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black00ta

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Everything posted by black00ta

  1. black00ta
    Ill be going with the 305/45R22 on my '21 Denali when the time comes, mainly for the slight size increase and the ability to keep a 4ply tire. Personally I would not run the previous generation trucks 285/45R22. Don't get sucked into the whole I want a lot of options thing if it really only comes down to you wanting an AT and not making sacrifice's.
  2. black00ta
    Did you do a battery disconnect when you installed the new air intake? If you install the factory intake and the condition continues then you know it is not the intake itself. At this point cleaning the maf sensor on a whim is not suggested as you'll likely introduce another variable into this equation. Just my .02
  3. black00ta
    vehicles have failures, if it's covered under warranty while you own it then who cares. You gotta live your life my friend.
  4. black00ta
    My dealer said they are working on another update, but last I heard it still wasn't available. If they can make it start as fast as it used to that would be nice. But it hasn't failed me since first software update 10-18-2022.
  5. black00ta
    On Nitrogen I'd see about 2psi swing cold to hot. Regular air will be slightly higher fluctuation like 4ish psi, but that is normal operation.
  6. black00ta
    Not to overcomplicate this, But as long as you do not run below 41ish PSI you will not drop below factory weight carrying ability at any point. if you decide to go up, then that is your choice. I found my sweet spot at about 45psi.
  7. black00ta
    I experienced the crank no start 2 weeks ago, took to dealer and dropped off same day. Got a call the next day for ECM update. Have not experienced it since. Crank time is definitely longer than before, but I thought these things always started up super quick anyway. If this is the resolution then I am happy. I cannot stand the idea of a cab-off surgery for the crank wheel issue on such a new truck.
  8. black00ta
    I experienced the dreaded crank no start. Truck timed out, but then started right up on second try. Drove straight over to GMC dealer, found ECM update regarding crank no start. Have no experienced it again, but it does crank longer by default now. Just thought I would share for others that have read about the bent crank wheel issue some are experiencing. If this resolves it and no other symptoms come from it, I'm happy with this resolution. I just could NOT get on board with a cab-off surgery on such a new truck.
  9. black00ta
    2wd models will likely get the G80 locker in higher trim models only. The truck you're describing seems like a rare combo, but a cool one. Welcome!
  10. black00ta
    I did the first one myself at 5,500 miles a couple weeks ago. I did pickup 1mpg it seems using DexosD 0w20 and a upf66r filter
  11. black00ta
    uggggh that interior tho
  12. black00ta
    My local ACDelco / Motocraft suppliers have DexosD in stock. I have not seen the Mobil1 ESP X2 in stock anywhere. PF66 is getting low inventory right now but UPF66R still good availability.
  13. black00ta
    There is a TSB for internal a/c condenser blockage with these, take to dealer.
  14. black00ta
    my 21' works well in certain scenarios. If it's long straight highway it does very well. If it's winding 2 lane roads with the sun on the horizon, it will disable itself frequently. I figure at least it is smart enough to know it can't work correctly. I also like that you can adjust the distance for spacing between the car in front. I'm sure they are still working out some calibration settings, but overall I like it's features. But I do not consider this autopilot like others may.
  15. black00ta
    Those tires need to be rotated twice as often as you all take them in for oil changes. 3-4k increments will be the only thing that makes them wear remotely even. They are great MUD tires. If I had a dollar for every time I saw someone complain about this and take one look at their tires and it tells this story.
  16. black00ta
    These engines for several generations have had hit and miss lifter failures. This is nothing new. I wouldn't worry too much about it. Every make/model has a pattern failure of some type. TSBs can make people paranoid, they are tools for technicians to be more efficient.
  17. black00ta
    I have a 2021 Denali Duramax with the 22" Bridgestone's, I was able to cure my vibration pretty easily with some match forcing. I own a shop and the Bridgestone's are great tires which we have very few problems with, compared to other brands.
  18. black00ta
    I am a Verizon user but this really just sounds like AT&T has better coverage in your neck of the woods. I would just switch cell phone providers and use your own data, hotspots as needed. and never look back to the trucks overpriced wifi
  19. black00ta
    I also have a 2021 Denali 1500 3.0 with the Alenza 275/50R22 - I find them to be very smooth tires, but just like all things - there can be calibration errors that lead to minor irregularities in manufacturing, i.e vibrations. There needs to be some verifiable results here, otherwise this is all speculation. If you are not taking the wheel and tire assemblies off of the vehicle, swapping to a known-good set. Then having the person who is not satisfied with the vibration level drive the car and say "ok it is fixed" Then this scenario will never end.
  20. black00ta
    What are the details on your truck? 6speed? 8speed? 10speed? 2 speed transfer case?
  21. black00ta
    There is a TSB for twisted up rubber transmission cooler line from the factory. You'll have to get under the truck and remove the plastic to see. if you find that the line is twisted, replace it.
  22. black00ta
    Not new to the forums just new to this section Just picked up my 2021 Denali 3.0 Duramax yesterday, traded in my 2015 LT Z71 CC. Love this new truck. it’s crazy the trade in value on trucks right now, it was too good of a deal to pass up!
  23. black00ta
    LOL - this is all true.
  24. black00ta
    Any updated on this? Mine has been doing this starting last year, I've tried cleaning the drain and this does not seem to be the problem? Logic tells me this is bubbling from inside the heater core - because it will start to do it almost immediately on startup... Thoughts? Thanks -Ryan
  25. black00ta
    The GM dealers around me are buying up all of the aftermarket ones as the factory still has not been able to supply enough to support the failures..I've replaced a few out of warranty ones at my shop but mine so far has not shown any signs of leaking. Fingers crossed.

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