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dvzzz

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  1. dvzzz
    What was concerning that advisor sounded like they had seen it few times with injectors being at fault. However, it felt like this is the work that they are not interested in. He did not say that but it was obvious that he was willing to risk a scandal (I had to take time off work to drop off the car and I had loaner reserved and confirmed.) We came to live in times where dealer does not have to worry about customer care, and if dealer and GM do not want to work on it they can send us packing. My theory on that is - GM does know about this narrow manufacturing defect or has difficulty balancing 8-cylinder as it would reduce the manufacturing yield, it is much cheaper to adjust computers to ignore this misfiring and recording a code. I know it is a conspiracy theory but at the end of the day in the age of profit-driven decision-making customer care is not a factor and does not matter. Again, yes conspiracy theory that is not likely to be confirmed ever.
  2. dvzzz
    Yes, I followed all of your posts and found it, it was key to ensure that they even consider it for Yukon. Thank you.
  3. dvzzz
    Really appreciate it! Thank you for all your help, I am glad I have your support. With your help I will either fix it or will know that I cannot.
  4. dvzzz
    Yes, 100% I cannot take it either. Really drives me nuts but even more my wife who I convinced to buy an American truck. Such a fine interior and quiet ride but drives both my wife and I nuts to have these rough idle. I also noticed that it does not run smooth also when started cold in the morning ~1500-1700RPM, tach needle visible moves and it is misfiring even at the higher RPMs. These other dealers will be plan B next week.
  5. dvzzz
    I wish we could, we have been a Toyota single car household for the past 9 years, and never had to leave the car at the dealer not even once, I guess it never broke now that I am thinking. I did all maintenance on the Toyota so there was not even a need to take it to a dealer.
  6. dvzzz
    I mean the person accepting the vehicle, he was reading my documentation. No, not confirmed by the technician. They did not even take the vehicle in. I got a feel that "no loaner" available is story is made up to make me go away to another dealer.
  7. dvzzz
    My update from the dealer's visit. First of all I have provided them with all info that you helped me with here and then write up from the local ASE mechanic. Advisor disagrees that mounts are the source of vibration, he felt that mount replacement will only mask the problem and I will be needing new mounts in 20,000 miles. In his mind this is a fuel injector problem but since there are no codes there is no way to find and nothing to repair until codes are showing. My question can injector be "misfiring" and no codes? What do I need to do to get them to repair? Can they say "it is operated as designed" as send us away and we have no recourse? Regardless, they did not take the truck in saying I did not reserve the loaner, even though I had it in writing in the appointment confirmation email, but what are you going to do if they say they do not have a loaner available? They are severely backlogged and it will several weeks before they have loaners avail. And this is the dealer with 4.5 rating, all other Chevy/GMC dealers are at 2.5 around here. So far my experience with GM product and support was not stellar but I will call next week to see if we can schedule us in.
  8. dvzzz
    I will keep everyone posted. Scheduled for tomorrow with another dealer. Sent from my iPhone using Tapatalk Pro
  9. dvzzz
    Thank you for this tip, I will try it again tomorrow with another dealer. I bought mine far away as well, it was the color/package/price that I needed to fit my budget. Rough idle really rears its ugly face only when fully warmed up and in D, did not sense it much in the cold test drive thinking fully under warranty with 7K miles and CPO. I have tried the M5 trick to ensure that AFM is not a factor and it does not change it in a slightest. I have tried Techron, and same - no change. Brand new engine air filter and again - no change. Either mounts or electrical.
  10. dvzzz
    I am in a somewhat similar position, was so excited to drive it home. Great condition GM company vehicle and CPO 2018 with 7000 miles. Mine misfires/misses, local independent mechanic told me yes he can easily feel it but no codes for it. Folks on these forums are sharing that is very common to rough idle like that but my 2 test drives I did show that they can idle butter smooth. Selling dealer told me - “no codes, nothing to fix, all 8- cylinder engines are like that, just live with it...” Why are you are you even thinking about trading it in for another GM? Chances are you can get a smooth idle with 2019 but feels like lottery, for me it is a lot of money to gamble with. I am seriously thinking about trading it in to older Nissan or Toyota 8-cylinder. I love how quiet my Yukon is, it has great looks. Almost everything I wanted except this idle. Sent from my iPhone using Tapatalk Pro
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