Recent content by Tim907356

  1. Tim907356

    [SOLVED] 2012 6.2L Yukon Denali XL 172000 miles? Need help and cannot figure this very random problem out.

    I hope you don't mind a piggyback, but I just had a similar issue, and hope those engaged on your thread can help. 2010 Yukon Denali XL 6.2l Flex. Driving over the weekend, a message came up: Engine Temperature Hot; A/C turned off. Sure enough, no A/C, but also the engine temperature gauge...
  2. Tim907356

    2010 Yukon Denali Overheating when Towing

    By way of update on overheating...The OEM replacement did not work. The summer heated up and we overheated with a thoroughly flushed system, and new stock radiator. I've just replaced it with my originally intended 4-row all aluminum aftermarket radiator, and immediately see the difference...
  3. Tim907356

    2010 Yukon Denali XL Towing Sway

    My buggy has 204k mi., and I've been towing a 7k#, 30' travel trailer for a few years. The biggest issue is the sway at highway speeds. Most of it is when trucks pass by, and my rig gets pushed aside by the air pressure. I'm wondering what the best way would be to stiffen the rear end, and...
  4. Tim907356

    'Service Suspension System', 2010 Yukon Denali

    So to finalize the thread, I went back to the same guy with the $89 shocks and bought the matching compressor. Alls well now; no message and the system worked fine. So we load up the 27’ camper for a week on the road, and 5mi. out, the wife says ‘What’s that noise?’ It was the shocks evacuating...
  5. Tim907356

    2010 Yukon Denali Overheating when Towing

    Denso is on order from Rock Auto…I hope it fits; they didn’t list one for a 2010, so I ordered one for the 2012 model.
  6. Tim907356

    2010 Yukon Denali Overheating when Towing

    I get it…Denso or nothing!
  7. Tim907356

    2010 Yukon Denali Overheating when Towing

    It’s a Chinese-eBay rad.: https://www.ebay.com/itm/403900978737?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Oy-oQhUTQ1q&sssrc=4429486&ssuid=xAvo09aAQc-&var=&widget_ver=artemis&media=COPY
  8. Tim907356

    2010 Yukon Denali Overheating when Towing

    Great comments and rec’s from everyone. I found a 4-row all aluminum 2-3/8” wide aftermarket radiator that looks really attractive. With all hoses, thermostat and other bits replaced, wouldn’t this be the best cooling option?
  9. Tim907356

    2010 Yukon Denali Overheating when Towing

    In addition to the electric fans, should there/could there also be a clutch fan? The hub on the motor has threads for one, but it’s not there.
  10. Tim907356

    2010 Yukon Denali Overheating when Towing

    Mine is a '2500', 6.2L Denali. I'm due an oil change so I'll look for the block off plate. that sounds like a good option!!... Edit: KC4, dangit, it's already there1 :(
  11. Tim907356

    2010 Yukon Denali Overheating when Towing

    55mph on the backroads. I tried wicking it up once we hit the interstate, but that's where the temp hit 235, and I backed off to 50-55 again. It doesn't have an oil cooler that I can find/see, but that would be a good idea...is there an aftermarket kit to add one?
  12. Tim907356

    2010 Yukon Denali Overheating when Towing

    I talked to a friend, who said 'don't worry about it'...that 235 is safe to run. Even if so, the thermostat has always been my mental governor for appropriate engine temps, and I'm inclined to get it back to 210-212 if at all possible.
  13. Tim907356

    2010 Yukon Denali Overheating when Towing

    I have no idea on the ratio....Stock? I'm sure it wasn't used for towing before we got it in 2020 (used).
  14. Tim907356

    2010 Yukon Denali Overheating when Towing

    It's behind the small grate in the lower front spoiler. I fabbed a mount to put it in front of the 'grill' that's there.
  15. Tim907356

    2010 Yukon Denali Overheating when Towing

    The truck has ~175k miles on it. The background story is that we have been towing a 4200# dry weight Travel Trailer for about 5 years with minimal issues. At first, the transmission overheated, hitting near 230F on one of our first 'mountain' tows on a 90F day, so I put the trucool 40 in line...
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