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  1. S

    Have to replace my 2015 Yukon XL Denali

    We had the power running boards on our Denali, they were temperamental. But spent a lot of time in New England. Never had an issue with the adaptive cruise.
  2. S

    Have to replace my 2015 Yukon XL Denali

    Good to hear, was worried about some of what I had read about the 10 spd.
  3. S

    Have to replace my 2015 Yukon XL Denali

    Thank you for your reply!
  4. S

    Have to replace my 2015 Yukon XL Denali

    Thank you for your insight!
  5. S

    Have to replace my 2015 Yukon XL Denali

    Got into a car accident and time to replace my 2015 Yukon XL Denali - 200k miles. Probably was time anyway - eating 1 qt of oil every 1000 miles, a bunch of electronics failures that I was living with. I did replace the transmission a year ago because of the failed torque converter but never...
  6. S

    Overheating transmission

    Pretty sure 6 speed. Not very frequently.
  7. S

    Overheating transmission

    This the superior product you referring to? https://superiortransmission.com/product/superior-stl010/
  8. S

    Overheating transmission

    Cbv?
  9. S

    Overheating transmission

    Yeah unfortunately I am not savy on the system. I would love a diagram to see how everything flows and what could be a fail point. Like - is there a TXV or thermostat that could have failed?
  10. S

    Overheating transmission

    No. Assumed dirty fluid/clogged filter.
  11. S

    Overheating transmission

    2015 -Yukon XL Denali with 190k miles. Transmission overheated 2 days ago. Changed out the fluid and filter (overdue). Nothing remarkable on the magnet or in the fluid - just dirty. Just drove it after the change out and temp was 225-250 and rising in 25 min of driving. Am I just screwed into...
  12. S

    No gps signal

    My 2015 Yukon xl Denali has no gos signal - when you go to the built in map the system does not know where it is. Anyone fix that before?
  13. S

    Issues programming new key fobs

    I am trying to program new fobs and am having an issue. I follow the steps in the manual and get to the part where the DIC says “ready to program key #”. After I push the start/stop button nothing happens. The key is not programmed. I have done this before with no issue.
  14. S

    Replacement ride height sensor

    “Service leveling system” code on dash. Replaced compressor, still in. Shop read it and saw voltage was off for one of the sensors.
  15. S

    Exhaust system rattle

    Can that valve be replaced?
  16. S

    Exhaust system rattle

    AFM is enabled. The rattle is more tied to rpm/gear selector than v4/v8 mode. But is there somewhere I can read about this valve?
  17. S

    Exhaust system rattle

    I have a 2015 Yukon XL Denali that has a rattle under the center of the vehicle. Replaced the muffler, checked all of the heat shields. Comes in and out at certain RPM’s. Shop thinks it may be the mid-exhaust flex coupling (piece circled in red) but on the Denali’s it is welded into the...
  18. S

    Replacement ride height sensor

    I have a 2015 Yukon XL Denali with stock rear air suspension. I need to replace the right rear ride height sensor - 1. Any reason to use something other than stock AC Delco parts? 2. Does it make sense to replace both left and right rear sensors at the same time? Thanks.
  19. S

    2022 Yukon Denali

    How do you install a Roku in the back?
  20. S

    2015 Yukon Denali XL Rear Shocks on backorder

    purchased Arnott Air Spring AS-3066 from autozone
  21. S

    2015 Yukon Denali XL Rear Shocks on backorder

    Have a 2015 Yukon XL Denali with Magride. Doing a delete of the front magride (have all parts in hand) but I also need to replace the right rear strut that went bad. OEM part (84176675) is on back order. What other options can I use for OEM and do I need to replace both rear struts at the same...
  22. S

    Just purchased 2015 Yukon denali need some advise

    Thank you! Sent from my iPhone using Tapatalk
  23. S

    Just purchased 2015 Yukon denali need some advise

    What is the software/firmware update everyone is talking about? I have a 2015 Yukon XL Denali that rides rough. I have asked about TSB stuff at my dealer and they say nothing doing. I had both front struts replaced at 56k miles. Just got told they are leaking - 50k miles later. Ready to delete...
  24. S

    Engine rattle

    Yeah I was doing that with the muffler tech. But if it was that wouldn’t it be speed dependent and not rpm dependent? Sent from my iPhone using Tapatalk
  25. S

    Engine rattle

    It also does not come in if the car is in park and the engine is rev’d through the offending rpms. Sent from my iPhone using Tapatalk

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