Just wondering?
Also, what is too hot?

 

Running down the highway with the tc locked-about 150*F
Running around town outside temp 90* the tranny is 180-190*F
Backing my trailer up my steep long drive-240*F

 

Too hot? On the hwy I would say over 160-170*F.
Ram air makes all the difference. Just pull in close behind an 18 wheeler, if you want proof. Temps will be higher if towing.

In Grid Lock... stop & go, I would shift to neutral at 200* and above and rev it up for added cooling.

RJ

 

That's about what I see.

 

How long you guys have to drive that you got those readings, Mine doesent even rise to the scale wich starts on 100F.

Something wrong? Broken gauge?

 

I'm guessing your gauge is mounted in the Pan?
That takes a LOT longer to register temps, especially in colder climate.

My sensor is in the hot line coming out of the tranny and shows temp in 5 min +/-.

RJ

 

No. Mine is plugged in the trans block, upper than oil pan.

 

To test gauge....
Pull your sensor and fill hole with a pipe plug. Then dip sensor into boiling water! See if it reads 212*F/100* C.

RJ

 

Ok. I'll try that.

Thanks.

 

Absolutelly correct!
The sensor should be in the hot output line to the cooler.

See this thread for more info:
https://www.dieseltruckresource.com/...ght=5011244-AA

And see this thread for reasons why you'll get an inacurate reading if you mount it some where else:
http://www.dieseltrans.com/phpBB/viewtopic.php?t=558