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Shake or Vibration Issues

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scooter484 Enthusiast

scooter484

Posted
Posted

Either the tire/wheel assemblies have excessive radial force variation, the rear driveshaft (propshaft) is out of balance or the right side engine mount needs to be shimmed 3 mm. Those are the only vibration issues that I have seen with a K2XX truck.

I don't understand what "shimming" a motor mount would accomplish? I can buy the driveshaft and radial force variance but the motor mount throws me.

 

Can you explain how that would make any difference?

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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

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abominable z71 Enthusiast

abominable z71

Posted
Posted

I don't understand what "shimming" a motor mount would accomplish? I can buy the driveshaft and radial force variance but the motor mount throws me.

 

Can you explain how that would make any difference?

Some trucks had a clearance issue on the motor mounts that required a shim to prevent the mount from grounding to the frame. Basically the two metal pieces on either side of the rubber isolator do not have large enough gap between them and they come into contact with one another. They put in a 3mm shim and it solves the issue. There's a few posts on here about it, but it is a separate issue from the high speed vibe. The motor mount shim eliminates vibrations felt when the truck is at idle.

Brenden C Enthusiast

Brenden C

Posted
Posted

High I have a 2015 Silverado 1500 CrewCab. It also has vibration issues.

The first service they did road forced balanced my tires. They were out of balance. That did not fix the issue.

 

The second service they put it on the picoscope. Then they changed my ring and pinion. And put the picoscope back on it said it was in range but it's had a vibration at 45 mph. I drove it and it was still vibrating the same.

 

Third time it's in for the vibration. They put it on the picoscope and said its in range again.

My question is what is in range and what is a good picoscope?

PMurray Enthusiast

PMurray

Posted
Posted

'14 dbl cab TX Edition radio froze (first time) yesterday. Nothing would make it work. Also noticed my android phone showed no signal (I was in an area where I should have had 5 bars). I did a restart on the phone and my truck's radio started working normally. Go figure.

tootall87 Enthusiast

tootall87

Posted
Posted

Some trucks had a clearance issue on the motor mounts that required a shim to prevent the mount from grounding to the frame. Basically the two metal pieces on either side of the rubber isolator do not have large enough gap between them and they come into contact with one another. They put in a 3mm shim and it solves the issue. There's a few posts on here about it, but it is a separate issue from the high speed vibe. The motor mount shim eliminates vibrations felt when the truck is at idle.

 

I got the motor mount shims done about 10k ago. Still get the idle vibration.

abominable z71 Enthusiast

abominable z71

Posted
Posted

 

I got the motor mount shims done about 10k ago. Still get the idle vibration.

Unfortunately even these trucks own shadow will make them vibrate. Why some do and some don't and it doesn't matter how many parts you throw at the ones that do is the million dollar question.

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Jesse Davidson Enthusiast

Jesse Davidson

Posted
Posted

High I have a 2015 Silverado 1500 CrewCab. It also has vibration issues.

The first service they did road forced balanced my tires. They were out of balance. That did not fix the issue.

 

The second service they put it on the picoscope. Then they changed my ring and pinion. And put the picoscope back on it said it was in range but it's had a vibration at 45 mph. I drove it and it was still vibrating the same.

 

Third time it's in for the vibration. They put it on the picoscope and said its in range again.

My question is what is in range and what is a good picoscope?

GM threshold spec is 22 milli G's

longhorn_cop Enthusiast

longhorn_cop

Posted
Posted

My 2015 XLT CC half ton is back in for service for the 2nd time in 22k miles. I bought it in April 2015. The damn things vibrated pretty much the whole time, but i drive my truck alot and didnt have time to take it on and get a loaner.

I did notice it will vibrate on a long hwy trip and stop vibing (is that even a word?) during the same trip with never stopping at any point. So damn odd and frustrating. Ive been looking at Fords but the trade in $ theyve offered is terrible. Not sure what my next step is. Im pissed. The loaner, 2016 XL supercab vibes a little. I def dont want another gmc truck.

 

 

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LongrangeLauber Senior Enthusiast

LongrangeLauber

Posted
Posted

My 2015 XLT CC half ton is back in for service for the 2nd time in 22k miles. I bought it in April 2015. The damn things vibrated pretty much the whole time, but i drive my truck alot and didnt have time to take it on and get a loaner.

I did notice it will vibrate on a long hwy trip and stop vibing (is that even a word?) during the same trip with never stopping at any point. So damn odd and frustrating. Ive been looking at Fords but the trade in $ theyve offered is terrible. Not sure what my next step is. Im pissed. The loaner, 2016 XL supercab vibes a little. I def dont want another gmc truck.

 

 

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SLT maybe?

 

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  • Like 1
longhorn_cop Enthusiast

longhorn_cop

Posted
Posted (edited)

Heres a pic of the pos711638b4f93cc5c71d6d01426a5ce09b.jpg

 

 

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Edited by longhorn_cop
pm26 Senior Enthusiast

pm26

Posted
Posted

My 2015 XLT CC half ton is back in for service for the 2nd time in 22k miles. I bought it in April 2015. The damn things vibrated pretty much the whole time, but i drive my truck alot and didnt have time to take it on and get a loaner.

I did notice it will vibrate on a long hwy trip and stop vibing (is that even a word?) during the same trip with never stopping at any point. So damn odd and frustrating. Ive been looking at Fords but the trade in $ theyve offered is terrible. Not sure what my next step is. Im pissed. The loaner, 2016 XL supercab vibes a little. I def dont want another gmc truck.

 

 

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How bad is the trade in value?

big_ole_truck Enthusiast

big_ole_truck

Posted
Posted

Heres a pic of the pos711638b4f93cc5c71d6d01426a5ce09b.jpg

 

 

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Nice looking POS. Hope you get it resolved to your liking.

longhorn_cop Enthusiast

longhorn_cop

Posted
Posted

Low $30s on trades. Sticker was $53 and walked out the door at $41 last April.

 

 

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C6Bill Enthusiast

C6Bill

Posted
Posted

If you paid 41 and were offered low 30's a year later, that isn't actually horrible.

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