Recent content by SuperOldSchool

  1. SuperOldSchool

    '21 Tahoe Z71 Transmission Failure

    Is it now fixed!?
  2. SuperOldSchool

    2015 Yukon Denali - Cleaned throttle body today

    Glad you saw results. I didn’t at all.
  3. SuperOldSchool

    Changed my filter and fluid on 8l90 8 speed today

    Yes, reuse it.
  4. SuperOldSchool

    2015 Yukon Denali - Cleaned throttle body today

    Throttle body cleaner. Avoid getting it into the pivot pins of butterfly. Move the butterfly very slowly and gently . Have fun!
  5. SuperOldSchool

    2015 Yukon Denali - Cleaned throttle body today

    Hello all, Sharing some pics of cleaning my throttle body at 140k. I have never cleaned it before(on this truck) and was a bit apprehensive after reading so many say they had issues after doing so - high idle/ unable to get it to relearn…..I had no issues. I bought a new TB gasket, and went...
  6. SuperOldSchool

    2015 Yukon Denali replacement brake parts recommendations

    Another vote for PowerStop Z36 kit. Have them on my 2015 and they are great. OEM kept warping for me. These have not.
  7. SuperOldSchool

    2015 Yukon SLT - Sunroof No Power

    I had this same nonsense going on. I noticed some burnt residue by the sunroof switch too. I ordered a new switch. Number 8 fuse on driver side still blowing out. It would work until I opened the console. I popped the console lid inner cover off and also removed the console rear panel...
  8. SuperOldSchool

    Most miles with stock AFM system?

    2015 Yukon Denali stock @ 138k miles. Had a lifter replaced at 72k.
  9. SuperOldSchool

    Don’t forget to flush your brake system - 3yrs or 45k

    I tow and I do brake aggressively, so brakes running hot.
  10. SuperOldSchool

    Don’t forget to flush your brake system - 3yrs or 45k

    DOT 3. I may use 4 next time and see if that stays cleaner longer
  11. SuperOldSchool

    Don’t forget to flush your brake system - 3yrs or 45k

    OP again. Just flushed at all four wheels today. It gets so dirty so fast…. 130k (30k interval) and about 1.5 years since last service.
  12. SuperOldSchool

    Changed my filter and fluid on 8l90 8 speed today

    OP again. Changed again today (fluid and filter) at 130k…. 31k on the fluid. It was still pretty red and not much paste on the magnets. Also, added the SureCool thermostat to lower trans temps. Good stuff!
  13. SuperOldSchool

    Put a new transmission in my 2004 Yukon…

    Redneck engineering at its best! ‘Merica
  14. SuperOldSchool

    Put a new transmission in my 2004 Yukon…

    Really nice job! Love seeing folks take big projects on with success!
  15. SuperOldSchool

    I made it! 2015 Yukon XL Denali, , 300,000 miles

    Hey tuffguy, at what mileage did you swap out the trans thermostat for the colder one? I was contemplating this, but not sure worth it at 120k miles. Thanks
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