GM Yukon XL Denali Transmission Temps
My main tow vehicle is my RAM CTD, but when we take the RV as well the truck has to pull my 7000 pound boat. So then we use my 2011 Yukon XL Denali to tow the Malibu. It has always run hot - both...
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@Chuck D, the Yukon runs 220* (or so) on flat ground towing. It is going up passes that it runs higher, and it takes more time to cool down after cresting the pass than I would expect - so maybe 10 minutes above 240*, and a couple minutes above 250*? Those are estimates as I didn't think to time it.
I do not have any obstructions in front of the grill.
@Hawkeye, wow, I really didn't expect that to be normal operating temps per GM. But that does pretty much go with what I have had two dealers tell me.
The truck does get hot enough that the outside temperature gauge is pretty much worthless anytime I am towing (displays around 10* above ambient temp), and the floor of the Yukon gets hot enough to make the dogs uncomfortable/too hot laying on the ground.
I will look into that Tru-Cool.
I do not have any obstructions in front of the grill.
@Hawkeye, wow, I really didn't expect that to be normal operating temps per GM. But that does pretty much go with what I have had two dealers tell me.
The truck does get hot enough that the outside temperature gauge is pretty much worthless anytime I am towing (displays around 10* above ambient temp), and the floor of the Yukon gets hot enough to make the dogs uncomfortable/too hot laying on the ground.
I will look into that Tru-Cool.
