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

1,040 topics in this forum

1. 20 Sierra 6.2L rear main seal leak for the 4th time. 1 2

   By LilBean1982, March 12, 2022
   • 23 replies
   • 13.2k views
   • 
   • pokismoki
   • March 21, 2022

3. *Oil Leak* 1 2

   By NotoriousGT350, January 29, 2021
   • 17 replies
   • 9.7k views
   • 
   • NotoriousGT350
   • March 20, 2022

4. 3.0 oil pressure

   By Jrodpic, March 18, 2022
   • 6 replies
   • 10.3k views
   • 
   • Jrodpic
   • March 19, 2022

5. 2021 Chevy Silverado TrailBoss Exhaust Noise

   By Jarid Ashman, July 23, 2021   

   • Chevrolet
   • Chevy
   • (and 8 more)

     Tagged with:

     • Chevrolet
     • Chevy
     • Silverado
     • trailboss
     • trail boss
     • exhaust leak
     • Exhaust noise
     • noise under truck
     • noise
     • exhaust
   • 9 replies
   • 12.9k views
   • 
   • Deadstockpomp
   • March 17, 2022

6. 6.2 V8

   By A muz, March 7, 2022
   • 8 replies
   • 2k views
   • 
   • redwngr
   • March 14, 2022

7. Yet another DFM thread, disable with GDS2???

   By Blanz, December 30, 2021
   • 1 reply
   • 2.9k views
   • 
   • newdude
   • March 13, 2022

8. Ordering new Truck, 3.23 vs 3.42

   By buddyrda, March 11, 2022
   • 11 replies
   • 9.5k views
   • 
   • TxTruckMan
   • March 12, 2022

9. Trim level differences on updated 2022 GMC Sierra 1500 interiors

   By gone_fishing, March 12, 2022
   • 2 replies
   • 3.1k views
   • 
   • newdude
   • March 12, 2022

10. 2022 Silverado 1500 6.2 Muffler Delete With Bullet Style Mufflers In Tailpipes Replacing The Resonators

    By anthony malet, March 10, 2022
    • 1 reply
    • 2.3k views
    • 
    • CamGTP
    • March 11, 2022

11. Duramax 3.0: oil consumption and oil changes 1 2

    By William Richardson, June 14, 2020   

    • oil changes
    • 21 replies
    • 36.8k views
    • 
    • LR Clontz
    • March 8, 2022

12. Trading in 2019 RST 5.3/8speed for a 2022 RST 3.0/10speed Wise Choice?

    By papasink, March 4, 2022
    • 3 replies
    • 1.4k views
    • 
    • redwngr
    • March 5, 2022

13. 2020 sierra 3.0l emission fault

    By Gwat1988, March 4, 2022
    • 0 replies
    • 714 views
    • 
    • Gwat1988
    • March 4, 2022

14. Any lifter failures in 5.3 without DFM 1 2 3 4

    By Nutmeg, December 31, 2021
    • 48 replies
    • 27.5k views
    • 
    • thekcwolf
    • March 3, 2022

15. Exhaust Pipe

    By Tuktuk, February 21, 2022
    • 6 replies
    • 1.2k views
    • 
    • KARNUT
    • February 28, 2022

16. 2021 3.0 regeneration exhaust

    By rbdjr, February 18, 2022
    • 3 replies
    • 3.2k views
    • 
    • Zeeeya
    • February 27, 2022

17. Replacing Rear Differential Oil/Gasket on '20 Silverado RWD

    By HistoryTeacher2020, February 20, 2022
    • 3 replies
    • 1.1k views
    • 
    • redwngr
    • February 20, 2022

18. VIDEO- Engine/ tranny? Whine and knock ?‍♂️

    By Dersch, November 8, 2020
    • 9 replies
    • 2.1k views
    • 
    • Moconnor
    • February 14, 2022

19. PPE thermal bypass for 10 speed anyone install??

    By Grover67, February 11, 2022
    • 7 replies
    • 7.9k views
    • 
    • Dirk13
    • February 13, 2022

20. Chevy 2019 2500 oem wheels

    By Mrdoc, February 11, 2022
    • 0 replies
    • 412 views
    • 
    • Mrdoc
    • February 11, 2022

21. Back at it again with tip questions… 1 2 3

    By Avery Dameron, January 22, 2022
    • 36 replies
    • 3.4k views
    • 
    • shakenfake
    • February 10, 2022

22. GM doing away with auto stop on 6.2 trucks? Why 1 2

    By Tanker 73, December 5, 2021
    • 18 replies
    • 7.9k views
    • 
    • Gangly
    • February 7, 2022

23. 2022 Sierra Elevation Rear Axle Type

    By poppy510, February 7, 2022
    • 1 reply
    • 739 views
    • 
    • AJMBLAZER
    • February 7, 2022

24. 2021 Silverado 3.0 L - Diesel Fuel Additive Facts or Fiction? 1 2

    By rbdjr, February 5, 2022
    • 18 replies
    • 16.3k views
    • 
    • rbdjr
    • February 7, 2022

25. 2019 Duramax No crank No Start

    By Troy Walter, February 6, 2022
    • 1 reply
    • 751 views
    • 
    • Dirk13
    • February 7, 2022

26. Bolt pattern and torque specs for valve cover

    By Cg86, February 2, 2022
    • 5 replies
    • 37.3k views
    • 
    • Cg86
    • February 5, 2022