View Full Version : auto tranny fluid temp


camaro man
May 12th, 07, 08:41 PM
I'm in the process of installing a transmission fluid temp gauge. I see the temp gauge goes from 100 to 250. What is the normal operating temp range?

Brian Lewis
May 13th, 07, 07:57 AM
According to TCI, under 200

http://www.tciauto.com/Products/TechInfo/trans_life_expectancy.asp

BlackoutSteve
May 13th, 07, 08:25 AM
As cold as possible!
Mine sits on 160F on the highway.

BPOS
May 13th, 07, 10:07 AM
FYI - the gauge should go in the pan.

Brian Lewis
May 13th, 07, 11:31 AM
I recommend putting the sensor in the pan and the gauge inside the vehicle! :)
You can buy a trans plug that fits the pan that then threads the sensor, you then can remove the sensor to drain.
B&M Drain Plug Kit

BPOS
May 13th, 07, 12:06 PM
:clonk:

77wolf10.85
May 13th, 07, 01:45 PM
I recommend putting the sensor in the pan and the gauge inside the vehicle! :)
You can buy a trans plug that fits the pan that then threads the sensor, you then can remove the sensor to drain.
B&M Drain Plug Kit

I love it:D , If I was in BPOS shoes I'd be telling you where I was gonna put the stinkin gauge:hurray: LMAO

Industrial stuff we put temp devices in flow lines so it can transfer heat to the device of choice quicker. Sitting static is slow to detect changes.

camaro man
May 18th, 07, 05:53 PM
I put the gauge in the in the car and the sensor in the drain of the tranny pan:D . I have a Perma-Cool 24" frame rail tranny cooler and a Derale transmission pan cooler. It's the extra deep pan with the cooling tubes in the bottom. Anyway, took the car for a ride at highway speeds for about 20 minutes. The gauge never moved so I drove around town and after about 10 minutes the temp came up to 125 degrees. It never went above. Does this seem right?

BlackoutSteve
May 18th, 07, 10:30 PM
It will depend on you converter stall speed, weight of your car, horsepower and gearing, among other things.
It's the stop-start around town that will make more heat.

77wolf10.85
May 19th, 07, 05:33 AM
I put the gauge in the in the car and the sensor the drain of the tranny pan:D . I have a Perma-Cool 24" frame rail tranny cooler and a Derale transmission pan cooler. It's the extra deep pan with the cooling tubes in the bottom. Anyway, took the car for a ride at highway speeds for about 20 minutes. The gauge never moved so I drove around town and after about 10 minutes the temp came up to 125 degrees. It never went above. Does this seem right?


10 MINUTES/125* seems normal to me. It takes my Duramax/Allison a longtime to warm up, and ambient temp/load play a large part.