Recent content by RDEVans

  1. R

    2011 Yukon Denali Headlight ground issue

    Hey all, I have a 2011 GMC Yukon Denali that I believe is having a ground issue. Passenger side headlight works fine. Driver side was not working properly so I replaced bulbs, fuses, and relay. The headlight is still very dim on lowbeam and there is no high beam when I put on the brights...
  2. R

    Towing with 2011 Yukon Denali

    Well, made it there and back! Thanks for everyone's advice and knowledge. My plan going forward is to replace the radiator (I'm sure it's original to the vehicle) with a bigger one if possible, and upgrade the transmission cooler. The wife and I also talked and will probably downsize from the...
  3. R

    Towing with 2011 Yukon Denali

    I do have the range afm disabler plugged in as well.
  4. R

    Towing with 2011 Yukon Denali

    Thanks brother, appreciate all the info!
  5. R

    Towing with 2011 Yukon Denali

    Great to know about transmission temps and the trans oil being ok at high temps. Did they ever publish any info about the engine temp going upwards of 230 while towing? Or dis they cover that by the statement they made in the user manual? Thanks again!
  6. R

    Towing with 2011 Yukon Denali

    Thank you Sir. You have eased my mind tremendously.
  7. R

    Towing with 2011 Yukon Denali

    Thank you for your input Sir. Going up some hills today temp was 225 maybe up to 230. But went down when I leveled off. Trans temp looked like it did well, hitting 216-217 a couple times then going down.
  8. R

    Towing with 2011 Yukon Denali

    One more comment. Just looked in the book. It said while towing loads or going uphill, common to see temp fluctuate and to even approach or hit 250. At 260 is when operating above max cooling capacity. Do you guys concur with that?
  9. R

    Towing with 2011 Yukon Denali

    And my Denali does not have the k5l heavy duty cooling code. Anything I can do anything on the road to make sure everything stays ok? Or while I'm here at a koa?
  10. R

    Towing with 2011 Yukon Denali

    So made the first leg of the trip today. Towing up some hills at 55+60mph engine temp would hit 225-230. Something to be concerned about? Should I spray some water on the radiator to try and clean it some? Once I would get over the hill and level out or down hill the temp would come back...
  11. R

    Towing with 2011 Yukon Denali

    So made it for the first 3.5 hour drive. Ambient temp has been in mid 80s. In the hills and slower speed around Kansas city temp got up to 220 and trans up to 218. On the high way been running a little over 60 and on hills temp would climb a little. All that ok? And that's been using 5th as...
  12. R

    Towing with 2011 Yukon Denali

    Thanks for posting, I appreciate it!
  13. R

    Towing with 2011 Yukon Denali

    Thanks for the information! Mine has the factory trans cooler. Thanks for posting.
  14. R

    Towing with 2011 Yukon Denali

    Thanks for posting the picture, mine has it, good to go!
  15. R

    Towing with 2011 Yukon Denali

    Thanks, mine has it, thankfully!
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