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  1. Quark

    Cabin air pressure

    Wouldn't a sunroof reduce the amount of the roof area that could react to pressure? Do all or some of these models have active noise reduction? Wasn't there more than one cause attributed to this problem, what about unbalanced drive shafts? I totally buy the transducer analogy but find it...
  2. Quark

    Cabin air pressure

    Would like to know the physics behind this. How do a few pin hole leaks in a massive positive pressure atmosphere cause variations great enough to be felt in the inner ear.
  3. Quark

    2021 Yukon XL AT4 arrival, and now mods!

    Send them a bill for 3 hours of what a trouble shooting technician would cost you and don't forget to charge for shop rags. $150 plus shop rags? It's only fair.
  4. Quark

    Financing

    There's no hurry slow down. Order in December March is the best month for 4 wheel drive rebates. Take a vacation stay away from this site for a week and pinch yourself if you find yourself thinking about it. I'm not a therapist but I stayed in a Holiday Inn Express.
  5. Quark

    Financing

    You really want this car, is it a necessity or is it an emotional need. I get it after being couped up I want a new toy but I won't be manipulated by my emotions or market conditions into being exploited. Someday in the not distant future the time will be conducive to buying or not. I may want...
  6. Quark

    Should I buy a 2021 Yukon AT4?

    I appreciate that but I've never felt the need to keep a spare vehicle to replace a new one that is undependable - until now. Days past dealers had loaners, salesmen would take care of their customers and buying a new car was practically trouble free. Today my salesman has retired and the...
  7. Quark

    Financing

    That might be a good idea to wait. If the chip shortage abates then we might see a glut of new vehichles making it a buyer's market. But who knows in these herky jerky times though Fed statements seem to lean toward transitory market conditions.
  8. Quark

    Extended warrant for 2021's

    If the extended warranty gives one the confidence to hold on to the vehicle for a couple more years it could be considered a cost saving.
  9. Quark

    Should I buy a 2021 Yukon AT4?

    I've anticipated the new platform for over two years and I'm still waiting. It's not just the GMs but all of the new vehicles are full of questionable mandated technology that is mostly unproven for the long haul. The only safe strategy is to have a backup automobile just in case it sits in the...
  10. Quark

    2022 Tahoe and Suburban begins production October 4

    Used to be factories shut down for 2 weeks in July to do model changeovers and maintenance. Changes to the line should be minimal since in is still a 2021 with a 2022 sticker on it and GM won't want to lose any production. Perhaps GM wants to put this model year behind them as soon as possible...
  11. Quark

    How about some gas mileage reports?

    I often average over 22mpg highway at 65mph. A recent 170 mile round trip averaged 21mpg counting a city bypass route with umpteen traffic lights. Admittedly I have a light foot and coast into red lights.
  12. Quark

    Production dates for 2022 Tahoe and Suburban Revealed

    It is close but not quite.
  13. Quark

    Production dates for 2022 Tahoe and Suburban Revealed

    I really wanted to go with the Duramax but I make many short hops to town and not enough long trips. Someone posted a schedule of driving to keep these running clean and I wish I could find it. Finally found it and it is a past post of yours. It's possible I could add some longer trips at more...
  14. Quark

    Nasty looking oil after 5200 miles of driving

    Like foam? Most filters block smaller particles as they are used and become more efficient until flow is reduced.
  15. Quark

    Lemon Law Settlement Reached With Our 2021 Tahoe

    Thank you, GM knows few will press the issue.
  16. Quark

    Production dates for 2022 Tahoe and Suburban Revealed

    I've looked at the three platforms comparing every trim level and option. This is what I've come to now it is a matter of time. What do you think? https://www.gmc.com/suvs/yukon/denali/build-and-price/summary
  17. Quark

    Nasty looking oil after 5200 miles of driving

    How do you know it has stopped filtering?
  18. Quark

    Owner Review - 2021 Tahoe LS Duramax

    Thanks for the revue I'm looking forward to the six month one also. Those left lane drivers are ultra irritating. The worst are the ones who come up and slow down so that you can't change lanes. After hitting the brakes you can see they are texting away. Nice review!
  19. Quark

    Engine Failure on New 2021 Yukon AT4

    Here is an interesting discussion of the DMax merits and demerits: https://www.duramaxforum.com/threads/should-i-buy-2021-3-0l-duramax.1012525/
  20. Quark

    Engine Failure on New 2021 Yukon AT4

    Hmm, welcoming a new experience. Keeping the new vehicle with DMax for five years would be relatively low risk. Might have to flip a coin, one side is fun and high fuel costs (though $400 a year more isn't much to factor) the other is learning a new technology and relative economy when fuel...
  21. Quark

    Engine Failure on New 2021 Yukon AT4

    Perhaps it is those 300 mile trips once or twice a month that keeps it trouble free?
  22. Quark

    Engine Failure on New 2021 Yukon AT4

    Sadly for my situation I believe you are correct. It would have been great to have had this engine when my work commute was 25 miles each way. Perhaps by next March the lifter problem on the 6.2 will be solved.
  23. Quark

    Engine Failure on New 2021 Yukon AT4

    I've been considering the DMax and so far I'm concerned with regen and my short hops to town mixed with infrequent trips. During April through October I may be on the road twice a month but through the winter I drive short errands maybe once or twice a week. Yearly mileage is below 7,000 miles...
  24. Quark

    Engine Failure on New 2021 Yukon AT4

    dupe
  25. Quark

    Engine Failure on New 2021 Yukon AT4

    That could indicate the rear seal and non-starting issues have been resolved or he just hasn't heard about them. GM truck forums have a little more history on this new engine. https://www.duramaxforum.com/forums/2020-lm2-duramax-powertrain.715/

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