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Engines & Drivetrain (V8, Duramax, TurboMax)

Technical discussion for the 6.2L (L87), 5.3L (L84), 3.0L Duramax (LZ0/LM2), and 2.7L TurboMax. Tuning, maintenance, and 8-speed &10-speed transmission tech.

1,140 topics in this forum

  1. Cam Damage

    By syscomtek,
    • 4 replies
    • 4.5k views

  2. 2022 Sierra 1500 Limited 2.7L Turbo Exhaust Options

    By Roy White,
    • 6 replies
    • 9.9k views

  3. 3.0 LZO Passing Power?

    By tjonesdfw,
    • 3 replies
    • 2.4k views

  4. Oil Consumption 1 2 3

    By Forest City Computers,
    • 40 replies
    • 9.4k views

  5. Oil consumption 2019 Silverado 2.7 1 2 3 4 7

    By Dave-Minnesota,
    • 90 replies
    • 44.9k views

  6. 10-speed 10L80 transmission hard line leaking

    By EXSlider400,
    • 1 reply
    • 1.9k views

  7. Finally Lifter failure at 98k miles

    By 11bravoZ71,
    • 3 replies
    • 1.8k views

  8. Hi Everyone, Brand New 2024. What to expect?

    By JohnQPublic,
    • 10 replies
    • 7k views

  9. Anyone using ACDelco additives to avoid DFM issues?

    By Jimbeau,
    • 6 replies
    • 2.8k views

  10. Brake fluid warning light recall

    By TrueBlue,
    • 2 replies
    • 2.1k views

  11. 2010 to a 2024 model year towing question ?

    By Suregrip391,
    • 7 replies
    • 1.1k views

  12. 2019 Silverado 2500 High Country Tranny Issue

    By 2019 Red,
    • 4 replies
    • 3.7k views

  13. 5.3 squashed y-pipe 1 2

    By code-man26,   
    • 18 replies
    • 48.4k views

  14. DEF Limp Mode Message

    By Jaketab,
    • 7 replies
    • 35.6k views

  15. 1st oil change question.

    By Jimbeau,
    • 11 replies
    • 2.1k views

  16. 2024 6.2 engines 1 2

    By Snowman4,
    • 16 replies
    • 19.7k views

  17. Transmission Oil Cooler Lines - Need Help!

    By s10dragracer888,   
    • 0 replies
    • 1.5k views

  18. 2020 3.0 10 Speed Noise/Issues

    By acmech87,
    • 8 replies
    • 6.4k views

  19. Transmission cooler options / necessity

    By 23RST,
    • 1 reply
    • 636 views

  20. Alternator capacity at idle

    By Paul Beaudet,
    • 0 replies
    • 460 views

  21. 2021 RST with the Silverado Shudder

    By GarandPappy,   
    • 1 reply
    • 6.5k views

  22. LZO mileage dropped off big time.

    By alliz86,
    • 2 replies
    • 1.2k views

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

    By hogrider815,   
    • 15 replies
    • 59.1k views

  24. 2020 lm2 timing chain update

    By dodge charger,
    • 0 replies
    • 1.3k views

  25. Oil analysis

    By johnnyquick,
    • 5 replies
    • 1.4k views

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