Tranny cooler?


that last one is the same exact one im running. Your most likely going to need more 3/8" rubber hose and the correct fittings because the supplied fittings won't quite work. PM me or re-open this thread is you have any install problems. This is a really good idea to do:nice:
 
yeah i have since re-routed mine to an identical location

:nice:
I have a [FONT=Arial, Helvetica][SIZE=-1][FONT=Arial, Helvetica]Hayden Transaver Plus rated for motor homes, large trailers and 5th wheels. My transmission fluid temperature rarely gets to 150* F.

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you know, it's good for it to get warm too. Overheating is the main problem, not heat in general; like when your engine is cold, you dont abuse it, same can be said for the tranny
 
:nice:

you know, it's good for it to get warm too. Overheating is the main problem, not heat in general; like when your engine is cold, you dont abuse it, same can be said for the tranny
I totally agree. I had it hooked up standalone and bypassed the factory cooler. My TFT would not go past 140* in the winter. Based on many recommendations, I hooked it up with the stock cooler in series. The reason was that it would warm up the fluid. Blah! I saw no difference. The coolant in the radiator is never hot enough to warm up the transmission fluid. Now I have a very efficient cooler that feeds into a less efficient cooler. Another myth busted...

I'm considering adding a thermostat to the transmission fluid cooler. I bought one from Summit Racing that will open up at 180*.

I found this a long time ago.
engine_trans_temps.gif
 
I totally agree. I had it hooked up standalone and bypassed the factory cooler. My TFT would not go past 140* in the winter. Based on many recommendations, I hooked it up with the stock cooler in series. The reason was that it would warm up the fluid. Blah! I saw no difference. The coolant in the radiator is never hot enough to warm up the transmission fluid. Now I have a very efficient cooler that feeds into a less efficient cooler. Another myth busted...

I'm considering adding a thermostat to the transmission fluid cooler. I bought one from Summit Racing that will open up at 180*.

I found this a long time ago.
IMG]http://fordfuelinjection.com/files/engine_trans_temps.gif[/IMG]

you know, your tranny has a thermo-valve. Just because the fluid after the coolers is 140 degrees doesn't mean the tranny is. It's mixing with the hot fluid inside the tranny - then if the tranny gets on the cold side it will send less fluid. Cuz if you notice, that pics says trans pan temp, not after cooler line fluid temp.
 
The temps are based on what my Xcal tells me. It's whatever the PCM is using, wherever the sensor may be. I'm assuming it's in the transmission otherwise it wouldn't be too useful for the PCM.

I've never heard of a thermo-valve in the 4r70w. I guess I have to read up on it. Got some URLs?
I'm not using a technical name in the slightest, just describing what it is. When i was reading about how to rebuild the 4R and talking with my builder i was told how it works. It acts like a thermostat, that's all i remember:( I should use my new x-cal to monitor mine as well, still havent figured out how to use this thing -lol.