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  1. dustyb

    AFM/DFM and Lifter Question - Moving from 07 Denali to Newer

    Heya folks, Our 2007 Yukon XL Denali is getting tired (and rusted out) at nearly 350k miles and we're looking to update. We're looking to go somewhere between a 2014-2020 Denali or Escalade (love the 6.2), but we're leery about the AFM, lifter, and push rod problems. We usually buy our vehicles...
  2. dustyb

    '07 Yukon XL Denali rear door unlock

    I've kinda of speculated that it was the instrument block with the built-in relays. It's $80 from gmpartsdirect. I've also speculated that one door actuator is bad, so it's drawing too much current causing both to fail. I believe unlocking takes a little more effort from the actuator, so...
  3. dustyb

    '07 Yukon XL Denali rear door unlock

    I've had the same issue for quite a few years as well. Both rear doors would lock, but only unlock intermittently (usually after pressing unlock multiple times). It seemed to be worse in the winter. They've finally completely stopped unlocking, even with excessive unlock button pressing. You can...
  4. dustyb

    Testing Rear Air Compressor - Replacing Shocks

    I'm going to be replacing the shocks on my 2007 Denali because the bags are shot on these (132,000 miles), so I found some decent Arnott OE remaned shocks that I'm going to throw on. But, I don't know if my compressor is shot or not and I want to test it to make sure it's still working. Is...
  5. dustyb

    P0446 Can't Fill Up Tank

    Still no check engine light, but I still can't fill up at any station without it clicking off every few seconds. I'm thinking canister, but anyone have any thoughts?
  6. dustyb

    P0446 Can't Fill Up Tank

    Thanks for the fast reply! I did route the vent up right near the filler neck and zip tied it up there. I realized I didn't say what brand I got. I got an AC Delco brand and had to buy the bridge connector as well since they changed the plug in. It was very to install and I don't think there...
  7. dustyb

    P0446 Can't Fill Up Tank

    Hello all, I have an issue here that I'm having troubles solving. I just bought my 2007 Yukon Xl Denali with 133,000 miles on it. I haven't been able to run the gas pump for longer than 5 seconds at a time to put gas on and just the other day I got the P0446 code. I knew the previous owner...

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