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Information on Vibration Analysis and Diagnostic – 2014-2015 GM Trucks

fireaxxe

By fireaxxe
in Troubleshooting & Recalls

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fireaxxe Enthusiast

fireaxxe

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Information on Vibration Analysis and Diagnostic 2014/2015 Chevrolet Silverado and GMC Sierra

 

 

This seems to be a vibration campaign that has been around since January 2015. I have seen many complaints on different forums about this issue. I also have a vibration/harmonics issue that is not there all of the time but most. My issue seems to be centered around the V4 decel, and body mount configuration. This link is filled with a ton of information about various causes and repairs many of the 2014/2015 GM truck owners are experiencing. Some may be experiencing a combination of more than one issue at a time. Many more may not be experiencing any vibration at all. I do believe for those folks with the "Cadillac ride" its only a matter of time before they start experiencing vibration/harmonics issues. Its kinda nice to get this information out so that GM can streamline the repair process even further. If enough of these trucks show up for repair request for vibration they may even send out letters to further enhance quality control.

 

http://oemdtc.com/6392/information-on-vibration-analysis-and-diagnostic-2014-2015-chevrolet-silverado-gmc-sierra/3

 

If link does not work copy and past in your browser.

Edited by fireaxxe
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fireaxxe
fireaxxe

Information on Vibration Analysis and Diagnostic 2014/2015 Chevrolet Silverado and GMC Sierra     This seems to be a vibration campaign that has been around since January 2015. I have seen many com

fireaxxe
fireaxxe

My dealer has been no help. I am still waiting on my muffler parts to come in. I picked up my truck thinking they had at least ran a diagnostic vibration analysis using the pico scope and got the old

SS502
SS502

Folks, we can all post on these forums until the cows come home but it won't mean squat except to aid in the venting process...report ALL problems so there can be a collective information data report 

heavyclay Enthusiast

heavyclay

Posted
Posted

TL;dr for most i'm sure!

 

I had a good read though over a large coffee

 

But i'm glad I got to see they have a process engineered now

fireaxxe Enthusiast

fireaxxe

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Yes because of this well written article I was able to identify one of my issues. My shocks were produced before the A14743C date. I removed them and checked and sure enough when compressed they have no resistance for the first couple of inches if shock rod movement. I can also see grease leaking from my U-Joints, the one on the front propeller shaft and the front U-Joint on the rear propeller shaft (drive shaft) is leaking the worst.

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saafrican Enthusiast

saafrican

Posted
Posted

very interesting FIREAAXXE

Thanks for the link .

My 2014 is at the dealer now with the "famous"vibration problem

Im sure that when they return my truck ,I will be able to ask some intelligent questions about the work they did OR did not do.

Thanks

fireaxxe Enthusiast

fireaxxe

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Like you I have been to the dealer several times over this issue. With this new information I was able to stop by and give them specifics on what I want done. They agreed and will have the truck tomorrow morning.

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
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Great info, this needs stickied but not buried in a 700 page thread.

 

 

Sent from Off Driller Side

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johniii Enthusiast

johniii

Posted
Posted

Yes it works on phone/tablet but not lap top.

 

Sent from my XT1254 using Tapatalk

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
Posted (edited)

I had to revive this before it slipped to the bottom. I read all 4 pages and if I had this vibration issue, I would print this out and take it to the dealer.

 

>>>>>>Vibration Analysis<<<<<<

Edited by TDT
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fireaxxe Enthusiast

fireaxxe

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I had to revive this before it slipped to the bottom. I read all 4 pages and if I had this vibration issue, I would print this out and take it to the dealer.

 

>>>>>>Vibration Analysis<<<<<<

 

Thats what I did, I even told them to keep the copy of the paper. The service writer highlighted all the areas that fit the description of the various vibrations I was describing then gave it to the foreman. About 15 min later he requested that I take a test drive with him and point out the details. They gave me a loaner, my truck hit the lift and a day later they called and said several parts were on order and will be at the dealership hopefully by Tuesday. This was my 5th trip to the dealer for the same complaint. Its amazing how powerful the written word can be.

tbarn Senior Enthusiast

tbarn

Posted
Posted

 

Thats what I did, I even told them to keep the copy of the paper. The service writer highlighted all the areas that fit the description of the various vibrations I was describing then gave it to the foreman. About 15 min later he requested that I take a test drive with him and point out the details. They gave me a loaner, my truck hit the lift and a day later they called and said several parts were on order and will be at the dealership hopefully by Tuesday. This was my 5th trip to the dealer for the same complaint. Its amazing how powerful the written word can be.

How on earth did they not have knowledge of this old bulletin before?

LongrangeLauber Senior Enthusiast

LongrangeLauber

Posted
Posted

Alright guys, went ahead and pinned the thread but I also moved it to the k2 troubleshooting area. Hopefully others will see it at the top before posting. Thanks to the OP for the link, this is a big help!!

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