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2014-2019 Engine, Driveline, & Exhaust

Technical Discussion surrounding the 5th generation of small block engines, driveline, 6/8/10 speed transmissions, and slew of factory and performance exhausts.
Includes direct injection, active fuel management, and the EcoTec3 4.3L V6 (LV3), 5.3L V8 (L83), 6.2L V8 (L86), and LB8 eAssist gas engines.

2,612 topics in this forum

  1. K2XX 4x4 passenger's side front inner axle seal replacement procedure (better than GM's)

    By SinisterZ71,
    • 1 reply
    • 1.1k views

  3. Engine Harness

    By Willard Burnight,
    • 2 replies
    • 609 views

  4. New Trans,possible upgrade? - 2015 serria 1500 denial

    By Big T8993,
    • 2 replies
    • 1.1k views

  5. 2014 Silverado with 6.2 19,000 miles bottom end of engine exploded in 1 2 3 4 6

    By nomadicdogg,
    • 84 replies
    • 26.3k views

  6. Torque converter

    By Max Raper,
    • 14 replies
    • 5.6k views

  7. Exhaust Adaptive Valve 1 2 3 4 10

    By MotoMedic,
    • 140 replies
    • 218k views

  8. New rear axle due to runout (Vibration issues)

    By movario,
    • 1 reply
    • 741 views

  9. Number of O2 Sensor on 2014-present GMC Sierra Models

    By noobauto,
    • 1 reply
    • 917 views

  10. S&B Cold Air Intake and check engine light

    By SoonerTA,
    • 11 replies
    • 13.1k views

  11. 2018 sierra 1500 denali suspension question

    By hackitz,
    • 3 replies
    • 913 views

  12. Lifter question

    By zac hale,
    • 1 reply
    • 1.2k views

  13. 2017 Chevy 3500 4x4

    By wdlittell,
    • 1 reply
    • 633 views

  14. Please help! 2015 GMC Sierra slt 6.2 misfire

    By Joseph J Pahler,
    • 12 replies
    • 5.6k views

  15. CORSA EXHAUST Problem... Calling all corsa trucks! 1 2

    By Nicholas La Croix,
    • 19 replies
    • 6.5k views

  16. 2018 Silverado 6spd hard downshift

    By Jeremy l Byrd,
    • 13 replies
    • 2.1k views

  17. Not impressed. 1 2

    By SWI712,
    • 26 replies
    • 2.9k views

  18. 2018 L83 Air leak noise...?

    By Jose Soto,
    • 7 replies
    • 882 views

  19. PCV - Catch Can - Vacuum Pump

    By Gandalf,
    • 5 replies
    • 1.9k views

  20. 2016 Silverado 1500 Fluid Capacities

    By 99silveradoz71,
    • 6 replies
    • 2.8k views

  21. Tuning longshot!

    By Bulldog2017,
    • 1 reply
    • 750 views

  22. 3.5 in exhaust 3 in muffler?

    By cbprov,
    • 3 replies
    • 978 views

  23. 2014 Sierra trans thermostat part numbers

    By RobbyDawg,
    • 9 replies
    • 1.9k views

  24. Oil/fuel vapor smell from ac vents

    By Payton34,
    • 2 replies
    • 1k views

  25. Replace my own rear pinion seal?

    By handyman58,
    • 7 replies
    • 3.5k views

  26. GM Performance Exhaust Muffler

    By shakenfake,
    • 13 replies
    • 2.1k views


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