2019-2025 Silverado & Sierra Engine & Transmission (L3B/L82/L84/L87/LM2/LZ0)

969 topics in this forum

1. How to find which 10-speed transmission on 2023 Sierra 1500 Denali Ultimate 6.2L engine

   By ACinaKC, March 22
   • 9 replies
   • 910 views
   • 
   • newdude
   • March 29

3. 2023 Denali 2500 transmission valve assembly

   By Lars Ohrstrom, March 24
   • 2 replies
   • 268 views
   • 
   • Lars Ohrstrom
   • March 24

4. Exhaust Manifold Back Ordered

   By Mikes chev, February 15
   • 3 replies
   • 5.7k views
   • 
   • Mikes chev
   • March 22

5. 2016 Silverado 6L80e filter seal puller

   By SCR71822, April 24, 2022
   • 5 replies
   • 3.6k views
   • 
   • kickass audio
   • March 22

6. 2024 6.2 with active exhaust is surprising! 1 2

   By oldmann, October 10, 2023
   • 15 replies
   • 10.1k views
   • 
   • 85CJ
   • March 20

7. 2024 Silverado 5.3 misfire

   By ChrisInDallas, March 16
   • 2 replies
   • 500 views
   • 
   • Niklasbraun
   • March 19

8. Dynamic Fuel Management woes.

   By MTY55, March 17
   • 4 replies
   • 706 views
   • 
   • MTY55
   • March 18

9. Dynamic Fuel Management woes.

   By MTY55, March 17
   • 0 replies
   • 284 views
   • 
   • MTY55
   • March 17

10. Second NOx sensor failure in 1100 miles

    By DubVBenz, March 10
    • 2 replies
    • 503 views
    • 
    • redwngr
    • March 13

11. Silverado first oil change parts master oil filter 1 2

    By Mshawn, March 8
    • 21 replies
    • 1.6k views
    • 
    • txab
    • March 10

12. 6L90 TCC failure at 50,000 miles. First one failed at 25,000.

    By s10dragracer888, March 10   

    • torque converter
    • 6l90
    • (and 8 more)

      Tagged with:

      • torque converter
      • 6l90
      • 2019
      • 2020
      • 2021
      • transmission problems
      • transmission problems 6-speed
      • transmission
      • tcc
      • 4.3
    • 0 replies
    • 594 views
    • 
    • s10dragracer888
    • March 10

13. Got my Corsa on a few months ago, I LOVE IT!

    By Naughty Donkey Performance, February 15
    • 2 replies
    • 672 views
    • 
    • Naughty Donkey Performance
    • March 10

14. 5.3 vs 2.7 1 2 3 4

    By CK, October 29, 2023
    • 46 replies
    • 7.8k views
    • 
    • Texcl2
    • March 9

15. Pulsar LT 30k review, is it worth it?

    By Naughty Donkey Performance, February 15
    • 5 replies
    • 925 views
    • 
    • Naughty Donkey Performance
    • March 6

16. 23 Trail Boss w/3.0L Duramax Exhaust Brake

    By Haufski762, March 3
    • 3 replies
    • 633 views
    • 
    • redwngr
    • March 5

17. Lifter Failure Question 1 2 3

    By NorthernX31, April 3, 2023
    • 42 replies
    • 11.8k views
    • 
    • Bikerjon
    • March 4

18. Monitor boost on Whipple Supercharger

    By Mstorm18, January 28
    • 10 replies
    • 660 views
    • 
    • kodiakdenali
    • February 28

19. Engine Cover Mod

    By David Aters, February 24
    • 4 replies
    • 854 views
    • 
    • typhoon186
    • February 27

20. 23 Trail Boss w/3.0l Duramax - random "burning" smell

    By Haufski762, January 31
    • 5 replies
    • 1k views
    • 
    • Niklasbraun
    • February 27

21. Composite rear springs

    By Mshawn, January 16
    • 3 replies
    • 682 views
    • 
    • Bikerjon
    • February 27

22. Anyone used AG Diesel Solutions on an LZ0?

    By DubVBenz, February 25
    • 2 replies
    • 580 views
    • 
    • DubVBenz
    • February 25

23. 2020 3.0 Duramax Front Crank Oil Seal Leak

    By Jaketab, July 1, 2023
    • 6 replies
    • 3.3k views
    • 
    • TonyBoss
    • February 24

24. Gm performance exhaust pn 19419439 Video clip

    By putz173, September 9, 2021
    • 2 replies
    • 1.7k views
    • 
    • Darthmalo
    • February 23

25. GM performance catback vs. Borla Touring catback vs. Corsa sport catback 1 2 3

    By dieselfan1, April 1, 2023
    • 30 replies
    • 8k views
    • 
    • Jac365
    • February 20

26. Curious - 2024 GM 2.7 'Turbomax' country of origin - Mexico?

    By Probity, February 17
    • 0 replies
    • 615 views
    • 
    • Probity
    • February 17