Sluggish towing with GMC Yukon
I just picked up a used 2007 Jayco Exp 17C & towed it home last night with my 2011 GMC Yukon SLT. The drive was 2 hrs & lots of hills in TN. I had the tow mode on. It seemed to struggle up the big hil...
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Welcome to the world of travel trailer towing. Doesn't sound like your Yukon is struggling, it's just working hard, like it's supposed to. Wind resistence is your enemy, its kinda like running into the wind holding a 4' x'8' sheet of plywood in front of you. (There's also a vacuum created behind the TT that tries to suck the trailer backwards). Hopefully your Yukon has at least 3.73 gears, about minimum for TT towing (keeps the rpm's up where they need to be).
The weak part of the running gear is the transmission, make sure you have an auxillory cooler to keep it cool.
The weak part of the running gear is the transmission, make sure you have an auxillory cooler to keep it cool.
