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    Possible starter problem on 2007 Tahoe?

    I am pretty sure my problem is the starter but I want some other opinions before replacing it. Yesterday I tried starting my 2007 Tahoe and there were no clicks or anything. battery was not completely dead because the lights and nav system worked fine. I hooked it up to jumpers and it started...
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    2007 Tahoe octane?

    So I realize running higher octane doesn't make sense unless compression is higher and you are experiencing preignition, but I was e-mailing Justin from Blackbear and he told me that the lowest octane he tunes for the 2007+ 5.3 is 89 and that I should be running 89 even while it is stock. The...
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    Just bought a 2007 Tahoe LTZ, have a few ?'s

    I look forward to contributing to this forum once I get to know the Tahoe a bit better. Feel free to answer any of my questions below. Thanks! 1. Tahoe has 120k on it and never ran E85. I hear you can run a tank through to clean out the fuel system? Is that going to clog stuff up like the...

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