Engines & Drivetrain (V8, Duramax, TurboMax)

1,140 topics in this forum

1. Cold start sounding different?

   By Lions3663, January 3, 2022
   • 3 replies
   • 1.1k views
   • 
   • Lions3663
   • January 5, 2022

2. Interesting Info on the new 3.0 Diesel

   By lennstang, January 4, 2022
   • 0 replies
   • 1.5k views
   • 
   • lennstang
   • January 4, 2022

3. smart alternator or traditional one?

   By tha hyun shin, January 3, 2022
   • 5 replies
   • 7.7k views
   • 
   • garagerog
   • January 4, 2022

4. Flowmaster Exhaust, 2019 LT 5.3 8 speed remarks.

   By Pale Rider, December 26, 2021
   • 2 replies
   • 1.5k views
   • 
   • Pale Rider
   • January 3, 2022

5. 2022 Limited AT4 wandering on highway

   By ian cloutier, January 3, 2022
   • 2 replies
   • 2.1k views
   • 
   • Kilgore Trout
   • January 3, 2022

6. Supercharger

   By Crspncr, January 1, 2022
   • 4 replies
   • 1.6k views
   • 
   • lapoolboy
   • January 2, 2022

7. 6.2 Muffler/ Flapper delete- not great 1 2

   By lpg, September 3, 2021
   • 24 replies
   • 31.7k views
   • 
   • GETGONE
   • January 2, 2022

8. 2020 6.2 Magnaflow 12909 Installed flappers deleted

   By HIGH ROLLIN, April 22, 2020
   • 8 replies
   • 8.8k views
   • 
   • Dman10
   • January 1, 2022

9. 3.0L Duramax 3.73 Gears 1 2

   By Eville, June 29, 2020
   • 15 replies
   • 32.9k views
   • 
   • barr8888
   • December 31, 2021

10. 3.0 Duramax DEF consumption 1 2 3 4 8

    By Firetrout, January 27, 2020
    • 108 replies
    • 127.7k views
    • 
    • Trubik
    • December 31, 2021

11. Flapper Question

    By hihosilverado, October 29, 2021
    • 9 replies
    • 3.4k views
    • 
    • TNTSierra
    • December 29, 2021

12. 2019 Silverado 10sp fluid exchange

    By Black02Silverado, November 18, 2021
    • 12 replies
    • 2.5k views
    • 
    • TJay74
    • December 25, 2021

13. Diablo 7222 - R 1 2

    By lpg, September 3, 2021
    • 21 replies
    • 5.8k views
    • 
    • lpg
    • December 23, 2021

14. Exhaust Rattle on 2021 6.2l CC 1 2

    By burgie189, February 18, 2021
    • 17 replies
    • 25.4k views
    • 
    • ChevyJoe85
    • December 22, 2021

15. Lifter/pushrod failure questions? 1 2 3 4 5

    By Adamace1, October 2, 2021
    • 63 replies
    • 15.6k views
    • 
    • YZ-Dave
    • December 20, 2021

16. 6.2/6L80/3.73 vs 6.2/8L90 vs ??? 1 2

    By tdc5152, October 15, 2021
    • 26 replies
    • 10.6k views
    • 
    • Transient
    • December 17, 2021

17. 2020 Chevy 1500 Durmax DEF in fuel

    By Nick Crawley, December 15, 2021
    • 5 replies
    • 2.1k views
    • 
    • Transient
    • December 17, 2021

18. X pipe ain’t it

    By Avery Dameron, December 16, 2021
    • 7 replies
    • 2.2k views
    • 
    • Transient
    • December 17, 2021

19. How do you guys estimate Fuel Mileage? 1 2 3

    By Calboy, December 13, 2021
    • 33 replies
    • 2.9k views
    • 
    • Transient
    • December 17, 2021

20. 2021 5.3 GMC Sierra lifter failure

    By Paul Ternes, December 3, 2021
    • 11 replies
    • 6.8k views
    • 
    • voided3
    • December 14, 2021

21. Erratic def consumption

    By Yxan, September 27, 2020
    • 4 replies
    • 6.4k views
    • 
    • Donald Yoakem
    • December 14, 2021

22. New York’s new exhaust law 1 2

    By Dh669, November 25, 2021
    • 29 replies
    • 5.2k views
    • 
    • Transient
    • December 14, 2021

23. She loud 1 2 3 4 5

    By Avery Dameron, October 24, 2021
    • 63 replies
    • 7.2k views
    • 
    • Grumpy Bear
    • December 12, 2021

24. Stock Wheels for Winter?

    By yzinger, December 10, 2021
    • 7 replies
    • 1.3k views
    • 
    • yzinger
    • December 12, 2021

25. Chirp

    By Jevard Hoskins, November 3, 2021
    • 3 replies
    • 2.6k views
    • 
    • Chris Panke
    • December 8, 2021