Engines & Drivetrain (V8, Duramax, TurboMax)

1,140 topics in this forum

1. Would you guys recommend 19-24 model sierra?

   By Dangelo, December 27, 2024
   • 6 replies
   • 1.9k views
   • 
   • 15 Z71
   • December 29, 2024

2. Potential Over boost with LZO

   By JerryCanada, December 27, 2024
   • 1 reply
   • 695 views
   • 
   • Velocity12
   • December 28, 2024

3. Anyone used AG Diesel Solutions on an LZ0?

   By DubVBenz, February 25, 2024
   • 4 replies
   • 4.5k views
   • 
   • Grover67
   • December 15, 2024

4. Engine Coolant Flow Control Valve

   By Paul Hurtt, December 13, 2024
   • 0 replies
   • 1.1k views
   • 
   • Paul Hurtt
   • December 13, 2024

5. 2023 5.3L sierra 1500 oil pump failure

   By Tykolt, November 4, 2024
   • 3 replies
   • 4.6k views
   • 
   • Bikerjon
   • December 11, 2024

6. 2021 GMC Bad Lifter Problem Blown Engine

   By Mark Frederick, July 30, 2021   

   • What happens after they replace does it happen again
   • 14 replies
   • 17.4k views
   • 
   • Jordan Bolster
   • December 5, 2024

7. DFM delete and emissions inspection.

   By DK91105, December 3, 2024
   • 4 replies
   • 1.6k views
   • 
   • DK91105
   • December 4, 2024

8. NHTSA Recall Notice 24V-797

   By Transient, November 13, 2024
   • 10 replies
   • 8.1k views
   • 
   • Snappy78
   • December 3, 2024

9. For reliability/longevity - is the TurboMax the best engine choice?

   By buzzylite, November 28, 2024
   • 11 replies
   • 26k views
   • 
   • 15 Z71
   • December 2, 2024

10. HELP! 2020 Chevy Silverado 5.3 how to remove serpentine belt? 1 2 3

    By Emmanuel Torres, July 14, 2020
    • 35 replies
    • 189.3k views
    • 
    • Fuck chevy
    • November 29, 2024

11. Cat filters

    By Haufski762, November 20, 2024
    • 5 replies
    • 3k views
    • 
    • newdude
    • November 27, 2024

12. 2024 w/2.7 (L3B) metal oil pan – drain plug & seal

    By Probity, November 24, 2024
    • 0 replies
    • 1k views
    • 
    • Probity
    • November 24, 2024

13. DIY (No Weld) Magnaflow 12909 Kit

    By EricTheRed, August 26, 2020   

    • 6.2L
    • Magnaflow 12909
    • 9 replies
    • 15.6k views
    • 
    • revitout
    • November 22, 2024

14. Catch can confusion...

    By DK91105, November 20, 2024
    • 0 replies
    • 1k views
    • 
    • DK91105
    • November 20, 2024

15. AFM/DFM Class action suit...finally 1 2

    By putz173, January 5, 2022
    • 25 replies
    • 14.3k views
    • 
    • lennybg
    • November 18, 2024

16. HELP! 6.2 engine seized up @ 108,000 miles

    By Pickichvino, November 14, 2024
    • 8 replies
    • 3.6k views
    • 
    • silveradosid
    • November 16, 2024

17. Red fault engine air filter

    By Tmize, November 15, 2024
    • 2 replies
    • 584 views
    • 
    • silveradosid
    • November 16, 2024

18. Who has experience with doing a 2019 5.3 DFM DOD DELETE using DOD delete kit and HP Tuners 1 2

    By RobZ, January 10, 2024
    • 25 replies
    • 35.8k views
    • 
    • DK91105
    • November 14, 2024

19. Valve Spring Woes

    By WanderingSpleen, November 9, 2024
    • 8 replies
    • 3k views
    • 
    • DK91105
    • November 11, 2024

20. 2024 Rev GM Silverado Bed Cover too short

    By 24SilveradoDuramax1500, June 16, 2024
    • 1 reply
    • 995 views
    • 
    • N715DP
    • November 8, 2024

21. Can this be used

    By PunchT37, November 4, 2024
    • 2 replies
    • 3.3k views
    • 
    • PunchT37
    • November 4, 2024

22. 3.0 Duramax timing chain stretch and low end knock

    By Edward1978, May 22, 2024
    • 5 replies
    • 25k views
    • 
    • njodell
    • November 3, 2024

23. 2023 Silverado 5.3

    By Silverado Blues, October 30, 2024
    • 1 reply
    • 1.1k views
    • 
    • Bikerjon
    • October 31, 2024

24. Have we moved on?

    By PunchT37, October 27, 2024
    • 2 replies
    • 1.1k views
    • 
    • PunchT37
    • October 28, 2024

25. Check engine light started flashing then stopped. P0300 1 2

    By Bigfoot98, July 6, 2021
    • 21 replies
    • 71.3k views
    • 
    • Flores2020
    • October 20, 2024