Overheating trans

[slowmandan]

I've got a 2012 6.7L Diesel, 6sp auto trans. When I haul a moderate load (2 horses, 7,500lb total payload with vehicle + trailer) up a slow hill (7° grade plus going only 25 or 30mph because of turns) trans temp keeps rising. I've been up to 244°. Clutch fans works great on engine temp, but doesn't touch trans temp. SAE.org says 2013 model fixes an "engineering bogey."

My questions:

1. Do 2013 clutch fan and trans oil coolers retrofit onto my 2012 truck?
2. Should I instead look to aftermarket trans oil cooler and/or deeper, finned trans pans?
3. Am I just being a big ***** and 244° is not yet in the trouble zone?

My first post. Thanks in advance for the help.

 

[toofart]

I'm not sure how modern that chart is, but I've always gone with that. Newer vehicles all tend to run about 10* cooler than 10 years ago, so take it for what it is.

At 244 I'd say it's getting up there, but if it goes back to normal after the grade I wouldn't be worried about it. There is a red caution light for trans overtemp.

 

[BlownGP]

At 244 I'd say it's getting up there, but if it goes back to normal after the grade I wouldn't be worried about it. There is a red caution light for trans overtemp.

You mean a dummy light.. LOL
Yeah, when that comes on, it mean it's too late.. hahaha.


244 is very high to even when towing. Anything over 220 I would be worried.
That fluid will break down real quick pushing 240+

Google is your friend.
https://www.google.com/webhp?source...pv=2&ie=UTF-8#q=2012 dodge cummins trans temp