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  1. Tim907356

    Transmission Stumble

    My vehicle is a 2010 Yukon XL Denali with 129k miles. I think I'm the first one to tow with it, but we bought it used from a street lot, so don't know anything about its history. The hitch looked new when we first hooked up our 5000 lb. travel trailer. It's only been towed 3 times. I'm on a...
  2. Tim907356

    Heatin/overheating??!

    So, were taking our first weekend getaway to the nc mountains, near Cherokee. We’re pulling our, let’s say, 4500# travel trailer. Going up hills, even modest ones, I see the temp gauge rise to as much as ~240deg. or so. I’ve never seen it move from 210 before,but haven’t loaded it this much...
  3. Tim907356

    2010 Denali-Intermittent voltage drop

    When we bought the 2010 Yukon Denali, I noticed that occasionally, the voltage gauge would drop to below 13v. It quit doing that over the first month or so, and for the last several months, its always read above 14v. I had to jump my mothers car this weekend, and since then, the voltmeter reads...
  4. Tim907356

    Front end clunk

    My 2010 Yukon Denali just started this the other day. I’m used to hearing ball link or strut clunking on old vehicles, but this was really loud! Any uneven surface seems to make a loud cracking sound under the front; curbs, gravel, rough dirt...it’s been fine since we bought it 3mo. Ago, then...
  5. Tim907356

    High Oil Pressure, 2010 Yukon Denali

    I've seen a few threads on this topic, but just want to justify my conclusions. I bought this Yuk a couple of weeks ago, and it threw a P0521 code on a 100mi. trip today. I had it read (left my OBD2 at home!), at an Autozone, and then noticed that the gauge was indeed reading a good bit higher...

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