2015 Silverado LT Vibration/Shaking

paxtonman · August 5, 2015

Add me to the list of shakers. Live in rural Iowa but just took it to Califonria, as soon as I hit the interstate above 75 the vibration started. I still had 3500 miles to go! The worst was at 82. Took it to the dealer today. They told me they had to wait to hear from GM??

MA-Silverado · August 5, 2015

Update,

Received my truck back from the dealership last week Friday with half the problem resolved. Dealership put almost 300 miles of testing within 20+ days of them working on it. GM engineer found the exhaust manifold was causing the vibration issue. They replaced the parts and now I am vibration free as long as I am driving in 6 cylinders. The moment it goes into 4 cylinders the vibration is back at the specific speeds of complaints. Dealership says that GM knows this is an issue and is working on a resolution but he does not have a time frame for the fix. I asked if they can disable the feature and he said that it’s a possible solution but cannot disable it until GM makes it official. I will update the post when I get a resolution for the 4 cylinder issue or if the vibration comes back in 6 cylinder mode.

14silverado4.3 · August 5, 2015

MA-Silverado,

I have the 4.3 also, AFM causes a vibration.

What vibration were you experiencing in 6 cyl mode again?

14silverado4.3 · August 5, 2015

Can you post pictures of what exactly they fixed?

2014MallCrawler · August 5, 2015

I have vibration but its pretty intense at 70mph.. to the point of where stuff rattles in my cupholders.. i think my driveshaft isnt balanced or something odd... gonna take it to the dealer soon.

Jesse Davidson · August 6, 2015

Well, I had mentioned that I was done dealing with all of GM's BullSh*t, particularly after they told me that it was "normal operation" and they they wouldn't do anything. The lawfirm I had contacted called me back today, and they ARE interested in taking the class action case, they have already gotten some "experts" to look into ALL of the issues, I gave them a little more information, and they said that either one of their "upper level partners" or the "experts" will be contacting me in the next few weeks regarding the overall case.

Here we go, the ball is finally rolling

(if anyone wants to/ is willing to speak to them, please pm me your Name, Email, and Phone)

Jvaughan174 · August 7, 2015

Well just picked the truck up after 2 more weeks in the shop. They replaced the torque converter and said yep it's all fixed got 20mins up the road and the same s*** started again at this point I am done I am taking it back tomm and requesting a buy back I guess we shall see how it goes. Only 1400 miles on it bought it June 6th and has been in the shop since June 26 3 times for a total of over 30 days.

Jesse Davidson · August 7, 2015

Well just picked the truck up after 2 more weeks in the shop. They replaced the torque converter and said yep it's all fixed got 20mins up the road and the same s*** started again at this point I am done I am taking it back tomm and requesting a buy back I guess we shall see how it goes. Only 1400 miles on it bought it June 6th and has been in the shop since June 26 3 times for a total of over 30 days.

ouch man

Conussd · August 12, 2015

I finally found another dealership that is willing to really look at the truck. I have a GMC but taking it to a Chevy dealer that's 50 miles away. The Service Advisor was very quick to acknowledge that there are issues with the 2014s. I think I'm going to use this thread and make a checklist of all the things to look at. LOL. I drop off the truck tomorrow night.

I'm kind of curious to see how many other people following this thread have the 5.3 8cyl and are experiencing the same vibration issue.

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Jesse Davidson · August 12, 2015

I finally found another dealership that is willing to really look at the truck. I have a GMC but taking it to a Chevy dealer that's 50 miles away. The Service Advisor was very quick to acknowledge that there are issues with the 2014s. I think I'm going to use this thread and make a checklist of all the things to look at. LOL. I drop off the truck tomorrow night.

I'm kind of curious to see how many other people following this thread have the 5.3 8cyl and are experiencing the same vibration issue.

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there is another thread for the same topic over 360 pages

Conussd · August 12, 2015

Yeah, I've been reading through that thread as well. I knew I should've gotten the 8cyl. Lol

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Jesse Davidson · August 12, 2015

Yeah, I've been reading through that thread as well. I knew I should've gotten the 8cyl. Lol

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welcome to my world

Jesse Davidson · August 12, 2015

actually i shouldnt say that, the 5.3 has the same issues

tlake84 · August 12, 2015

I have a 5.3, but currently have a v6 for a loaner. The AFM vibe that comes from the v6 is entirely different than the vibe I get on my 5.3. The AFM vibe on the v6 is in the steering wheel and column. The vibe on my 5.3 appears to be coming from the rear of the truck and causing the center console to shake at 40mph and 75-80mph. The steering wheel on the 5.3 is solid in and out of AFM (for me anyway). The only thing I can feel is a slight surge when going into and out of AFM on the 5.3.

abominable z71 · August 12, 2015

I have a 5.3, but currently have a v6 for a loaner. The AFM vibe that comes from the v6 is entirely different than the vibe I get on my 5.3. The AFM vibe on the v6 is in the steering wheel and column. The vibe on my 5.3 appears to be coming from the rear of the truck and causing the center console to shake at 40mph and 75-80mph. The steering wheel on the 5.3 is solid in and out of AFM (for me anyway). The only thing I can feel is a slight surge when going into and out of AFM on the 5.3

I have the same vibe but from 70-80. Have you noticed the vibe to be much worse during colder weather? Where I'm at the temp swings 35 degrees from when I go to work to when I come home, vibration is less severe in the afternoon .