Join Date: Dec 2014
Location: NOVA (Ashburn), VA
ua_who said "The transmission starts to heat up a bit, especially with low range." I've had my TH tranny heat up quite a bit off-road when crawling up and down hills and such. What I have found differs in that it seems to handle the temperatures better (stays lower) if I do go into low-range and limit the tranny to shifting no higher than 3rd. I suspect that keeping it in low-range forces the RPMS higher and thus forces more fluid through the transmission cooler. That is just a guess on my part but I can't come up with any alternate explanation. In the past I've had the tranny temperature go up as high as about 232° (in hi-range) with no ill effects but I try to keep it no higher than around 200° and low-range seems to help with that.
2015 Trailhawk w/ V-6. Factory trailer package includes transmission cooler.
I believe gears 1-4 use the dog clutches, so there is less mechanical slip. Slip is where a lot of heat is generated.
I'm sure somebody will direct me on the exact gears.
'15 Deep Cherry Red TH w/Brown Interior. 3.2L V-6
Safety-Tec, Cold Weather, Technology, Comfort, Tow, Leather.
Gobi Stealth roof rack with ladder.
My testing platform for electronics/telemetry experimenting.