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

1,040 topics in this forum

1. 2019 1500 Transmission shutter 1 2

   By kenaparker, September 14, 2023
   • 19 replies
   • 3.9k views
   • 
   • acmech87
   • May 1

3. New Oil Filter Design

   By BlancoSilverado, April 30
   • 1 reply
   • 1.5k views
   • 
   • repairman54
   • May 1

4. 6.2 Collapsed Lifter = $9,000 Motor Swap

   By Gocats96, April 27
   • 14 replies
   • 1.9k views
   • 
   • brianf60
   • April 29

5. Transmission cooler for 2020 RST 3.0 duramax

   By Jason Clark, April 26
   • 4 replies
   • 1.1k views
   • 
   • Jason Clark
   • April 28

6. 6.2 Replacement Motor Options

   By Gocats96, April 28
   • 0 replies
   • 640 views
   • 
   • Gocats96
   • April 28

7. Lifters took a dump yesterday morning.

   By lennybg, April 25
   • 0 replies
   • 815 views
   • 
   • lennybg
   • April 25

8. 2024 3.0 duramax with NHT payload

   By Jason Clark, April 19
   • 4 replies
   • 1.9k views
   • 
   • GETGONE
   • April 23

9. Picking up my first Duramax, whats the recommended DEF brands? & Additives?

   By KinkyDuramax, April 1
   • 2 replies
   • 1.2k views
   • 
   • HondaHawkGT
   • April 22

10. P0747 - 2023 Silverado 3500HD

    By KevanG, April 21
    • 1 reply
    • 2k views
    • 
    • 64BAwagon
    • April 21

11. 2021 LM2 3.0 Coolant Control Valve

    By d9gdon, December 18, 2023
    • 9 replies
    • 19.9k views
    • 
    • Jake_downs
    • April 21

12. 10 speed transmission - cover pan bolt and filter bolt

    By Philwalbridge, April 15
    • 3 replies
    • 1.3k views
    • 
    • newdude
    • April 15

13. 2015 GMC Sierra 1500 - Unknown Misfire Issue?

    By mamarinelli, December 19, 2023   

    • gmc
    • sie
    • (and 2 more)

      Tagged with:

      • gmc
      • sie
      • coils
      • ignition
    • 4 replies
    • 2.5k views
    • 
    • Paul secatore
    • April 10

14. Transmission Cooler for 2021 Silverado z71 1 2

    By malibu43, December 19, 2022
    • 25 replies
    • 15.7k views
    • 
    • BigOlly83
    • April 10

15. 5.3 Dynamic fuel management 1 2 3

    By Kdn85, December 16, 2020
    • 32 replies
    • 31.6k views
    • 
    • Z45
    • April 10

16. The truth about oil change intervals

    By Haufski762, April 3
    • 8 replies
    • 2.1k views
    • 
    • Grumpy Bear
    • April 7

17. '21 Silverado 8speed Cold Shift issues

    By rgholmes08, March 29, 2021
    • 11 replies
    • 13.3k views
    • 
    • MPops
    • April 5

18. Exhaust For GMC AT4 With 6.2 Engine - Borla Touring or AWE 0FG

    By SS Crew, September 28, 2022
    • 9 replies
    • 5.5k views
    • 
    • J2Jones
    • April 4

19. GMPE & Borla

    By back_336, April 1
    • 0 replies
    • 480 views
    • 
    • back_336
    • April 1

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

    By ACinaKC, March 22
    • 9 replies
    • 4.5k views
    • 
    • newdude
    • March 29

21. 2023 Denali 2500 transmission valve assembly

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

22. Exhaust Manifold Back Ordered

    By Mikes chev, February 15
    • 3 replies
    • 6k views
    • 
    • Mikes chev
    • March 22

23. 2016 Silverado 6L80e filter seal puller

    By SCR71822, April 24, 2022
    • 5 replies
    • 5.3k views
    • 
    • kickass audio
    • March 22

24. 2024 Silverado 5.3 misfire

    By ChrisInDallas, March 16
    • 2 replies
    • 1.1k views
    • 
    • Niklasbraun
    • March 19

25. Dynamic Fuel Management woes.

    By MTY55, March 17
    • 4 replies
    • 1.1k views
    • 
    • MTY55
    • March 18

26. Dynamic Fuel Management woes.

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