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  1. M

    P0420 Code, has anybody found it to NOT be a bad cat?

    Pretty much like the title says, it's the one code I was hoping would clear when I got rid of the rich fuel condition. After resetting the fuel composition (previously had P0172/P0175) this was the only code that came back, anybody found a solution other then cats? I'm still pretending there is...
  2. M

    Tech 2 arrived today, hopefully resolved my high alcohol %

    Finally decided to pull the trigger on a Tech 2 and hopefully resolved my codes from an abnormally high alcohol percentage in fuel with a composition reset. It seems to run better! For some reason I had gotten it in my head I could turn off the TPMS light with a Tech 2 on a 2009 but does not...
  3. M

    Annoying constant dash/cd/stereo noise

    As always, I tried searching first but everything about random noises was slightly different, or temporary like just for awhile after shutting down or opening the door. This noise is 24/7, doesn't matter if an audio cd is in or out, doesn't matter if the navigation cd is in or not, I've had the...
  4. M

    Rear suspension "done", on to the front...

    I finally got all my parts and finished getting the rear end much closer to stock. I replaced rear springs with the Moogs that cross reference with OEM spring, the Dorman compressor and (Im ashamed to admit) off brand air shocks. But so far so good, I know some people have negative things to...
  5. M

    Front Autoride Strut Pigtail

    Hey everybody, I want to reinstall the autoride suspension and finally located my passenger side front plug for the strut, but it had been sitting on the exhaust manifold and was melted all to hell. Does anybody have a part number or know what plug would work for the vehicle side of that plug...
  6. M

    Oil Leak Question

    Hello! I've really tried to utilize the search function but haven't found anything yet specific to the plug on the oil cooler line block thing. I have an oil leak right above the oil filter and I know the gasket on the block for the oil cooler lines is a common culprit but it really seems like...
  7. M

    Aloha from Oahu

    Hello, just picked up a 2009 Yukon Denali 2WD. Its in pretty "OK" condition, needs a handful of what I think are minor issues and I want to try and put the autoride suspension back to its original glory. Im happy to be back in the LS game, been a few years since my last one in a 2011 Caprice...

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