Low RPM shake/ vibration?. stutter?

[Brandoneon01]

On 10/2/2021 at 1:25 PM, Sam Fargo said:

So a further update after a month in the shop they replaced lifter guides and fuel rails and gave me truck back and said it was cylinder 2 lifter bleeding out that was causing the misfire which felt like people a stutter at low rpms. So since this shaking started they replaced camshaft position sensor and that wasn’t it. Now they have replaced lifters cause cylinder 2 had a bleeding lifter and that wasn’t the problem either. Truck still shakes and stutters. Does any one see a problem with this I’ve brought truck in twice with no CEL and they found big problems each time but still haven’t fixed the problem the truck was brought in for. This seems unbelievable. The truck has only 1200 miles now and its two months old and now is going in shop for the third time to fix same issue that hasn’t been addressed but they keep finding bigger problems each time they look into it. I’m at disbelief did they just rebuild the top end for nothing. Furthermore on paperwork they stated they test drove vehicle after repair and it was fine. But I looked at the Chevrolet app and it says no miles were driven on my truck after the date they said they repaired. This thing is becoming highly suspicious I’m not sure the dealer is doing anything but giving back truck after holding it for a month

Did you ever figure out this issue? I’m having the same thing going on with my 2023 GMC Sierra 

[Hadrian]

Hello all 

Mine is a 2020 silverado custom 2.7L  turbo and it does the same but what I've notice watching the rpm it does it as I accelerator a small amount and it shifts back and forth between gears  I think it has something to do with that I checked all my u joints they're all good and all mounts are good only does it at low speeds and a little bit of throttle just when your trying to keep at a speed around 40-60km/h

[GMCustomerService]

On 2/22/2024 at 4:54 PM, Hadrian said:

Hello all 

Mine is a 2020 silverado custom 2.7L  turbo and it does the same but what I've notice watching the rpm it does it as I accelerator a small amount and it shifts back and forth between gears  I think it has something to do with that I checked all my u joints they're all good and all mounts are good only does it at low speeds and a little bit of throttle just when your trying to keep at a speed around 40-60km/h

This is certainly not what we like to hear, Hadrian.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2020 Chevrolet Silverado having a vibration at lower speeds. To do so, please send an email to [email protected] with ATTN: Hadrian/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
 

[Mike duval]

Hello everyone, I have a 2020 Sierra 5.3 Rwd. Experiencing similar issues as described. Has anyone found a fix?

Watched the live data and saw multiple misfires among multiple cylinders, changed the spark plugs and no luck. 

 

[GMCustomerService]

5 hours ago, Mike duval said:

Hello everyone, I have a 2020 Sierra 5.3 Rwd. Experiencing similar issues as described. Has anyone found a fix?

Watched the live data and saw multiple misfires among multiple cylinders, changed the spark plugs and no luck. 

 

We would like to get you into the dealership for assistance, Mike. We can be reached via email at [email protected], and ask that you reach out there with your VIN so we can take a look at your dealership's availability. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.

[Mike duval]

Just wanted to update the forum. After chasing the misfire for so long, I gave up and took it to Chevy and had them run a diag. The tech came back with a bad torque converter. 

Ordered ($621) and had it replaced with fresh trans fluid, its driving good now. Will update after a few thousand miles.

Interesting enough no codes for judder/shudder/slippage. 

 

I'm assuming the ecu pulls fuel when it senses the trans starting to slip? FYI this truck only has 50k miles.

[s10dragracer888]

I have a potential solution to this issue. 2024, work truck, 5.3, crew cab. 10 speed. In the mornings, when I pull off, I can hear what sounds like my rear brake calipers sticking… But the way the noise sounds, it sounds like the rotors are warped. I’m 99% sure that the rear rotors are warped and that’s causing the issues with highway vibration. I’m having it checked this Friday, will keep you guys posted. Someone else posted the same issue in this forum a few months ago. We never heard back from him. I’ve noticed that the vibration will smooth out after a while, long after the brakes are applied… Which is another thing that clues me into the possibility of rotor warpage being the problem. My truck has 10,700 miles on it, and it’s done this since new… Different tires, different wheels, comes from the same place after rotation. It’s definitely coming from the rear. Even though I can feel it in the steering wheel, it feels more so like it’s coming from the back of my seat bottom.

[jwiley2226]

did you happen to figure out what the issue was? i have a 2023 silverado 1500. z71 RST package. 23k miles. when my rpm's hit about 1k especially at low speeds i feel the shake/vibration and it seems to get worse. if you figured it out please let me know. thanks