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  1. S

    Pinging on 87

    Thank you. Very helpful. I will have to ask the dealer to help, they flat refuse to do anything about it, saying no codes - no problem... :(
  2. S

    Pinging on 87

    Not sure what sensors we need and how to plot them but all sensors data is here in this log https://drive.google.com/file/d/131KZ-AiKNHXFdgCw8yaTqfCxAQoqBq7O/view
  3. S

    Pinging on 87

    I wish but Black Bear cannot tune 2020 trucks. They told me they never would be able to. I found that to be interesting as I am reading that DiabLew tunes 2020 successfully.
  4. S

    Pinging on 87

    @randeez here is the total knock degrees and advance plot for the same log. I spent hours reading about KR plots but still cannot determine. To me looks like I have pinging but not sure.
  5. S

    Pinging on 87

    On pure 93 there is no audible pinging even when I tip in throttle (trying to "lug") a bit at 65-75 MPH to keep the vehicle steady or uphill, with 87 Exxon it pings regularly, with Exxon 89 it is occasional but does happen. I have removed the catch can last night to diagnose further, from my...
  6. S

    Pinging on 87

    I have found logs from September 2021. I have them both as CSV as well as this zoomed out screen. I will collect new logs in the next 5 days but here is the data. I am seeing KR events but not clear for me how to interpret them, from limited reading, KR events happen all the time or is not the...
  7. S

    Pinging on 87

    In my state there was no Chevron, and to be honest it was by far the best 87 I had ever put in this truck, I was on a trip to/from FL and filled up there with Chevron, engine was smooth as butter and absolutely zero pinging. Exxon pings like mad. Shell is hit and miss, several times Shell did OK...
  8. S

    Pinging on 87

    Hi @swathdiver yes it is the same Dmitry coming out but this time with a new problem on my 2020 truck ;), my previous truck was 2018 Yukon (that one could not hold idle steady.) I have traded-in Yukon for for this one, speaks to me liking this GM full size trucks and determined to get them to...
  9. S

    Pinging on 87

    2020 Tahoe LS with 5.3, 6-speed, 31K miles. I have tried Exxon, Mobil, BP, Shell gas in 87 grade and on 87 and often on 89 truck pings on highway trips, I am cruising 65-70 MPH, engine is always hovering around 1800-2000 and when I am trying to maintain the speed or add just a bit of throttle...
  10. S

    GM Genuine Brand New OEM Subwoofer and Amplifier Kit by Kicker Part # 19355507 Accessories Never Used

    Best way to find out to avoid any miscommunication is to call your dealer and ask them if this part fits your VIN. They will be happy to do at least that for you. My dealer is so-so at best so I would not trust them but perhaps yours are good.
  11. S

    GM Genuine Brand New OEM Subwoofer and Amplifier Kit by Kicker Part # 19355507 Accessories Never Used

    I have gotten my info from this vendor Fitment Chart
  12. S

    GM Genuine Brand New OEM Subwoofer and Amplifier Kit by Kicker Part # 19355507 Accessories Never Used

    From what I gathered, Kicker amp and sub are not compatible with Bose. Non-Bose radios only.
  13. S

    GM Genuine Brand New OEM Subwoofer and Amplifier Kit by Kicker Part # 19355507 Accessories Never Used

    Still for sale, folks.
  14. S

    BB V2 autocal

    Hi, is tune included with this autocal v2, because they charge $400 to do a tune using your own autocal?
  15. S

    GM Genuine Brand New OEM Subwoofer and Amplifier Kit by Kicker Part # 19355507 Accessories Never Used

    Brand new never used or open GM Genuine OEM Accessories Amplifier and Subwoofer system made by Kicker for Tahoes 2016-2020 and many other GM trucks. ( Please note this is the not the cheaper Sub only kit but rather full audio upgrade system with amplifier, DSP and all parts, Retail rice at...
  16. S

    Tranmission Fluid flush and filter change

    Another option is to send ATF in for UOA and see what they say. Visual and sniff test is not reliable, factory fill ATF in my 2020 truck at 17.5K looked dark brown almost black on a probe and this truck does not even tow but it has severe short trip regimen due to COVID with twice a month of 5-6...
  17. S

    What is this hose in the wheel well?

    @87carl Thank you so much!!!
  18. S

    What is this hose in the wheel well?

    Thanks, guys if you have a pic of where to attach the grey anchor/tree please let me know. Thank you!
  19. S

    What is this hose in the wheel well?

    Folks, I have changed oil in my 2020 Tahoe LS 4x4 today and I have noticed this hose with a cap at the end sticking out into a wheel well. Certainly does not look correct. Any idea on what it is and where it should be attached to? Thank you in advance for your help!
  20. S

    Genuine GMC OEM OE Splash Guards Mud Flaps Black Rear 22922769

    Genuine OE GM GMC Mud Flaps Splash Guards for GMC Yukon. I bought them for Yukon that was traded in for Tahoe. I assumed they would fit Tahoe but they do not. So assume they are for GMC Yukon only. Year 2015-2020. Please note that I had peeled red cover tape from one guards to see if the guard...
  21. S

    Steering wheel is offcenter after tire rotation and balance

    You are correct, they did cross-rotate from non-drive axle. The pull is small but uncomfortable enough to be noticed. Dealer is saying that did what manufacturer tells them to do. What are my options, swap now front tires left/right?
  22. S

    Steering wheel is offcenter after tire rotation and balance

    Close to 9k miles since last rotation, total 14.5 miles on them. They look even wear to me and I do not see any issues. Dealer also did not note any problems with tires.
  23. S

    Steering wheel is offcenter after tire rotation and balance

    Indeed will give it a try this weekend. Thank you, @George B !
  24. S

    Steering wheel is offcenter after tire rotation and balance

    They adamantly claim they did not do alignment. Now I am even more concerned that they messed with something and did not put it back. I would not understand why would they do it? To get me to come back for aligment, that would be ridiculous? I will have to take it to a local suspension shop to...
  25. S

    Oil Testing

    I read on BITOG that almost all brands went to GF-6 and reformulated their products lines, some more than others. I am seeing that latest Mobile 1 EP is now all class III (<5% PAO) based on flashing and pour points at least in 0w20 weight, mighty Exxon is buying GTL from SOPUS for new EP oils...

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