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    6.0 idle?

    Mine idles down to 500 and even 300 at a stop sign. 500 or less is where it likes to idle. 300 causes it to stumble when I get on the gas. I seafoamed it and it generally fixed the 300 rpm issue, but it still runs at 500.
  2. C

    does anyone have OBX shorty heathers?

    Here is what I had to modify. Had to cut the flange in one spot on each header.
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    does anyone have OBX shorty heathers?

    I just bought the OBX shorty headers off ebay and I am extremely pleased with the quality of them. The reasons I bought them were not for performance, but I needed something to replace my leaking cracked exhaust manifolds and didn't want to put out any extra money to modify the Y pipe. There...
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    speedometer fluctuating, transmission shifting into neutral

    Hi All My 2001 yukon XL Denali had this issue where while accelerating the transmission would shift into neutral and the engine would rev up. Every time this happened the speedometer would fluctuate, bouncing between 20 and 50. It would only happen every week or so. More recently, the...
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    New to me 2001 denali xl

    I googled #2 and it might be the viscous coupler in the transfer case. I will have to see if that is the case. Sucks that it was gone before I bought it, but them the breaks. My map lights work with the buttons, but not with the interior lights. Its damn dark in the front when you open the...
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    New to me 2001 denali xl

    Sorry for the newb questions, but I can't seem to find the answers to them. 1. Do the daytime running lights only work when the car is not in park? 2. turning on pavement while going forward or reverse almost seems to bind the vehicle up. I know it is AWD, but it doesn't seem to be normal...

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