'04 crew cab 6.0 with Edge Platinum Attitude with Juice. Oil temp runs 250, engine temp 190, trans temp 165 pulling a 2600 lb ski boat. Is all of these in the okay range? Why does the fan constantly go off and on when I'm pulling the boat? I run it with overdrive off in level 2 towing mode on the Edge. What's with the smell coming out of the the a/c vent? Smells like antifreeze but it's not blowing out of the reservoir cap. Can anybody help?