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

1,039 topics in this forum

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

   By oldmann, October 10, 2023
   • 16 replies
   • 23.2k views
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   • turborenegade
   • July 11

3. What is normal oil pressure on a 2024

   By rrmccabe, July 11
   • 0 replies
   • 456 views
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   • rrmccabe
   • July 11

4. 2019 Silverado Trail Boss Fuel Distribution Issues

   By BAD_TrailBoss3, June 30
   • 1 reply
   • 301 views
   • 
   • newdude
   • June 30

5. 2020 3.0 Duramax Front Crank Oil Seal Leak

   By Jaketab, July 1, 2023
   • 7 replies
   • 6.2k views
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   • AZRyan
   • June 27

6. Blue DEF vs Platinum DEF?

   By rbdjr, March 8, 2022
   • 6 replies
   • 10.6k views
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   • Colossus
   • June 27

7. L87 6.2L Block failures up to 2/week at my dealer, model years 2021+. Listen for Ticks!

   By joshhibschman, June 13
   • 2 replies
   • 2.1k views
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   • mds47588
   • June 26

8. Question about DFM programming in regards to the ECM?

   By Cojam1, June 13
   • 3 replies
   • 1.1k views
   • 
   • Cojam1
   • June 24

9. Transmission Fluid Change

   By Orlando_Castaway, June 22
   • 3 replies
   • 954 views
   • 
   • Black02Silverado
   • June 23

10. transfer case question

    By typhoon186, June 11
    • 4 replies
    • 680 views
    • 
    • typhoon186
    • June 13

11. DMAX 3.0 Code P26C0

    By Phatty, August 14, 2020
    • 9 replies
    • 7.4k views
    • 
    • mjm-1957
    • June 5

12. 2019 L84/5.3 AFM/DOD?

    By Ed Baudoux, April 4
    • 4 replies
    • 1.7k views
    • 
    • Gangly
    • June 3

13. 2021 5.3 8 speed whining and sluggish under power

    By turnertr, May 28
    • 2 replies
    • 521 views
    • 
    • turnertr
    • June 1

14. Some 2023 GMC Sierra And Yukon Units Will Need A 6.2L V8 Engine Replacement

    By SierraStorm21, May 21
    • 1 reply
    • 1k views
    • 
    • Warehouser
    • May 31

15. 24' Silverado RST Z71 6.2 v8 Lifter failure!!!

    By Cojam1, May 25
    • 3 replies
    • 2k views
    • 
    • 64BAwagon
    • May 25

16. New Motor Verification

    By Gocats96, May 23
    • 2 replies
    • 658 views
    • 
    • Gocats96
    • May 25

17. LZ0 P2463 - "Service Regeneration required" - I drove it for 30 miles and restarted 5 times and it stopped going into limp mode

    By DubVBenz, May 16
    • 7 replies
    • 2.5k views
    • 
    • DubVBenz
    • May 20

18. While towing / transmission bearing hum

    By steve grausgruber, May 18
    • 0 replies
    • 377 views
    • 
    • steve grausgruber
    • May 18

19. Sudden Noise development

    By Ron Gering, May 16
    • 3 replies
    • 587 views
    • 
    • Ron Gering
    • May 16

20. Best engine for mountain/hill climbing

    By Z71RAD88, May 12
    • 10 replies
    • 1.2k views
    • 
    • Z71RAD88
    • May 14

21. 5.3L Gas vs 3.0L Diesel Towing Capacity

    By wxman13, May 12
    • 2 replies
    • 1.2k views
    • 
    • wxman13
    • May 12

22. 2021 GMC Sierra lifter failure 1 2

    By patstick, July 19, 2022
    • 16 replies
    • 7k views
    • 
    • Cristina
    • May 10

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

    By Naughty Donkey Performance, February 15
    • 10 replies
    • 3.4k views
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    • johnnyquick
    • May 7

24. Unbelievably bad service and run around on shudder problem

    By wacnstac, May 3
    • 7 replies
    • 1.1k views
    • 
    • wacnstac
    • May 6

25. 2019 1500 Transmission shutter 1 2

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

26. New Oil Filter Design

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