Jump to content

Recommended Posts

Posted (edited)

A few other notes i forgot to mention. With my tune i dont have V-4 anymore either. You woukd think the dealer of the first buy back would ship that truck to GM & the engineers would jump on finding the problem & getting us a fix. Guess not!

im thinking the same thing, take a vibrating truck and a truck with miles on it that's smooth and trouble free.

 

on Monday swap tires and rims as a set and retest both

 

on Tuesday swap out drive shafts and retest both

 

on Wednesday swap out tranny and retest both

 

on Thursday swap out rear ends and retest both

 

on Friday swap engines out and retest both

 

now in one week you have found the problem or at least isolated it to one item to be further investigated

 

GM are you listening? this is the quick and easy way to solve this problem, engineers making millions of dollars scratching their heads looking over computer screens is not the way to troubleshoot mechanical problems.

 

swapping out tires and rims and if that doesn't do it, having your service departments going on record as saying that you build trucks that are supposed to vibrate and every truck they have on the lot vibrates too, is NOT a good way to handle this problem

Edited by keakar
Posted

Another Forum found the following:

 

Well I got a call today from dealership and they said my differnetial gears and drive shatf were warped and they are replacing the whole thing. They said they have seen 2 others like this.

 

Well it appears the differential gears were out of round and GM wants them to replace the complete differential. Its on order so another 3-5 days without my truck!

 

 

Has anyone tried that with their dealer?

Posted

Well I went to dealer today for ride with serv mgr, He said zone rep was there today.. was told that gm believes the problem is with ring and pinion and rear shocks. Said they have been inspecting rear axles and checking specs on ring and pinions and THINK they may be on to something. We didn't go out for a ride he was able to describe all of my concerns. Told me gm KNOWS they have a problem and are working to solve it. Advised me to call the gm line and open a case, Apologized for the inconvenience, wanted to fill my gas tank (just filled up last night..story of my life) Advised me at my dealer alone there is over 20 cases.

 

Posted

Just to make it clear, my rear axle was replaced as a whole axle assembly with brakes included.

This axle change made no difference to my vibration. Ring and pinion gears could be bad in some trucks, but this vibration in our trucks must be a much bigger problem then simple swap out.

Posted

I had a buyback in july. New truck did not vibrate during the test drive. As soon as I took on a trip the vibration started. My dealer replaced the complete rear end. Truck still vibrated and makes noise. My dealer is going to buy back again and exchange for a 2015.I ordered it yesterday.

Posted

I had a buyback in july. New truck did not vibrate during the test drive. As soon as I took on a trip the vibration started. My dealer replaced the complete rear end. Truck still vibrated and makes noise. My dealer is going to buy back again and exchange for a 2015.I ordered it yesterday.

And if the third one vibrates too your dealer is going to buy it back and you will order another 2015? :rolleyes:

Posted

As long as people continue buying these trucks, GM has no incentive to eliminate the problems. Look like some stubbornly refuse to admit the obvious.

Posted

Nitrogen is a scam don't pay for it. These tires fluctuate in pressure just as much as every other tire I've ever owned in life that was filled with regular air. Keep in mind the composition of regular air is 78% Nitrogen anyway, so if you pay to have your tires filled with pure nitrogen you're paying to take that amount from 78%Nitrogen/22% Oxygen and other gases to 100% nitrogen. That seems like a total waste of money to me and the world has gone on just fine for years with regular air in the tires. That's my $0.02 on this issue.

The nitrogen they put in the tires is not 100% pure. Small nitrogen generators are not capable of producing anything close to 100% nitrogen. this is all one gigantic scam, similar to waxing a truck and Scotch garding cloth seats for $ 400.

Posted

There is a possibility GM knows of the issue and has no idea what it is. It would he nice for them to state that and stop selling the trucks but it would be a PR nightmare. MY vibration comes and goes with the different stretches of highway so it is not like some have described. Since it does not bother me hugely (I don't drive much highway) I will patiently wait to see if GM comes through.

Posted (edited)

I have a 2014 Silverado Z71 LT with the Silverado Shake.I have road force bal my tires.have shim the motor mount.still have the shake.but then I replaced the trans mount with a heavy duty mount TCI part number 952500 it is a lot better.

