around as it is right now.

 

Let me tell you about an encounter with a retired GM regional service manager at a wedding, about 20 years ago. After chatting about cars for an hour or so over dinner, he finally said something like "you know, after years of doing this job, I finally came to the conclusion that there really are no problem cars, just problem customers!" This would have been through the 80's, when GM sent junk out the door. Imagine that was the attitude of senior GM management. Imagine how much of that same attitude lingers on inside the corporate hallways of big blue. Imagine how much of that attitude is woven into every TSB and GM "corporate standard" to this day. Bad habits are hard to break, especially when there are no consequences.

 

After the bailout, I swore I would never buy another GM product as long as I lived. I broke that promise when we bought this Denali, so I own this mistake. I knew better and I will have to live with that. But let's all hope test what goes around does in fact come around a second time!

 

In the meantime, let's keep the fires burning on what's going on with this platform. The more informed every owner is, the better he or she can deal with their vehicle and their dealership.

Edited by Wrench589
  • Like 1
tlevine99 Enthusiast

tlevine99

Posted
Posted

2014 Rocky ridge vibraton / shaking . Gm saying. That I have to pay for the lift kit to be taken off so they can fix the problem . Rocky ridge saying its Chevys problem. Never by Chevy and or Rocky Ridge . Continuing to follow this complant to the end .

2014 Rocky ridge vibraton / shaking . Gm saying. That I have to pay for the lift kit to be taken off so they can fix the problem . Rocky ridge saying its Chevys problem. Never by Chevy and or Rocky Ridge . Continuing to follow this complant to the end .

Wrench589 Enthusiast

Wrench589

Posted
Posted

I know I've brought this up before, but do any of you notice any difference in the vibration intensity between 2wd and 4wd auto? On our Denali, there is a distinct difference. In 2wd, there basically is no vibration. In 4wd auto, very noticeable vibration felt in the steering.

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
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      Can it still be Assembled I?    Stribeck says that we need a certain amount of viscosity under conditions of load and velocity to prevent two surfaces of a know roughness from tearing each other asunder. And we have marketing trying to tell the masses that those two surfaced require less of that commodity due to more exact limits being placed on the same old clearances. We also know that there are limits to how hard something can before it becomes to brittle to be viable and to smooth to 'wet' the surface and that both of those conditions have been known and met since about the Second World War.    That viscosity value shook out at 10 centistokes at 212 F just under a hundred years ago.  Give this a look: [Anton Parr]     What is advertised is the Kinematic viscosity (mm2/s) or that which has been density adjusted but the value we are after is the dynamic viscosity (mPa.s) or true viscosity. You can see that this number is dependent on density thus base stock and temperature. You can also see that an SAE 30 doesn't reach that value in this example. However an SAE 30 that is at the upper end of the SAE 30 range; 12.5 cSt (mm2/s), might. 12.5 * .83 = 10.375 (mm2/s). If you could find an SAE 30 at the upper end these days.   Then there is the complication of viscosity modifiers or VII or VM, whatever you wish to call them. Polymers added to very thin base oils, perhaps 3 to 6 cP oils, that will meet the SAE *W30 spec at 'tested' shear rates and 100 C/212F  target temperature. So a polymer fortified base that is a fraction of the 10 cP requirement Stribeck insist upon.   This could be all well and good if those polymers didn't have two very problematic 'features'. They shear or loose viscosity both 1.) permanently and 2.) temporality. And they do both omitted in the advertised data with the distinct  purpose of deceiving the consumer of the actual operating state of the fluid. I've shown the example of Warren Oils COSTCO 10.91 cSt 5W30 formuation several times where the 100 C HTHS value is 6.9 cP!! That's the temporary shear down and with and SSI or shear stability index of 9.4 cSt. Note the intentional deception in using mixed units?    After a short while that 9.4 cSt oil has a viscosity corrected dynamic value of 7.8 cP. But as the SSI is still within the range of an SAE *W30 whose lower value is 9.3 cSt.    This allows them to continue to call this SAE 16 weight oil a 30 weight, the cake, and still meet the API requirements for fuel efficiency IMPROVEMENT mandated by the EPA. The eating of the cake. By the time you've worn out your motor doing the responsible thing by adhering to the warranty requirements, (the stick), you get deprived of the carrot, wear control. So sad, to bad.   So what can be done? Do I need actually say? [Anton Parr]       Even this must be monitored if the oil is on the low side and the VII an organic or you opt for a 0W40 with an even lighter base oil and more / higher MW VII. (Note the lower density of the 40 weight versus the SAE 30 mono-weight?)    There is another workaround. Temperature. An SAE *W30 run at a bulk temperature of between 180 and 195 F.    Being the belt and suspenders sort I am I do both. Run it cook and run it heavy.    In Part II I'll work the AW package. 
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      So, do I go elbow-deep on this thing or list it for sale and play dumb? Seems to "runs good."   I'm about $1200 away from having: -a rebuilt injector ($300) -a new cat ($250) -a new cat back exhaust (OE style) ($300) -a new AC compressor ($200) -AC refrigerant charge ($150)   In theory, this should rectify the obvious detracting issues from its value and operability. Cold AC with a non-squeaking AC pulley both sounds and feels good. An exhaust that isn't cut/hacked in 17 different places and doesn't vibrate on a crossmember would make it sound and feel less janky. A working cat would help the stink, and will save the earth, but *if and only if* the fuel system is working properly, which would also address the intermittent "rich" CEL.   Heard a good one... CEL for "Rich condition" means you haven't spent enough money on the truck lately, and it's letting you know.   Rebuilding the injector would seem to be the most important part. Replacing the cat would be secondary. I don't think mine is plugged or overly restricted, but it might be a little restricted? I have no good way to tell other than seat of the pants feel. I hate the smell.   The current theory is I have a rich idle problem: A bad fuel pressure regulator, or a leaking injector(s) being the highest probabilities. I already replaced the FPR but that doesn't mean its replacement isn't also bad. It was a new part from Dorman, but the packaging looked like it had been sitting on a shelf for 20 years.   This is the (single) upstream O2 sensor shown at idle. I'm getting a lot of "rich" it seems. Sometimes it stays high like that and doesn't drop down. That makes me think it's processing injector leaks or a partially stuck open injector.     Other times it looks like this. Nice oscillations between rich and lean, which is what I think it should be. Under load and at speed, the oscillations are nice and tight and uniform looking, high and low.     Fuel trims suggest the PCM is compensating pretty hard at idle to pull fuel out. But it's not enough to trip a CEL. Something about slowing to a stop: brake vaccum booster, EGR, or the EVAP purge is delayed, or there's pooled fuel in the intake again that's draining into a cylinder is enough to set the CEL. Of course, in two days of driving, it hasn't set. I was hoping to actually look at the freeze-frame data when it sets. IAT is high because it's idling on an 83 degree day here.  
    • Another JR
      Gasser Subforum Has Been Quiet - - So, Regenerative Braking and Using L10

