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

963 topics in this forum

1. Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) will not be available on certain 2021 model year Silverado 1500/Sierra 1500 pickups 1 2 3 4 7

   By MS3DALE, March 15, 2021
   • 92 replies
   • 59.7k views
   • 
   • SPASierra
   • May 3, 2023

3. 3.0L Duramax - who owns or has driven one 1 2 3 4 40

   By redwngr, September 2, 2019
   • 596 replies
   • 206.7k views
   • 
   • mark1968
   • August 23, 2021

4. HELP! 2020 Chevy Silverado 5.3 how to remove serpentine belt? 1 2 3

   By Emmanuel Torres, July 14, 2020
   • 34 replies
   • 100.2k views
   • 
   • Cantrell
   • November 17, 2022

5. 3.0 Duramax DEF consumption 1 2 3 4 8

   By Firetrout, January 27, 2020
   • 108 replies
   • 99.4k views
   • 
   • Trubik
   • December 31, 2021

6. $20 Exhaust Fix 2019 5.3 z71 1 2 3 4 14

   By ShamrockShooter, June 17, 2019
   • 199 replies
   • 93.9k views
   • 
   • Seb
   • June 3, 2021

7. 3.0 Duramax Delete 1 2

   By chollister29, January 12, 2022
   • 26 replies
   • 92.7k views
   • 
   • redwngr
   • June 4, 2023

8. 3.23 vs. 3.42 Rear Axle Ratio 1 2

   By RockyTopSilverado, February 18, 2019
   • 16 replies
   • 87.4k views
   • 
   • stilllikechrome
   • March 11, 2020

9. 2019 5.3 Engine Oil capacity

   By sams819, August 26, 2018
   • 8 replies
   • 84.1k views
   • 
   • RICKSR
   • April 29, 2021

10. Performance Upgrade Package 1 2 3 4 9

    By brothernov, March 18, 2019
    • 132 replies
    • 79.7k views
    • 
    • putz173
    • November 17, 2021

11. BORLA Exhaust for the 2019+ Silverado/Sierra 1500 1 2 3 4 16

    By ian@borla, October 24, 2018
    • 230 replies
    • 70.2k views
    • 
    • Klutch
    • August 28, 2021

12. When Will We See Performance Parts for the 3.0 Duramax 1 2 3

    By afterburner82, March 18, 2020   

    • 3.0l duramax
    • exhaust
    • (and 1 more)

      Tagged with:

      • 3.0l duramax
      • exhaust
      • cai cold air intake duramax
    • 32 replies
    • 68.5k views
    • 
    • Lumpy53
    • July 25, 2023

13. New Range Pulsar 1 2 3 4 15

    By Jac365, November 6, 2020
    • 217 replies
    • 63.7k views
    • 
    • Bob Ross
    • July 8, 2021

14. Resonators gone new mesh screens replace them 1 2 3 4 5

    By Black02Silverado, August 27, 2018
    • 67 replies
    • 62.8k views
    • 
    • Ratchetarms
    • August 22, 2020

15. Wheel nut torque setting

    By 2019silverado, November 9, 2019
    • 7 replies
    • 57.5k views
    • 
    • Duelin
    • November 9, 2019

16. 2.7l Engine Mods, Please help. 1 2 3 4

    By teej750, February 20, 2020
    • 46 replies
    • 53.4k views
    • 
    • deheavychevy
    • November 13, 2021

17. First oil change mileage 1 2 3 4 13

    By ish, December 3, 2018
    • 181 replies
    • 50.5k views
    • 
    • relevante
    • April 6, 2019

18. 5.3L Exhaust thread 1 2 3 4 6

    By Jremm15, May 17, 2019   

    • exhaust
    • 87 replies
    • 50.2k views
    • 
    • Dude1317
    • December 15, 2020

19. 2019 5.3L ECM Tuning 1 2 3 4 6

    By yankeedoodle86, March 23, 2019
    • 81 replies
    • 45.5k views
    • 
    • Jchaffin20
    • June 12, 2021

20. 3.0 Duramax exhaust smell in cab 1 2 3 4 5

    By IcemanNY, January 5, 2021
    • 66 replies
    • 44.3k views
    • 
    • 23DmaxYukon
    • December 29, 2023

21. Does anyone regret getting the 5.3L over the 6.2? 1 2 3 4 16

    By BrooklynBravest, October 18, 2019
    • 230 replies
    • 43.5k views
    • 
    • SSsierra
    • November 27, 2020

22. Exhaust flapper vales 1 2

    By asalinasz39, March 29, 2019
    • 19 replies
    • 43.3k views
    • 
    • milkmaster
    • July 23, 2021

23. 2020 Silverado 2500 HD 6.6 gas w/6 speed transmission problems

    By Stoney371, June 3, 2020
    • 13 replies
    • 42.8k views
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    • Lana
    • November 28, 2023

24. Borla Touring Vs. GM Performance 1 2 3 4

    By [email protected], March 21, 2020
    • 56 replies
    • 41.9k views
    • 
    • TXGREEK
    • October 14, 2020

25. Speed limiter delete 1 2 3 4 5

    By Stephen L. Pannell, May 1, 2020
    • 60 replies
    • 40k views
    • 
    • Transient
    • June 18, 2021

26. '19 5.3l exhaust pipe size, muffler suggestions? 1 2

    By Donnyb313, April 10, 2019
    • 19 replies
    • 39.5k views
    • 
    • crazyjoefound
    • May 4, 2020