Jump to content

Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.

2,740 topics in this forum

  1. 2019 Chevy 1500 5.3 liter. Weird sound

    By Logan717,
    • 0 replies
    • 525 views

  2. Can’t put gas in my tank

    By Shane Penny,
    • 4 replies
    • 795 views

  3. Ordering new 6L80 transmission.

    By BrizzoDaIzzo,
    • 4 replies
    • 5.4k views

  4. Best tuner for L86 6.2L / 8L90

    By 2018GMC,
    • 4 replies
    • 17.7k views

  5. Trans repair before there's an issue 1 2 3

    By Dieselcamino,
    • 31 replies
    • 6.3k views

  6. 2016 Silverado Chirping Noise

    By Falconsfan1988,
    • 14 replies
    • 21.9k views

  7. 2015 Sierra 5.3 and transmission pull

    By gbayfisher,   
    • 7 replies
    • 866 views

  8. 5.3 vortec to l83 turbo manifold

    By cian,
    • 2 replies
    • 1k views

  9. 5.3 vortec to l83 turbo manifold

    By cian,
    • 0 replies
    • 511 views

  10. Trailer break system/ truck turning off

    By Jhh1210,
    • 4 replies
    • 1.3k views

  11. 8 speed suddenly went out. No forward or reverse gears 1 2 3

    By kgkern01,
    • 44 replies
    • 23.4k views

  12. Need HELP P0203

    By carl mack,
    • 0 replies
    • 1k views

  13. Code for fuel pressure regulator.

    By RyanD77968,
    • 6 replies
    • 16.4k views

  14. 1 to 2 hard shift + grounds

    By CrawlSlow,
    • 7 replies
    • 1.9k views

  15. Bad AC Delco Spark Plugs?

    By ForestryGuy,
    • 3 replies
    • 3.1k views

  16. Unexplained Cylinder 4 Misfire 1 2

    By dtreid,
    • 15 replies
    • 38.1k views

  17. Successful LT5 TB Upgrade Night/Day

    By Noizyboy,
    • 14 replies
    • 11k views

  18. Active Grill Shudders Question/advise

    By Miguel Olea,
    • 13 replies
    • 3k views

  19. 5.3L thermostat and coolcircuit operation

    By Larsson,
    • 0 replies
    • 801 views

  20. Installed ADD W1 Oil Catch Can 1 2 3 4 22

    By EXSlider400,
    • 323 replies
    • 108k views

  21. Transmission/Torque Converter Issues AGAIN

    By InsuredByBeretta,
    • 9 replies
    • 2.4k views

  22. Tuning for 6L80 Transmission and 5.3 Engine maximum longevity 1 2

    By Thomas Hill,
    • 15 replies
    • 18.7k views

  23. 2014 Silverado 5.3 #3 cyl dead miss at idle only. 1 2

    By LeBaron,
    • 25 replies
    • 4.3k views

  24. 2018 Silverado 5.3 to 6.2 LT Swap 1 2

    By 03GMCSS2,
    • 15 replies
    • 16.1k views

  25. Error code P0358: “Ignition Coil H Primary/Secondary Circuit Malfunction"

    By 15BlueSilverado,
    • 0 replies
    • 1.5k views
×
×
  • Create New...