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

963 topics in this forum

1. Second NOx sensor failure in 1100 miles

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

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

   By Mshawn, March 8
   • 21 replies
   • 1.5k views
   • 
   • txab
   • March 10

4. 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
   • 537 views
   • 
   • s10dragracer888
   • March 10

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

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

6. 5.3 vs 2.7 1 2 3 4

   By CK, October 29, 2023
   • 46 replies
   • 7.6k views
   • 
   • Texcl2
   • March 9

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

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

8. 23 Trail Boss w/3.0L Duramax Exhaust Brake

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

9. Lifter Failure Question 1 2 3

   By NorthernX31, April 3, 2023
   • 42 replies
   • 11.4k views
   • 
   • Bikerjon
   • March 4

10. Monitor boost on Whipple Supercharger

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

11. Engine Cover Mod

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

12. 23 Trail Boss w/3.0l Duramax - random "burning" smell

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

13. Composite rear springs

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

14. Anyone used AG Diesel Solutions on an LZ0?

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

15. 2020 3.0 Duramax Front Crank Oil Seal Leak

    By Jaketab, July 1, 2023
    • 6 replies
    • 3.2k views
    • 
    • TonyBoss
    • February 24

16. Gm performance exhaust pn 19419439 Video clip

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

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

    By dieselfan1, April 1, 2023
    • 30 replies
    • 7.9k views
    • 
    • Jac365
    • February 20

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

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

19. Installing a Trailboss 2" rear lift block on a non-trailboss truck 1 2

    By fondupot, January 11
    • 23 replies
    • 1.8k views
    • 
    • fondupot
    • February 17

20. 2.7 L with 22 k miles and lifter failure

    By hiking_mike, February 8
    • 9 replies
    • 1.9k views
    • 
    • hiking_mike
    • February 16

21. Bought a ROTO FAB on here in the Classifieds!

    By Naughty Donkey Performance, February 15
    • 0 replies
    • 447 views
    • 
    • Naughty Donkey Performance
    • February 15

22. Installing my Jet Performance Powr Flo throttle body

    By Naughty Donkey Performance, February 15
    • 0 replies
    • 406 views
    • 
    • Naughty Donkey Performance
    • February 15

23. Anyone tried the Pulsar LT on new TrailBoss? 1 2

    By SquireSCA, March 30, 2021
    • 27 replies
    • 33.3k views
    • 
    • Naughty Donkey Performance
    • February 15

24. Anybody else's front suspension pop and creak?

    By haider320, December 16, 2021
    • 9 replies
    • 1.5k views
    • 
    • HapaTrailBoss
    • February 15

25. 2020 6.2L Lifter Drop

    By HapaTrailBoss, February 15
    • 4 replies
    • 582 views
    • 
    • HapaTrailBoss
    • February 15

26. 2021 5.3L Water pump pulley

    By Shelbybaddog, July 12, 2023
    • 3 replies
    • 1k views
    • 
    • Niklasbraun
    • February 14