Originally Posted by ck21084
....temp of the transmission climbing up to 210oF, this happened 25miles from the campground on interstate @65mph. The engine was not running hot(N on NORMAL)...The TV is a 93 E-150 5.8l with tow package....Any ideas on how to keep this thing cooler?
I occasionally towed the 31'er with a '96 E-150 - so I was a bit heavier than your 25'er....
First - ALWAYS tow with the OD locked out - even in the relatively benign hills of Florida.
Second - install a good analog Tachometer so you can see when your torque converter is "slipping" - I am willing to bet that the converter is not locked up at all if you are towing in the "OverDrive" mode - especially if your van is starting to get a bunch of miles on it. I tried to keep my max speed at 60 when towing with the Ford van - 55 would be better, I know that speed sucks, but the taller axle ratio in the van probably demands it. I would suspect that your van has 3.73 gears in the axle. If original, your fan clutch may be suspect, but if that is the problem your engine temp will start creeping up also.
I considered my '96 to be "barely marginal" as a tow vehicle - I used a bit heavier TV whenever possible.