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

1,040 topics in this forum

1. Transmission cooler options / necessity

   By 23RST, September 5
   • 1 reply
   • 344 views
   • 
   • redwngr
   • September 9

3. Alternator capacity at idle

   By Paul Beaudet, September 9
   • 0 replies
   • 196 views
   • 
   • Paul Beaudet
   • September 9

4. 2021 RST with the Silverado Shudder

   By GarandPappy, August 28   

   • Torque Converter
   • Transmission Fluid Flush
   • (and 3 more)

     Tagged with:

     • Torque Converter
     • Transmission Fluid Flush
     • Transmission Filter Replacement
     • 5.3L Vortec
     • 8 speed transmission
   • 1 reply
   • 616 views
   • 
   • silveradosid
   • August 29

5. Rattling noise sounds like heat shield.

   By KShi, March 25, 2021
   • 9 replies
   • 31.2k views
   • 
   • RDP3271
   • August 28

6. LZO mileage dropped off big time.

   By alliz86, August 19
   • 2 replies
   • 636 views
   • 
   • redwngr
   • August 28

7. Oil dipstick not registering after putting in 8 qts of oil 1 2

   By hogrider815, January 28, 2019   

   • 2019
   • silverado chevrolet
   • 15 replies
   • 42.1k views
   • 
   • sandpaper
   • August 28

8. 2020 lm2 timing chain update

   By dodge charger, August 27
   • 0 replies
   • 428 views
   • 
   • dodge charger
   • August 27

9. Rear lowering shackles 24 Sierra Denali

   By DwDrummer, December 12, 2023
   • 7 replies
   • 3.9k views
   • 
   • newdude
   • August 27

10. 8L90 upgrades?

    By AJMBLAZER, August 25   

    • 8l90
    • shift kit
    • (and 2 more)

      Tagged with:

      • 8l90
      • shift kit
      • deep pan
      • upgrade
    • 3 replies
    • 1k views
    • 
    • AJMBLAZER
    • August 26

11. Oil analysis

    By johnnyquick, August 22
    • 5 replies
    • 545 views
    • 
    • Grumpy Bear
    • August 24

12. Identifying rear diff 2020 6.2 Z71

    By johnnyquick, August 10
    • 8 replies
    • 501 views
    • 
    • Gangly
    • August 20

13. 2024 GMC Elevation 5.3 w/10 speed transmission. Reverse issues

    By Robby B, August 13
    • 2 replies
    • 828 views
    • 
    • RCMH
    • August 16

14. 2024 LZ0 transmission temperature and thermostat question.

    By Green02z71, August 13
    • 5 replies
    • 830 views
    • 
    • newdude
    • August 14

15. A lot of "soot" black buildup in and around the outside edges of my HDMI exhaust pipes

    By johnnyquick, August 8
    • 7 replies
    • 746 views
    • 
    • AJMBLAZER
    • August 12

16. External oil cooler, anyone have suggestions on a kit?

    By johnnyquick, July 30
    • 5 replies
    • 590 views
    • 
    • johnnyquick
    • August 9

17. 2.7 Silverado Injector/valve issues, seafoam solution?

    By Dry, June 15
    • 7 replies
    • 1.5k views
    • 
    • johnnyquick
    • August 8

18. 2021 Silverado has Valve Body Back Order- Anyone else

    By Jeffdew, June 25
    • 3 replies
    • 3.1k views
    • 
    • Bikerjon
    • August 7

19. 23 GMC Sierra 10 speed trans 1 2

    By Sean Rankin, January 25
    • 16 replies
    • 2.1k views
    • 
    • redwngr
    • August 6

20. New 2023 5.3 with DFM. 1 2 3 4

    By Jimbeau, July 31, 2023
    • 45 replies
    • 20.8k views
    • 
    • Jimbeau
    • August 6

21. Lifter replacement longevity review 21at4 1 2 3

    By Bob’s Sierra, April 25
    • 36 replies
    • 3.8k views
    • 
    • Bob’s Sierra
    • August 5

22. 2020 Silverado 1500 custom 4.3 liter thermostat location

    By Jessiehouse, August 4
    • 0 replies
    • 210 views
    • 
    • Jessiehouse
    • August 4

23. Lubegard Platinum trans fluid protectant

    By johnnyquick, August 1
    • 7 replies
    • 916 views
    • 
    • Black02Silverado
    • August 1

24. 2020 Silverado 6.2 4WD 10 spd transmission pan removal

    By johnnyquick, August 1
    • 0 replies
    • 331 views
    • 
    • johnnyquick
    • August 1

25. Driving 2019 6.2 with 10 speed in L9

    By SeeTire, June 19
    • 4 replies
    • 1.4k views
    • 
    • MTY55
    • July 31

26. 2020 Silverado 6.2 a quart of oil every 1000 miles? 1 2

    By johnnyquick, April 21
    • 23 replies
    • 2.4k views
    • 
    • Black02Silverado
    • July 29