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  1. #1

    Default 2006 Colorado Check Engine

    Any known problems with cylinder 5 misfiring at 70 thousand km or so?What could be problem and any GM recall on it?

  2. #2

    Default

    I have not heard of that issue. But, I did a little research on it and found tons of info. It seems that the heads on those 5 cylinders have valve seats that are not hard enough and wear early. I am not saying that this is your issue. You need to rule out a coil pack , spark plug, and fuel delivery problem. After that I would suggest doing a cylinder leak down test on each cylinder, with the cylinder being tested being at Top Dead Center. From the info I found cylinder 5 and cylinder 2 are the cylinders with the known issues.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

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