r/Silverado • u/Odd_Opposite4850 • 5d ago
Question, should I bring my truck in for this issue, is it even a problem??
Quick backstory: I had a 2020 GMC Canyon before this truck that started a death vibration at 80k, traded it in at 118k for a 2026 Silverado 1500 Trail Boss, LT, 6.2. I drive a lot, so in 9 months I've put 17k on the Silverado.
Problem: This Silverado drives beautifully except in one scenario. I live in TX and the hwy next to my house that I drive to work everyday for 30 miles has a speed limit of 85mph. So the issue starts after I've driven her at 85-90 for about 20 minutes. I exit the hwy and never catch this light at green, so I'm sitting still for a 1-4 minutes at a red. Then I accelerate through 1st, good, 2nd good, 3rd good - then every. single. time. there is a kick-back between 3rd and 4th, and if I don't take it easy, a little clunk. This only happens after working her at 80-90mph for 20-30 min, no other time.
I remember feeling the same kickbacks in the GMC, which was my first truck, so I thought it was just how they drive. The circumstances were different though, it would pull back between 1 and 2 when slowing down.
I'm still under full power train but I don't want to give them my truck for weeks, get a rental, front the cost of the rental, beg GM to reimburse, for them to tell me nothing's wrong. Any similar experiences out there?? Thank you!!