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    exhaust leak, again

    Hello from the frozen Midwest! My 2011 Denali with 95,000 miles is really starting to frustrate me. I had a cracked exhaust manifold. I didn’t want to mess with it so I brought it to a shop I trust. He recommended doing both at the same time and gave me a decent price, so I did. Now comes the...
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    2011 Yukon Denali trans rebuild cost?

    It sounds like I need to get it towed out by you. The shop is charging $4,200 for the stock rebuild plus $200 to replace the rear main seal.
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    2011 Yukon Denali trans rebuild cost?

    Hi All! I bought my 2011 Yukon Denali last March with 82k miles, it now has 91k. I have been chasing a low oil pressure demon for a few weeks, which now seems to be OK. However, I felt the tranny slip while driving over the weekend, only once, when I went over a rough train crossing. I drove the...
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    New Member from Illinois 2011 Yukon Denali, love it but where is the power?

    This is my first E85 vehicle. I just assumed E85 would be worse for my engine. Is that not really the case? I am contemplating throwing a couple gallons of racing fuel in with the next fill up, just to peak the octane at around 93.
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    New Member from Illinois 2011 Yukon Denali, love it but where is the power?

    I forgot to add that it is AWD. Is there an automatic ride adjustment on this? I hear something making noises in the back when it is sitting.
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    New Member from Illinois 2011 Yukon Denali, love it but where is the power?

    I was looking at an S&B cai. Will a better muffler help, or do I need to run a true double exhaust? What about a tuner?
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    New Member from Illinois 2011 Yukon Denali, love it but where is the power?

    I am planning on plugs and wires. Thoughts on brand? I usually run NGK in everything.I have cleaned the MAF. I run Seafoam cleaner in the tank every 4 or 5 fill ups. I have removed the air intake and cleaned the throttle body from the outside. I have done the Seafoam through the vacuum booster...
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    New Member from Illinois 2011 Yukon Denali, love it but where is the power?

    Hello All! I bought a 2011 Yukon Denali a few months ago. The vehicle had 81,000 on it at the time and I have already put about 10k on it. I really love the way it drives, but I wish the power was a little more present. For a 6.2l I was hoping for some get up and go. I know it's a big heavy...

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