Shake or Vibration Issues

[Silver space ship]

I'm the original poster of this topic and I'm on my second truck and now have about 6000 miles on my new GMC truck. First off this one is better then the last Silverado as far as vibration but it still has some. I would say cruising speed is better but not perfect (I try to talk my self out of it having a vib at hwy speeds to keep my sanity). I don't know if I have the 73 mph vibration because honestly I don't think I've had it over 70 yet, and if I do it's not going to bother me because if in 6000 miles and I have drove over 70, well you get my point.

 

My biggest gripe is when I leave my driveway in the morning it really shakes for the first 4 to 6 miles. I've tried telling my self it's just the tires flat spotting from sitting over night but I'm really starting to think its something more because it can sit for days and it's never worse then if it just sits overnight. I started to think it was motor related so I started letting it warm up for up to 10 min and it didn't seem to help. I've read back about 10 pages now and have found 3 people with the same issues and I'm leaning more to cold tranny temps. I never thought to look at the tranny temp gauge but even after a10 min warm up the tranny probably isn't very warm yet. My ride to work sucks but the way home is always better but now that it's getting colder out I'll see if that changes.

 

There was this spot on my way home from work where my silverado shook and drove me nuts while getting up to speed and the gmc seems to be so much better, almost no shake at all but I have been accelerating faster with this truck then the last one. Today I decided to accelerate slower like I did in my old truck and I got the same vibration. The only difference is, slow or fast in my silverado I got the vibration.

 

It's been interesting comparing two trucks to each other. Some problems are the same such as moving seat issue and vibration but I really thinking the GMC (current one) might actually have more issues (mostly small) then the first one that was the first 2014 to roll of the dealer lot 10 months earlier.

[JC84]

Like I said in pervious post I have the random 75-78mph wiggle and never been faster then that. Now I have the 40-42mph wiggle that's there all the time now truck only has 2k miles. I thought about buying hptuners again to see if I can tune it out. I used to tune LS motor cars from 2003 and stopped in 2012 when I sold my camaro SS. I have tuned 50plus vehicle that have been stock all the way to being a full out race car and fixed a lot of other tune people couldn't get right. I still believe it's the tranny tune mixed with a little of the fuel mapping not being as smooth.

Edited September 19, 2014 by JC84

[skylineflyer]

Not many posts here but mine is at the dealership. They went on a test drive with me yesterday and felt the vibration. They said it's definitely not right so they gave me a loaner car so that they could assess the cause. I got a call back this morning and they said they found a defective tire. Hoping this solves my problem but with so many people on here I'm doubting this will be the fix. I should hear back by 12

[PMurray]

Replacement rear end arrived y-day and will be swapped on Monday. Keeping my fingers crossed.

 

Of the many new vehicles I've bought over the years this may be the first during its first year of production - can't think of another. Just wish I had found out about this issue before I spend nearly $50k.

[keakar]

I just need to add this before I go crazy and scream when I see another person say flat spots in tires.

 

THERE IS NO SUCH THING AS FLAT SPOTS ON TIRES UNLESS IT SITS ON PAVEMENT FOR OVER A YEAR AND DRY ROTS A HARD FLAT SPOT.

 

this snake oil BS excuse is pure flat out lies trying to find some excuse for people might believe to hope they didn't buy a lemon.

 

 

ask yourself these questions:

 

1 did they just suddenly last year completely change how they make tires?

 

2 have you ever had flat spots on any other vehicle or tire you bought that you ever owned in your life?

 

3 did they change rubber so it suddenly acts differently then is has for the last 100 years?

 

4 has every truck you ever own developed flat spots when it sat in the driveway overnight? over 6 months? over a year?

 

5 does anyone really believe a brand new flexible tire suddenly becomes hard and flat spotted just from sitting on a car lot for 3 months?

 

6 don't you think if it was a flat spot BS, then a simple tire replacement would have fixed 98% of all these trucks already? but it didn't.

 

please for the love of god stop repeating the dealer BS about flat spot tires hoping we are that dumb to believe it, unfortunately it seams some of us reaching for a fix so bad that it seams we are. flat spot tires are hard spots from dry rot and the NEVER get better, the tire has to be discarded and replaced if it has a flat spot. but, and this is what the dealer and GM is hoping for, if you drive a vehicle with a vibration long enough you eventually get used to it and may not even notice it any more.

 

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4 things that are absolutely true without question but some people are still in denial about:

 

OJ was guilty of murder

 

Hillary Clinton was directly responsible for what happened in Benghazi

 

Obama and the democrats are directly responsible for the lack of jobs and the recession we are in

 

there are no such thing as flat spots on good tires that are not dry rot and hardened.

Edited September 19, 2014 by keakar

[fondupot]

keaker is now on a list somewhere.

[Silverado-Hareek]

Keaker just became my best friend!

 

 

[KARNUT]

Mmm, I have spare cars and trucks with fairly new tires, wonder what the little bounce is I feel for a few miles when I drive them once a wk or two. Im with you on the first 3 though.

Edited September 19, 2014 by KARNUT

[Silverado-Hareek]

I mean technically you can develop some flat spots overnight on cheap tires but they usually work themselves out after driving a few miles. It is rare though and to be fair to Keaker's point, I've never had an issue with flat spots since I started driving almost 14 years ago so it's highly unlikely that's the cause of my vibrations. I think it's the tires in my case, but I'm leaning more toward cheap and defective being the contributing attributes, not flat spotting.

