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

965 topics in this forum

1. Need help. 3.0L diesel multiple (and major) warranty issues - engine and turbo(s) 1 2

   By James Eberhart, June 3, 2022
   • 19 replies
   • 5.3k views
   • 
   • James Eberhart
   • October 30, 2022

3. Speed limiter 98mph?? 1 2

   By dan61psu, September 23, 2019
   • 23 replies
   • 32k views
   • 
   • swathdiver
   • October 18, 2022

4. Ride quality Denali vs. SLT

   By Eric1, September 26, 2022
   • 6 replies
   • 5.7k views
   • 
   • RedLT
   • October 17, 2022

5. XForce Varex Electronically Adjustable Baffle Muffler?

   By matt99199, October 11, 2022
   • 3 replies
   • 982 views
   • 
   • KARNUT
   • October 11, 2022

6. 2022 MQE 8 speed GM trans service at dealer

   By customboss, May 21, 2022   

   • 8 speed trans
   • 8 speed
   • (and 4 more)

     Tagged with:

     • 8 speed trans
     • 8 speed
     • automatic transmission
     • transmission service
     • transmission fluid exchange with pump
     • dealer transmission service
   • 6 replies
   • 5.6k views
   • 
   • 2018GMC
   • October 10, 2022

7. Does my truck have DFM?

   By Nestor Romero, March 9, 2022
   • 10 replies
   • 32.2k views
   • 
   • Amcguy1970
   • October 6, 2022

8. Valvomax oil drain void warranty 1 2

   By IH784, October 2, 2022
   • 17 replies
   • 2.3k views
   • 
   • J2Jones
   • October 5, 2022

9. Borla cat-back exhaust 1 2

   By BamX31, July 30, 2022
   • 23 replies
   • 3.7k views
   • 
   • BamX31
   • October 3, 2022

10. 2019 Silverado LD showing P06DD

    By Dagwood Designs, September 25, 2022
    • 2 replies
    • 635 views
    • 
    • Dagwood Designs
    • September 29, 2022

11. RPO Code Z85, What does it get you?

    By SteveDillon, January 1, 2021
    • 9 replies
    • 19.7k views
    • 
    • swathdiver
    • September 25, 2022

12. Can anyone help me identify what this may be.

    By ChaseCales, September 18, 2022
    • 3 replies
    • 1.2k views
    • 
    • GMCustomerService
    • September 23, 2022

13. 2022 Suburban 3.0 duramax oil consumption

    By EngineNoO9, September 11, 2022
    • 8 replies
    • 5.7k views
    • 
    • newdude
    • September 16, 2022

14. Oil Change on 2022 refresh Silverado.

    By RedLT, September 1, 2022   

    • Oil filter
    • Oil Change
    • 8 replies
    • 3.6k views
    • 
    • RedLT
    • September 12, 2022

15. 2019-2022 exhaust sounds/DFM

    By HuskeyBoy, September 5, 2022
    • 5 replies
    • 3k views
    • 
    • jaxcam02
    • September 6, 2022

16. Diesel acceleration at higher speeds

    By Mikedfw, September 4, 2022
    • 3 replies
    • 1.4k views
    • 
    • Firehawk99
    • September 6, 2022

17. transmission fluid in coolant system

    By bill van nes, July 28, 2022
    • 12 replies
    • 2.2k views
    • 
    • Texcl2
    • September 1, 2022

18. 2021 GMC Sierra lifter failure

    By patstick, July 19, 2022
    • 14 replies
    • 4.5k views
    • 
    • Byrds8
    • August 25, 2022

19. 2020 Silverado 3500 with water in the transmission

    By Evan Shearer, August 24, 2022
    • 3 replies
    • 456 views
    • 
    • silveradosid
    • August 25, 2022

20. LZ0 Duramax predictions

    By 6sigma, July 31, 2022
    • 7 replies
    • 2.3k views
    • 
    • 6sigma
    • August 19, 2022

21. Dual vs single exhaust

    By Megalomegalodon, August 2, 2022
    • 10 replies
    • 5.5k views
    • 
    • Megalomegalodon
    • August 12, 2022

22. L87 fuel economy, what are you getting? 1 2

    By ThePearl, June 8, 2022
    • 21 replies
    • 4.6k views
    • 
    • rbau
    • August 6, 2022

23. DEF Limp Mode Message

    By Jaketab, August 4, 2022
    • 6 replies
    • 9.8k views
    • 
    • Jaketab
    • August 5, 2022

24. Anyone done custom exhaust on a 2.7 yet? 1 2

    By Jricharc, July 29, 2019
    • 17 replies
    • 17.1k views
    • 
    • Silverado4x4
    • August 2, 2022

25. 2019+ Silverado/Sierra 1500 Air or Electronic Locker Options

    By AWS92, July 23, 2022
    • 2 replies
    • 2.5k views
    • 
    • AWS92
    • July 26, 2022

26. Top Tier Gas 1 2 3 4

    By LAAC, March 29, 2022
    • 48 replies
    • 6.5k views
    • 
    • customboss
    • July 21, 2022