Edited by wotjohn
Posted

There is a possibility GM knows of the issue and has no idea what it is. It would he nice for them to state that and stop selling the trucks but it would be a PR nightmare. MY vibration comes and goes with the different stretches of highway so it is not like some have described. Since it does not bother me hugely (I don't drive much highway) I will patiently wait to see if GM comes through.

So the obvious solution to the problem is changing the model year number. 2015 is not the same as 2014 so it follows that 2015's must be vibration free.

Posted (edited)

There is a possibility GM knows of the issue and has no idea what it is. It would he nice for them to state that and stop selling the trucks but it would be a PR nightmare. MY vibration comes and goes with the different stretches of highway so it is not like some have described. Since it does not bother me hugely (I don't drive much highway) I will patiently wait to see if GM comes through.

My take on it is that they know what the problem is but there are numerous causes ranging from cheap tires to improperly balanced shafts to badly assembled transmissions and differentials. To fix all that would require so much money that it is economically not feasible for GM to do it. So they will continue to pretend that there is no problem and if someone insists on a fix, they will replace a few things until the owner gives up.

Edited by pm26

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

    • New tires are on, Cooper Discoverer Road+Trail AT's in 235/75/15. $100 per tire, after $10 AAA discount. Plus install ($100), disposal fees, and taxes.   The new tires ride nice. Catch 22, new tires, I love it again! But I feel like I've been through the wringer with this rig, and maybe I don't need this kind of headache right now. Wait until tomorrow, I'll probably love it again and keep it another week.   Never a dull moment: Got a CEL driving to the tire shop, P0172 bank 1 too rich. Oh lordy, really? I've been enjoying an emoji-free dash for too long, apparently. I popped the hood at the shop and I think there was a vacuum leak very close to the intake. Cleared the code and put a bunch of miles on it going home, code never returned. My fix was zip-tying the line on the vacuum reserve ball because the hose won't stay seated. It's either that or the fuel pressure regulator has an issue again or an injector is leaking. See why I'm getting tired of this one?!   In the gas price thread I recorded 19mpg on the last tank in fairly mixed driving and some higher-speed highway (70). I also don't have the lower engine shield installed right now, and that would help with diverting a lot of wind underneath the truck.   Not too long ago, a green '96 4-door 4x4 came up for sale with less than 1,000 actual miles. There was a story there but it was real, and the place wanted like $25k for it. Would be fun to have a NICE example of one of these, but not too nice. The joy is driving them.   That's it for a while...family and social stuff all weekend, no time to play with my Hot Wheels in the garage for the next couple of days.      
    • $5.19 after Kroger discount for 87 today. Moses!   Somehow I've already put 560 miles on the Blazer with the last tank clocking 19mpg.
    • I have a 91 GMC SIERRA 1500 4.3 liter. My dipstick broke. Can someone tell me how long is the oil dipstick. Local Part stores do not stock the oil dipstick. If someone can tell me the length. I can match up an aftermarket one. Thank you. 
    • Assembling a Word Puzzle   A sentence in a famous sermon says:    “Happy are those conscious of their spiritual need, since the Kingdom of the heavens belongs to them".   Forget it was a sermon and forget its religious nature. Assemble the puzzle. What did he say? I'm only going to unravel the part underlined.... Keep it simple and out of the ditch. It's a word puzzle not a religious class. I'm not writing a book. Okay..   By saying that people conscious of that stated need will receive; the implication is that there are also people that are not conscious and thus deprived.   But this one sentence also says that ALL people have this need, not just the ones aware of it.   NEED will try to lead you to satisfying it. You're thirsty, you seek water. You're hungry, you seek nourishment. You're cold, you find cover. Lack of awareness is a choice. So when he says "conscious' he isn't saying simply aware but aware and active in satisfying that need.    That's allot of information for eight words. This man knew how to craft a sentence...   Give that some thought the next time you read an advertisement or a book. 
    • My gas fill door does not stay closed. Not sure what happened, but it works its way to about a inch open every trip. Need a fix to this. 2020 Silverado 1500.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...