      By Another JR · Posted

      Have considered installing a DC to DC charger in your camper to replace your isolator?  
    • newdude
      Gas fill door

      By newdude · Posted

      Common failure.  You need to replace the fuel door housing.   The painted cover transfers over to the new housing.  To remove the old one there is 4 spots where you poke the plastic to release it.  
    • newdude
      Gasser Subforum Has Been Quiet - - So, Regenerative Braking and Using L10

      By newdude · Posted

      No such thing as regenerative braking on a pure ICE vehicle.     Regenerative braking is the re-capture of energy from electric motors and stores it in the battery pack.  So hybrids, PHEV and EVs have regenerative braking.     What you are seeing is the charging system changing modes is all.  Its likely entering charge mode for some sort of reason is all.  All of the charging modes will be listed below.   As for L10 vs D.  L10 turns off automatic grade braking.  L10 puts you in control of grade downshifts where in D it will automatically do it based on brake pedal position and other factors.  Otherwise L10 and D drive exactly the same aside from that one aspect.    Battery Sulfation Mode The BCM will enter this mode when the interpreted Generator output voltage is less than 13.2 V for 45 minutes. When this condition exists the BCM will enter Charge Mode for 2–3 minutes. The BCM will then determine which mode to enter depending on voltage requirements.   Charge Mode The BCM will enter Charge Mode when ever one of the following conditions are met:   Windshield wipers are ON for more than 3 s. Climate Control Voltage Boost Mode Request is true, as sensed by the HVAC control module via serial data. High speed cooling fan, rear defogger, and HVAC high speed blower operation can cause the BCM to enter the Charge Mode. The estimated battery temperature is less than 0°C (32°F). Battery State of Charge is less than 80%. Vehicle speed is greater than 145 km/h (90 mph) A current sensor malfunction exists. System voltage is determined to be below 12.56 V When any one of these conditions is met, the system will set targeted generator output voltage to a charging voltage between 13.9–15.5 V, depending on the battery state of charge and estimated battery temperature.   Fuel Economy Mode The BCM will enter Fuel Economy Mode when the estimated battery temperature is at least 0°C (32°F) but less than or equal to 80°C (176°F), the calculated battery current is less than 15 A and greater than −8 A, and the battery state-of-charge is greater than or equal to 80%. Its targeted generator output voltage is the open circuit voltage of the battery and can be between 12.5–13.1 V. When fuel economy mode is active, the generator is not charging, only maintaining open circuit battery voltage. The BCM will exit this mode and enter Charge Mode when any of the conditions described above are present.   Headlamp Mode The BCM will enter Headlamp Mode when ever the head lamps are ON (high or low beams). Voltage will be regulated between 13.9–14.5 V.   Start Up Mode When the engine is started the BCM sets a targeted generator output voltage of 14.5 V for 30 s.   Tow/Haul Mode (if applicable) Pressing the Tow/Haul Mode button located on the center stack, the vehicle system voltage is raised and the remote (non-vehicle) battery will be charged. Having the headlamps on will raise the system voltage and if the Tow/Haul button is applied it will not serve any purpose. The voltage is regulated between 13.9-14.5 V.      

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...