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

965 topics in this forum

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

   By oldmann, October 10, 2023
   • 15 replies
   • 9.9k views
   • 
   • 85CJ
   • March 20

3. 2024 Silverado 5.3 misfire

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

4. Dynamic Fuel Management woes.

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

5. Dynamic Fuel Management woes.

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

6. Second NOx sensor failure in 1100 miles

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

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

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

8. 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
   • 551 views
   • 
   • s10dragracer888
   • March 10

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

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

10. 5.3 vs 2.7 1 2 3 4

    By CK, October 29, 2023
    • 46 replies
    • 7.7k views
    • 
    • Texcl2
    • March 9

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

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

12. 23 Trail Boss w/3.0L Duramax Exhaust Brake

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

13. Lifter Failure Question 1 2 3

    By NorthernX31, April 3, 2023
    • 42 replies
    • 11.6k views
    • 
    • Bikerjon
    • March 4

14. Monitor boost on Whipple Supercharger

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

15. Engine Cover Mod

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

16. 23 Trail Boss w/3.0l Duramax - random "burning" smell

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

17. Composite rear springs

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

18. Anyone used AG Diesel Solutions on an LZ0?

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

19. 2020 3.0 Duramax Front Crank Oil Seal Leak

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

20. Gm performance exhaust pn 19419439 Video clip

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

21. 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

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

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

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

    By fondupot, January 11
    • 23 replies
    • 1.9k views
    • 
    • fondupot
    • February 17

24. 2.7 L with 22 k miles and lifter failure

    By hiking_mike, February 8
    • 9 replies
    • 2k views
    • 
    • hiking_mike
    • February 16

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

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

26. Installing my Jet Performance Powr Flo throttle body

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