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    Miles and hours?

    I was just wondering what is the normal ratio between the number of miles on one of our vehicles and the number of hours. 04 140k miles 4900 hours Which comes to about 28 miles per hour. So how many miles/hours do you have on yours?
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    Popping sound when turn off engine

    Recently, everyime I turn off the engine, and get out of my Yukon, I hear a popping sound. It sounds like metal cooling, and from best I can tell it is coming form the muffler. Anyone else ever had this happen? If my muffler is going bad, what would be a good muffler to get that sounds...
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    Yukon XL Denali air ride suspension

    Both of my rear air bags for the suspension are torn, and I have not heard the compressor kick on in a while. How hard are these air bags to change and where is the best place to buy them? Second question, if I have toasted the compressor, how hard is that to change and where exactly is it...
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    Trouble filling up the gas tank

    I am wondering if this is a unique problem to my Yukon XL or if it is wide spread one. When I filling up the tank, the handle clicks off (like it is full) at least five times during a fill up. I know it isn't full because I have only put in about 5 gallons when it happens the first time. I...
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    Had a flat and now in a jam

    So I had my first flat in my 04 Yukon XL Denali. Went to change it and found out one of the previous owners removed the tire iron and all of the attachments that I need to lower the spare tire. Borrowed a friends attachments and got the tire changed. Called the dealership to order the...
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    Spark plug questions: 2004 6.0

    Are NGK and AC Delco the front runners in plugs for the 6.0 in my Denali? Also what mm wires are you guys running? I am new to this engine, so how hard is it to replace the plugs? In my Tahoe it was extremely easy to get to all the plugs, hoping this one is as well.
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    Best bang for the buck with a 6.0

    I have a 2004 Yukon XL Denali, and I am looking to get a few more horses out of it. What is the best bang for the buck perfromance upgrade? I am thinking a PCM tune might be the way to go. What do you guys think? Who would you recommend?
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    New to me Yukon XL Denali

    Howdy everyone. I sold my 99 Tahoe a while ago and picked up a 04 Yukon XL Denali. I have been searching but I can't find some simple information about it. What transmission do I have behind the 6.0? I know it is all wheel drive and is split 40/60 but don't know what the transfer case is...
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    What's up with my horn?

    The horn on my 99 only works when it wants to. It will be fine for a couple weeks, and then it won't work for a couple weeks. The fuse is good, and so is the horn itself, because the horn always chirps when I lock it via the key fob. So what else could be wrong?
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    Radiator flush and t-stat change

    What's up guys? I am a noob to this forum and I have my first question. My 99 is runnign cold... at highway speeds with the a/c blasting, my temp is barely 1/4 of the way b/w 100 and 210; so I am assuming it is my thermostat. Anyone concur? Second, if I have to replace the t-stat, I...

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