Shake or Vibration Issues

[Shu]

Something else to try, Slip the transmission up into neutral and let engine idle for a few seconds while traveling at that speed.

[skylineflyer]

Something else to try, Slip the transmission up into neutral and let engine idle for a few seconds while traveling at that speed.

 

I've tried that numerous times. It still shakes. All these violent shakes have taken a toll on my truck as it creaks and rattles everywhere now.

[Shu]

I've tried that numerous times. It still shakes. All these violent shakes have taken a toll on my truck as it creaks and rattles everywhere now.

Well that isolates it to behind the transmission in the drivetrain and or, suspension and frame.

[Jesse Davidson]

I've been fighting for almost two years and still nothing has been fixed. Here is my video you naysayers.

 

 

 

skylineflyer,

Thank you for posting. Yours is significantly more than my slight buzz. I agree this is not something GM should ignore. Over time a shake like that will have a negative affect on lots of other parts. Can you test the water bottle on the transmission tunnel for me? And then flip up the console and place the water bottle on the seat and see if it still shakes like that?

 

 

Looks Line Mine!!!!

 

 

[Britt Lifsey]

I'm not sure what worries me more...the vibration some owners have or all the owners running around at 80mph concentrating on filming a water bottle shake, road conditions and speedometer instead of driving. Can't y'all get a passenger to ride along and man the camera?

[KingstonMom1976]

so today they checked the rear shocks as I had asked because besides the vibration it handles a bump like an old tractor. Sure enough, one leaking and the other weeping. Ordered in two and they will work on vibration issue again. Still chalking it up to bad tires...but I am not convinced

[dave07]

https://vimeo.com/165367388

 

My "vibration".

 

 

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[longhorn_cop]

This time im told its a bent wheel. New wheel being ordered. They really have no idea what to do

 

 

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[paxtonman]

skylineflyer,

Thank you for posting. Yours is significantly more than my slight buzz. I agree this is not something GM should ignore. Over time a shake like that will have a negative affect on lots of other parts. Can you test the water bottle on the transmission tunnel for me? And then flip up the console and place the water bottle on the seat and see if it still shakes like that?

 

Bingo, we have a winner! Over time every nut, bolt, weld, hinge, etc. is going to be compromised by a constant vibration. Pieces we haven't thought of will be affected. Think of how these are assembled with all the plastic parts simply held in place by clips. These trucks are real life rolling stress tests and the manufacturer is hardly paying for the research. Brilliant on their part don't you think?

Edited May 5, 2016 by paxtonman

[steelcity]

 

Bingo, we have a winner! Over time every nut, bolt, weld, hinge, etc. is going to be compromised by a constant vibration. Pieces we haven't thought of will be affected. Think of how these are assembled with all the plastic parts simply held in place by clips. These trucks are real life rolling stress tests and the manufacturer is hardly paying for the research. Brilliant on their part don't you think?

If you ride around all day, every day, at 80 mph constantly looking for a vibration maybe. Do these trucks vibrate at all speeds, from 1 to 77 mph? Or just 78-79-80 mph?

Edited May 5, 2016 by steelcity

[longhorn_cop]

Mine vibrates randomly in the 30s then stops and picks back up around 70-85 ish. Damndest thing. Heck sometimes on long nonstop trips it will vibrate at 80, then go away midtrip but return before i ever stop but still going 80 ( we have toll roads with 80-85 mph limits here).

 

 

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[tnchevy]

 

Bingo, we have a winner! Over time every nut, bolt, weld, hinge, etc. is going to be compromised by a constant vibration. Pieces we haven't thought of will be affected. Think of how these are assembled with all the plastic parts simply held in place by clips. These trucks are real life rolling stress tests and the manufacturer is hardly paying for the research. Brilliant on their part don't you think?

You may think so but probably not. My work trucks constantly vibrate when on the interstate due to AT tires that are always out of balance due to lost weights and/or mud in the rims. Every work truck I have ever had ends up being like this and I drive them to 120k miles or so before I get a new one and no parts have been falling off.

[14silverado4.3]

Added the Range AFM, it took away all the vibrations associated with switching the AFM on / off / confusion.

 

There still remains some vibration. I do know that I have a rear tire that is causing some of it due to a tire rotation moving the vibe from front to back. That is getting fixed Monday (I hope).

 

I am also going to a mechanic Friday to review whether my front struts / shocks are toast as the ride is harsh in the front end. Every imperfection is felt in the steering wheel which I may interpret as a vibration.

[abominable z71]

You may think so but probably not. My work trucks constantly vibrate when on the interstate due to AT tires that are always out of balance due to lost weights and/or mud in the rims. Every work truck I have ever had ends up being like this and I drive them to 120k miles or so before I get a new one and no parts have been falling off.

Agreed, the factor of safety engineered into the parts especially fasteners is well above the stresses from the vibration and the critical parts are going to be fine. But all the compression style plastic clips that hold on trim pieces are not. My truck has 21k on it after 1 year and the interior has developed rattles in 4 locations, both front doors, something under the drivers side dash and the passenger side rear seat time to get a role of adhesive foam to quiet things down.

[Shu]

I rode a Harley Sportster and have wrenched on dirt race cars for years. Vibrations will tear things apart over time. The mirror stems broke, tail light broke, license plate bracket broke, and an 1/8" thick steel tach bracket broke in half and all due to a 'buzz' in the bike (solid mounted unbalanced engine to frame). As noted above, rattles will become numerous with time. The seat frame is probably going to be the first part to fail as these trucks tend to centralize the vibrations to the center front seat. The buzz in my truck is very faint. Most noticeable around 60 mph and then is smooth at 70+. To me it feels harmonic. I think the frames are now rigid enough that other areas like suspension bushings, shocks, cab bushings, engine mounts, transmission and transaxle mounts, etc all are now allowing normal chassis vibrations to be felt. This is why some of the things like new shocks, changed ride heights, clamped rear springs, shimmed engine mounts, etc all have had some affect. With the frame so rigid, alignment of all parts becomes even more critical. Someone posted their vehicle alignment specs on here a while back and I noticed the whole rear end in that truck was toed to the right. A simple issue like that on a rigid frame can cause a harmonic vibration. A slightly out of round driveshaft would have been masked in a less rigid frame, but now it rears its ugly head. etc.

 

 

EDIT: I did the water bottle on the transmission tunnel test again this morning and perfectly still except for the horrible Illinois roads.

Edited May 5, 2016 by Shu