Thanks for all your help guys, but my tranny is still getting hot. I changed out the cooler bypass valve today but she still gets hot in stop and go traffic, and while towing. The transmission does cool down alot faster on the interstate now, so I know changing it helped.

I have looked at other threads about 6.0L versus tru-cool, and a couple others, but I still need help with my decision.

I live in New Orleans and we have 95 degree temps with 95% humidity right now. I currently have the stock cooler in series with some crappy cooler I got at pep-boys. I ordered flex-a-lite flx-278 dual electric fans http://www.flex-a-lite.com/auto/html/ford-diesel.html which should be in any day now. I ordered these in hopes of pulling more are at slow speeds and in traffic, but we'll see.

My question is considering my current setup and location should I use the tru-cool, 6.0L, or one of these with built in fans?

http://www.atsdiesel.com/ATSWebsite/...rd/Cooling.asp
http://www.bmracing.com/index.php?id...s&sid=4&pid=75

Thanks in advance, Nick

 

I've not followed your other thread, I suppose there was one, so cannot comment as I have no idea what has been covered.

 

I tow a 16 ft enclosed trailer around Cincy in stop and go traffic 6 days a week, hauling my mowers from job to job. I am running 35's and installed the tru cool (can't remember the number, but it's the largest one, MAX, w/out thermal bypass valve). I ran it in series w/the stock and have seen a HUGE difference. Temps stay below 150 degrees, and that is going around local roads, not the interstate. My vote is for the tru-cool max!

 

tru-cool max gets my vote also. since installing it i havent seen any temps over 150 and they rarely get to 125.

 

Thanks for the opinions guys. Please keep them coming.

 

What sort of temps are you seeing?

 

I'm seeing up to 220 no load and close to 240 towing, and that sucks.

 

Oooh, that is not good. Was there another thread about this before so that I can read up?

 

Refresh my memory. Did you check the validity of the readings? IOW are you sure that when it say 200, it is really 200?

 

Nick,
I'm having similar issue here in NM with 95 degree days and mountainous terrain. I found that I run just under 180 with the 6.0 cooler unloaded and 210-215 pulling 12000 lb 5th wheel. If I hook my trucool up in series it goes up to just over 180 unloaded and 240 pulling so the trucool doesn't get used. I verified flow and seems to be good and guage is reading correctly. Temp of oil returning to tranny is cool and can touch it no problem. I have a new bypass on the way and hope that helps because it should definately run cooler with the trucool hooked up but doesn't.

I was told in one of my posts that maybe the sensor was bottomed out but haven't checked that yet. If you get it figured out definately post your results.

 

I am pretty sure that it is really getting that hot. It will burn the hell out of you if you touch the return line.

For anyone interested this was my previous thread, but it pretty much says the same thing.

https://www.ford-trucks.com/forums/s...d.php?t=499706

Thanks