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

965 topics in this forum

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

   By SquireSCA, March 30, 2021
   • 27 replies
   • 33.4k views
   • 
   • Naughty Donkey Performance
   • February 15

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

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

4. 2020 6.2L Lifter Drop

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

5. 2021 5.3L Water pump pulley

   By Shelbybaddog, July 12, 2023
   • 3 replies
   • 1.1k views
   • 
   • Niklasbraun
   • February 14

6. Sierra 3.0L Duramax Software Update Problem

   By cwhite158, April 16, 2022
   • 8 replies
   • 5.2k views
   • 
   • BigBadSierra
   • February 13

7. 3.0L Duramax Oil Options 1 2

   By Haufski762, February 10
   • 19 replies
   • 1.4k views
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   • diyer2
   • February 11

8. Oil consumption 2019 Silverado 2.7 1 2 3 4 6

   By Dave-Minnesota, August 8, 2022
   • 88 replies
   • 20.6k views
   • 
   • gemarsh
   • February 7

9. 0w40 oil in 6.2 1 2

   By Big_Kahuna, September 9, 2023
   • 24 replies
   • 3.8k views
   • 
   • diyer2
   • February 3

10. 2021 Silverado 3.0L Diesel having vibrations on the interstate 70-80 mph 1 2

    By Armydave81, July 20, 2021
    • 20 replies
    • 8k views
    • 
    • Kevin0311
    • February 2

11. Who has experience with doing a 2019 5.3 DFM DOD DELETE using DOD delete kit and HP Tuners

    By RobZ, January 10
    • 10 replies
    • 2k views
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    • RobZ
    • February 1

12. 8 speed slipping!

    By DrivinSierra, January 25
    • 2 replies
    • 608 views
    • 
    • DrivinSierra
    • January 31

13. Off-road experiences with single speed transfer case 1 2

    By Camo55, January 9
    • 18 replies
    • 1.7k views
    • 
    • Camo55
    • January 30

14. 23 GMC Sierra 10 speed trans

    By Sean Rankin, January 25
    • 13 replies
    • 988 views
    • 
    • Bikerjon
    • January 28

15. Composite rear springs

    By Mshawn, January 16
    • 2 replies
    • 561 views
    • 
    • ExYukon
    • January 27

16. 2.7 silverado grinding noise

    By 2.7power, January 25
    • 7 replies
    • 573 views
    • 
    • newdude
    • January 26

17. LM2 Duramax tuning is here! (EPA compliant)

    By Ronjon, March 8, 2023   

    • tune
    • hptuners
    • (and 7 more)

      Tagged with:

      • tune
      • hptuners
      • Mvpi3
      • 3.0 duramax
      • hp
      • torque
      • tcm
      • ecm
      • Runvse
    • 4 replies
    • 5.1k views
    • 
    • Ronjon
    • January 26

18. 10 spd trans pan removal

    By kmeleon, December 31, 2023
    • 6 replies
    • 1.1k views
    • 
    • Naughty Donkey Performance
    • January 21

19. Pulling DFM fuses 1 2 3 4 5

    By 03blackz71, December 19, 2021
    • 67 replies
    • 20.7k views
    • 
    • Naughty Donkey Performance
    • January 18

20. 3.0 Liter Duramax oil temps

    By Kkajvr6, April 5, 2020
    • 11 replies
    • 14k views
    • 
    • Ivan17
    • January 16

21. New 2023 5.3 with DFM. 1 2 3

    By Jimbeau, July 31, 2023
    • 43 replies
    • 10k views
    • 
    • Jimbeau
    • January 16

22. Transmission issues 2022 2.7

    By steelerdude1, December 7, 2023
    • 8 replies
    • 1.2k views
    • 
    • fondupot
    • January 9

23. Transmission shudders.

    By W4LWQ, December 14, 2023
    • 11 replies
    • 1.3k views
    • 
    • ArrowsmithPML
    • January 9

24. 2021 Silverado single exhaust to dual exhaust conversion 1 2

    By Steven Vona, April 2, 2022
    • 26 replies
    • 10.3k views
    • 
    • John Planas
    • January 7

25. Crappy "winter" fuel

    By TrueBlue, December 15, 2023
    • 6 replies
    • 1.1k views
    • 
    • J2Jones
    • January 3

26. 3.0 Duramax exhaust smell in cab 1 2 3 4 5

    By IcemanNY, January 5, 2021
    • 66 replies
    • 44.5k views
    • 
    • 23DmaxYukon
    • December 29, 2023