In my 04 lly when I tow anything now, the trans gets warm. I mean towing a Small tractor about 5 miles or so and I'm not pushing it hard. Running about 45 or so. It'll get over 220-230* It got hot on me about a month ago towing same tractor and trailer. The engine got hot too and the trans did too. I mean clear over in the red. So after that I had both the trans flushed and new filters put in and the radiator flushed too. Trans isn't shifting weird or anything. Dealer said fluid looked good and didn't smell burnt. So I'm wondering if there is an interval issue or if it could be a thermostat not kicking in to get the fan going in time. Any info would be great. Truck has a mild tune in it bc it's my work truck. Normal driving the temp stays around 170-190 and engine temp stats around 180-200 depending on air temp.