[KARNUT]

Michelin, Pirelli and Good year and after a few miles gone, just a few miles. I think its the heat it gets hot here. On my 14 so far no vibration.

[MJFlores]

Flat spotting is absolutely a real issue for car dealers. A heavy truck sitting on tires, on hot blacktop for a month without moving will ride rough for a few hundred miles until they return to how they were molded ie round. It's ok if you dont believe it...but flat spotting is a real occurance and the cure is to drive it..the longer it sat, the longer it takes to drive out of it. Some cheap tires, if they sit long enough are ruined and have to be replaced...you'll see a wear patern starting and you can actually feel the flat with your hand. Do you wonder why dealers ALWAYS have their tires OVERinflated on the vehicles out on the lot?...to minimize flat spotting.

[14SLTZ71]

I just need to add this before I go crazy and scream when I see another person say flat spots in tires.

 

THERE IS NO SUCH THING AS FLAT SPOTS ON TIRES UNLESS IT SITS ON PAVEMENT FOR OVER A YEAR AND DRY ROTS A HARD FLAT SPOT.

 

this snake oil BS excuse is pure flat out lies trying to find some excuse for people might believe to hope they didn't buy a lemon.

 

 

ask yourself these questions:

 

1 did they just suddenly last year completely change how they make tires?

 

2 have you ever had flat spots on any other vehicle or tire you bought that you ever owned in your life?

 

3 did they change rubber so it suddenly acts differently then is has for the last 100 years?

 

4 has every truck you ever own developed flat spots when it sat in the driveway overnight? over 6 months? over a year?

 

5 does anyone really believe a brand new flexible tire suddenly becomes hard and flat spotted just from sitting on a car lot for 3 months?

 

6 don't you think if it was a flat spot BS, then a simple tire replacement would have fixed 98% of all these trucks already? but it didn't.

 

please for the love of god stop repeating the dealer BS about flat spot tires hoping we are that dumb to believe it, unfortunately it seams some of us reaching for a fix so bad that it seams we are. flat spot tires are hard spots from dry rot and the NEVER get better, the tire has to be discarded and replaced if it has a flat spot. but, and this is what the dealer and GM is hoping for, if you drive a vehicle with a vibration long enough you eventually get used to it and may not even notice it any more.

 

-------------------------------------------------------------------------------------------------------------------------------------------------

 

4 things that are absolutely true without question but some people are still in denial about:

 

OJ was guilty of murder

 

Hillary Clinton was directly responsible for what happened in Benghazi

 

Obama and the democrats are directly responsible for the lack of jobs and the recession we are in

 

there are no such thing as flat spots on good tires that are not dry rot and hardened.

 

hopefully they don't show up on my door step because I "liked" this post, LOL

Edited September 19, 2014 by 14LTZZ71

[keakar]

Flat spotting is absolutely a real issue for car dealers. A heavy truck sitting on tires, on hot blacktop for a month without moving will ride rough for a few hundred miles until they return to how they were molded ie round. It's ok if you dont believe it...but flat spotting is a real occurance and the cure is to drive it..the longer it sat, the longer it takes to drive out of it. Some cheap tires, if they sit long enough are ruined and have to be replaced...you'll see a wear patern starting and you can actually feel the flat with your hand. Do you wonder why dealers ALWAYS have their tires OVERinflated on the vehicles out on the lot?...to minimize flat spotting.

i'll say this, I don't drive a lot. my truck sits on the driveway for a week at a time and sometimes it goes a month without being driven. I mostly use the car or motorcycle and the truck gets used mostly just for pulling the boat and this has been my pattern of truck use for nearly 35 years.

 

that said in the entire 35 years I have NEVER had any vibration or feeling of flat spots on the tires, if there was any it was so negligible that it went unnoticed completely.

 

I will concede there might be the possibility of ever so slightest of flattening of the tire from not moving in a while but this it corrected before you leave the driveway with a few revolutions of the tire. I had my truck parked in the driveway for 8 years and never moved while recovering from health issues and when I finally took it for a drive the tires were perfectly smooth as always even though it needed new rotors and brakes from rusting in the driveway. if flat spotting EVER had a chance to be a problem then I think after 8 years it would have occurred but it didn't so I dismiss you notion with the concession that it may occur at some small minor unnoticeable level that cant be noticed or detected or used as an excuse for causing vibrations

 

the ONLY type of flat spot you would feel in the tires is if it gets dry rotted and harden that way and this type of flat spotting never goes away.

 

the notion that a brad new tire can have noticeable flat spots to cause it to be felt when driving is laughable on its face and insulting to anyone who has ever owened a motor vehicle. maybe someone who just fell off the turnip truck might believe such malarkey but as a wise man once said "don't pee down my back and tell me its raining"

 

 

keaker is now on a list somewhere.

I can feel the crosshairs of a liberal nut jobs rifle scope on me at this very minute lol.

Edited September 19, 2014 by keakar

[skylineflyer]

Not many posts here but mine is at the dealership. They went on a test drive with me yesterday and felt the vibration. They said it's definitely not right so they gave me a loaner car so that they could assess the cause. I got a call back this morning and they said they found a defective tire. Hoping this solves my problem but with so many people on here I'm doubting this will be the fix. I should hear back by 12

 

It didn't help. Should I be surprised.

[Strykers_Inc]

Don't worry too much about it Keakar, liberals are afraid of guns......chances are they'll miss!