Engine & Drivetrain

Discuss engine and drivetrain items from brakes, transmissions, towing, error codes, anything in the engine bay and so on here.

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  1.    
  2. osidesurfer365

    Broken Motor Mounts

    osidesurfer365, Oct 3, 2013 ... 50 51 52
    Replies:
    516
    Views:
    181,586
    avalonandl
    Aug 14, 2019
  3. 07Burb

    IMPORTANT: The Chronicles of Low Oil Pressure by 07burb

    07Burb, Jun 13, 2014 ... 15 16 17
    Replies:
    162
    Views:
    47,016
    Wolfbraid
    Jan 20, 2019
  4.    
  5. BG1988

    Rough idle part 3 with a Vengeance

    BG1988, Aug 11, 2019 ... 2 3
    Replies:
    23
    Views:
    586
    BG1988
    Aug 25, 2019 at 1:05 AM
  6. kbuskill

    Gruven heater core T-connectors

    kbuskill, Sep 28, 2018 ... 28 29 30
    Replies:
    297
    Views:
    15,893
    Rocket Man
    Aug 25, 2019 at 12:01 AM
  7. Rocket Man

    LY2 4.8 l oil filter issue

    Rocket Man, Aug 24, 2019 at 10:30 PM
    Replies:
    5
    Views:
    72
    Rocket Man
    Aug 24, 2019 at 11:45 PM
  8. BeauDuke45

    6L80E Rough Shift 1-2 and 2-1

    BeauDuke45, Jun 9, 2019 ... 2 3 4
    Replies:
    35
    Views:
    1,397
    swathdiver
    Aug 24, 2019 at 6:56 PM
  9. zell66

    P0171 code and stalles at stop

    zell66, Aug 20, 2019 at 9:28 AM ... 2
    Replies:
    13
    Views:
    264
    gpracer1
    Aug 24, 2019 at 1:41 PM
  10. Heathen0042

    Steering Wheel Position Sensor

    Heathen0042, Aug 23, 2019 at 1:48 PM
    Replies:
    1
    Views:
    69
    wjburken
    Aug 23, 2019 at 3:47 PM
  11. jsoltren

    Power steering upgrade for 2500?

    jsoltren, Aug 23, 2019 at 3:12 PM
    Replies:
    1
    Views:
    65
    swathdiver
    Aug 23, 2019 at 3:45 PM
  12. Idriveaho

    Fuel and oil additives

    Idriveaho, Aug 23, 2019 at 5:00 AM ... 2
    Replies:
    10
    Views:
    279
    SnowDrifter
    Aug 23, 2019 at 2:12 PM
  13. richyr

    Misfire

    richyr, Aug 15, 2019 ... 2 3
    Replies:
    23
    Views:
    797
    wjburken
    Aug 23, 2019 at 12:18 PM
  14. ejschultz

    Towing Capacities and Gear Ratios

    ejschultz, Aug 20, 2019 at 4:21 PM ... 2 3 4
    Replies:
    39
    Views:
    649
    97audia4
    Aug 22, 2019 at 9:25 PM
  15. Heathen0042

    Service Stabilitrak/Service Traction Control & Service Brakes

    Heathen0042, Feb 20, 2019
    Replies:
    6
    Views:
    472
    Doubeleive
    Aug 22, 2019 at 1:12 PM
  16. R3cord303

    Engine replacement with little time. Any input welcome!

    R3cord303, Aug 21, 2019 at 8:21 PM ... 2
    Replies:
    16
    Views:
    307
    08HoeCD
    Aug 22, 2019 at 10:03 AM
  17. Klimber66

    Cannot get fuel lines off of fuel pump

    Klimber66, Aug 21, 2019 at 9:17 PM
    Replies:
    3
    Views:
    107
    Klimber66
    Aug 22, 2019 at 5:42 AM
  18. juan_carlos__007

    Metal Heater Core Quick Connect Replacement?

    juan_carlos__007, Aug 20, 2019 at 5:44 AM
    Replies:
    5
    Views:
    176
    denalianyone
    Aug 22, 2019 at 5:19 AM
  19. YukonCrazy

    Rear End Hopping after Replacing Slip Yoke / U-Joint

    YukonCrazy, Oct 4, 2015 ... 2 3
    Replies:
    20
    Views:
    1,660
    YukonCrazy
    Aug 21, 2019 at 6:17 PM
  20. Dan_G

    Brake Light Switch Broke – Stuck in Park - not cool at all

    Dan_G, Aug 20, 2019 at 9:34 PM ... 2
    Replies:
    10
    Views:
    265
    adventurenali92
    Aug 21, 2019 at 12:19 PM
  21. kevshoe

    Sluggish response in low RPM's

    kevshoe, Aug 17, 2019
    Replies:
    9
    Views:
    272
    swathdiver
    Aug 20, 2019 at 9:25 PM
  22. Jolly Roger

    Question for the exhaust pros out there..

    Jolly Roger, Aug 15, 2019 ... 2 3
    Replies:
    24
    Views:
    1,080
    mountie
    Aug 20, 2019 at 7:53 AM
  23. Greeco

    Transmission Fluid Flush??

    Greeco, Oct 13, 2016 ... 6 7 8
    Replies:
    70
    Views:
    9,236
    Incognito
    Aug 20, 2019 at 1:16 AM
  24. Isaiah13

    Front end Noise Need help!

    Isaiah13, Aug 10, 2019 ... 2
    Replies:
    14
    Views:
    436
    992dr
    Aug 19, 2019 at 8:21 PM
  25. okfoz

    Catalytic Convertor woes

    okfoz, Aug 14, 2019 ... 2
    Replies:
    11
    Views:
    542
    Geotrash
    Aug 19, 2019 at 1:37 PM
  26. George Owens

    Changing sway bar links

    George Owens, Aug 16, 2019
    Replies:
    5
    Views:
    416
    swathdiver
    Aug 18, 2019
  27. 97audia4

    Ac compressor clutch

    97audia4, Aug 17, 2019
    Replies:
    2
    Views:
    163
    drakon543
    Aug 17, 2019
  28. CAPT75

    2007 Denali wont start after cylinder head replacement

    CAPT75, Jun 26, 2019 ... 2
    Replies:
    14
    Views:
    597
    Doubeleive
    Aug 16, 2019
  29. cycho

    2013 new owner towing report

    cycho, Jul 22, 2019 ... 2 3 4
    Replies:
    34
    Views:
    1,960
    jamoody
    Aug 15, 2019
  30. blazzinbird

    Denali feels low on power

    blazzinbird, Aug 9, 2019 ... 2
    Replies:
    14
    Views:
    632
    kbuskill
    Aug 15, 2019
  31. donjetman

    1,200-HP 260 CI Twin Turbo LS Full-Throttle On The Dyno For 5 Mins

    donjetman, Jul 13, 2019 ... 2
    Replies:
    17
    Views:
    919
    Sam Harris
    Aug 14, 2019
  32. whitestingray81

    Steering column boot replacement

    whitestingray81, Jun 19, 2014 ... 2 3
    Replies:
    27
    Views:
    31,357
    KonArtist
    Aug 14, 2019
  33. Mpollard

    2008 Yukon xl Denali p0843

    Mpollard, Aug 1, 2019
    Replies:
    7
    Views:
    274
    Mpollard
    Aug 14, 2019
  34. TooManyGMCs

    Should engine mounts be replaced in pairs? 2010 Yukon Denali

    TooManyGMCs, Aug 7, 2019 ... 2 3
    Replies:
    20
    Views:
    683
    Rocket Man
    Aug 14, 2019
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