2019+ Silverado (GMT-T1) Section for all discussion related to the 2019+ Chevrolet Silverado and GMC Sierra.

2020/2021 8 sped problems

Old Sep 3, 2024 | 10:04 AM
  #21  
MarkBB's Avatar
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Originally Posted by Ccampbell0706
We had to purchase a new transmission.
mine is still under warranty. The dealer said the Valve body is bad and they have anew one on order. I am in a loaner truck until I get mine back.
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Old Nov 17, 2025 | 8:06 AM
  #22  
Krizity40's Avatar
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Default 2019 Silverado 1500 Lt Transmission Gone

Originally Posted by MarkBB
mine is still under warranty. The dealer said the Valve body is bad and they have anew one on order. I am in a loaner truck until I get mine back.
I got a new transmission have under 11g miles on the new transmission i waited 3 months for , as I was driving it out of the dealership aftet getting brandnew transmission it slipped as I drove it off the lot. I took it right back in to them and they told me that it's normal and that it would work it's self out and has not yet. Going back in for work Dec 8th hopefully to get it figured out.
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