Recent content by the 18th letter

  1. the 18th letter

    Trans Fluid flush

    Has anybody actually done the upgrade? Some first hand experiences would be nice to hear, seems interesting.
  2. the 18th letter

    AFM Range Disabler Red

    Selling my AFM disabler RA003R red. I used for about 10k miles with no issue but recently got my BB Tune done with AFM tuned out, so this needs a new home. Box is slightly tattered at corners because I removed the Range device when the vehicle sat. The Range still has original plastic on the...
  3. the 18th letter

    What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

    Think a modification to the bcm to do it would be feasible? I went 2 years without getting wet and have hopefully learned my lesson but still wondering cause shit happens. To me, at least lol
  4. the 18th letter

    What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

    Last night after a nice evening out filled with spirits and a ride home with my lady writing bedroom checks on the way home, I didn’t put the Yukon in the garage and left sunroof tilted and of course it rained like hell. Not too bad inside considering the water that came down last night. Leads...
  5. the 18th letter

    What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

    Got about 150 miles in on my BB tune and it’s a sleeper. Throttle response on highways or accelerating is very noticeable. In my city driving I’ve noticed that the transmission is less jumpy. I also have a 92oct tune I’m gonna give a try but have no idea what it’s for lol. I don’t tow or race...
  6. the 18th letter

    Berta :-) '08 Tahoe

    6 months isn’t ownership, that’s a long term rental lol.
  7. the 18th letter

    issues with e85 ?

    I’ll let you know what BB tells me when they respond. I use E85 every so often for the cleaning benefits as it’s about the same cost as 87 but burns up faster. I’ve never ran super unleaded in mine.
  8. the 18th letter

    issues with e85 ?

    Which engine do you have? Do you normally use 92 oct.
  9. the 18th letter

    issues with e85 ?

    I think it depends on the tune. Recently did my tune and I have an 87/89 tune and a 92 high octane tune, which I assume is for running E85, since I have the 5.3 flex fuel. I did send BB a message asking for clarification.
  10. the 18th letter

    What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

    Last night I found my BB tune files hanging out in my spam folder :mad: . They were in there a few days so I hope they didn’t get influenced by bad actors. Got them loaded and took a quick test drive. It’s about time. If anybody needs a gently 10k used Range device let me know.
  11. the 18th letter

    What did you do to your OBS GMT400 Tahoe/Yukon Today?

    It’s never left me stranded or overheated but they’ve all started leaking at the plastic sides. Maybe I’m just unlucky lol usually about 24 months in I have to start adding at the reservoir to keep it filled. Once I’m filling it back up each tankful I start planning on putting in a new one.
  12. the 18th letter

    What did you do to your OBS GMT400 Tahoe/Yukon Today?

    Changing the radiator for probably the 5th or 6th time since 05. Radiator is definitely a weak point. Went with a local radiator store that has a lifetime guarantee. Was going to go with one from them about 10 years ago and here we are now :mad:
  13. the 18th letter

    Brand New Yukon - Warning light driving home from dealership

    I’m rarely in my car without my phone, why not just use your phone maps? I bought a pre-owned and I have a detailed travel history of the previous owner.
  14. the 18th letter

    2015 Tahoe LTZ No start/NO crank/Random electrical issues

    Check the battery cables, they can rot internally. May have to do advanced testing to detect it.
  15. the 18th letter

    Engine fan question

    My temp gauge only hits 210 if I’m in stop and go traffic on a warm day.
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