Engine l stumble
Pro
Joined: Nov 2021
Posts: 613
Likes: 343
From: Kannapolis, NC
Yep I and many here had shuddering in the 1300 to 1600 range. This certainly sounds like a trans triple flush issue though I thought it was corrected in 2019. Maybe if yours was made early in the model year that could be the problem. I just had mine 2017 flushed and GM paid for it. It fixed the issue immediately. Best of luck and I hope that is the issue since that is a quick and easy fix.
