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  1. 05YukonXL

    Another rough idle and new codes...

    All this leads to P0171, P0174, P0300, P0305... Background: Have had intermittent P0305 (not AFM cylinder) for 18 months on 2014 LT with 115000 miles but there were no clear cause or noticeable symptoms other than minor bad idle at low rpms (while stopped). Coil good, spark plug good, took...
  2. 05YukonXL

    Wheel + Tire combo 17-18" better than 20" for smoother ride?

    Let me explain... I'm looking at a 2014 Suburban LT (w/90k miles - 2WD) that comes equipped with 20"x8.5" LTZ wheels with fairly new 275/55/20 Goodyear LS-2 tires, however the test drive on that combo felt way to 'stiff' - every little bump and imperfection in the road (and there are a lot of...
  3. 05YukonXL

    2nd row seat swap still a thing?

    I've come to the conclusion my 'captains' chairs in the 2nd row of my Yukon XL are less useful as the family grows. Anyone have suggestions on where to pickup a 'bench' for the 2nd row, in reasonably good condition, for an 2005 Yukon XL? (other useful bits: tan interior and I am near...
  4. 05YukonXL

    Ambient Light Sensor wiring help needed 2005 Yukon XL

    [SOLVED SEE BELOW] I am attempting to disable the ambient light sensor in my 2005 Yukon XL SLT to prevent the highlights automatically activating the circuit when dark outside (to protect aftermarket HID ballasts during ignition). You know, using a 1.5k resistor... Can anyone help identify...
  5. 05YukonXL

    LED Puddle light draw

    So I have just recently installed LED puddle lights in the mirrors - festoon type. And I noticed the LEDs - even when not 'on' - emit the slightest amount of light. (They are JDM astar from a mazon.) The photo is pretty much what the naked eye will notice at night. Is this normal? Or...
  6. 05YukonXL

    Yukon SLT to Denali headlight swap / conversion NO HID

    Yukon XL to Denali headlight swap 9006 HB4 to 9005 HB3 conversion For those considering this I thought I would post my experience as I just did Yukon XL to Denali headlight swap (9006 HB4 to 9005 HB3 conversion)… instead of filing out the plastic in the 9005 light to fit in the 9006 sockets...
  7. 05YukonXL

    Greetings all, new member here from South Carolina

    Hello to all, found this forum a few months ago while investigating new lights for my 05 YukonXL, which until this past week, was bone stock. Previously had a 02 suburban as well. I've just done the 4-high mod (a credit to the forum), and updated to OEM denali headlights ... will finish that...

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