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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. Some 2023 GMC Sierra And Yukon Units Will Need A 6.2L V8 Engine Replacement

    By SierraStorm21,
    • 1 reply
    • 2.4k views

  2. 24' Silverado RST Z71 6.2 v8 Lifter failure!!!

    By Cojam1,
    • 3 replies
    • 4.9k views

  3. New Motor Verification

    By Gocats96,
    • 2 replies
    • 1.3k views

  4. LZ0 P2463 - "Service Regeneration required" - I drove it for 30 miles and restarted 5 times and it stopped going into limp mode

    By DubVBenz,
    • 7 replies
    • 7.7k views

  5. While towing / transmission bearing hum

    By steve grausgruber,
    • 0 replies
    • 570 views

  6. Sudden Noise development

    By Ron Gering,
    • 3 replies
    • 921 views

  7. 5.3L Gas vs 3.0L Diesel Towing Capacity

    By wxman13,
    • 2 replies
    • 3.2k views

  8. 2021 GMC Sierra lifter failure 1 2

    By patstick,
    • 16 replies
    • 10.4k views

  9. Pulsar LT 30k review, is it worth it?

    By Naughty Donkey Performance,
    • 10 replies
    • 10.1k views

  10. Unbelievably bad service and run around on shudder problem

    By wacnstac,
    • 7 replies
    • 1.8k views

  11. 2019 1500 Transmission shutter 1 2

    By kenaparker,
    • 19 replies
    • 5k views

  12. New Oil Filter Design

    By BlancoSilverado,
    • 1 reply
    • 2.4k views

  13. 6.2 Collapsed Lifter = $9,000 Motor Swap

    By Gocats96,
    • 14 replies
    • 13k views

  14. Transmission cooler for 2020 RST 3.0 duramax

    By Jason Clark,
    • 4 replies
    • 2.9k views

  15. 6.2 Replacement Motor Options

    By Gocats96,
    • 0 replies
    • 875 views

  16. Lifters took a dump yesterday morning.

    By lennybg,
    • 0 replies
    • 1.2k views

  17. 2024 3.0 duramax with NHT payload

    By Jason Clark,
    • 4 replies
    • 3.6k views

  18. Picking up my first Duramax, whats the recommended DEF brands? & Additives?

    By KinkyDuramax,
    • 2 replies
    • 2.9k views

  19. P0747 - 2023 Silverado 3500HD

    By KevanG,
    • 1 reply
    • 3.4k views

  20. 10 speed transmission - cover pan bolt and filter bolt

    By Philwalbridge,
    • 3 replies
    • 5k views

  21. 2015 GMC Sierra 1500 - Unknown Misfire Issue?

    By mamarinelli,   
    • 4 replies
    • 5.1k views

  22. Transmission Cooler for 2021 Silverado z71 1 2

    By malibu43,
    • 25 replies
    • 26.8k views

  23. The truth about oil change intervals

    By Haufski762,
    • 8 replies
    • 4.4k views

  24. Exhaust For GMC AT4 With 6.2 Engine - Borla Touring or AWE 0FG

    By SS Crew,
    • 9 replies
    • 8.8k views

  25. GMPE & Borla

    By back_336,
    • 0 replies
    • 700 views

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