Noted 7AT Transmission Temps. (Street Driving)

THE BULL · 07-27-2021, 01:18 PM

The transmission has already a temperature sensor that can be read with Torque/OBD fusion without having to install anything.

In this aspect placement of the temp gauge will also affect readings.
I take the OEM one would read the highest of temps being that is placed internally in the valve body.

I ranged from 150-200 in the South FL summer with a small oil cooler depending on how much city driving I do.

Spooler · 07-27-2021, 02:07 PM

Quote:

Originally Posted by THE BULL

The transmission has already a temperature sensor that can be read with Torque/OBD fusion without having to install anything.

In this aspect placement of the temp gauge will also affect readings.
I take the OEM one would read the highest of temps being that is placed internally in the valve body.

I ranged from 150-200 in the South FL summer with a small oil cooler depending on how much city driving I do.

Correct, pan temps will be hotter than hot line temps.

THE BULL · 07-27-2021, 02:23 PM

Quote:

Originally Posted by Spooler

Correct, pan temps will be hotter than hot line temps.

So the OP should be ranging in the same temps I probably was.
I utilized a small thermostatic cooler from a Lincoln truck.

Could use an upgrade however having one helped me stay in that range for longer time.

Rusty · 07-27-2021, 08:09 PM

The hottest temp is the line going to the cooler. As the fluid has already did it's work and picked up the temperature. The coolest temp is the line coming from the cooler back into the tranny. It has lost it's temp. The pan temp is about an avenge temp of the whole tranny. On my Power Wagon. I had placed the temp sensor in different locations over the years. I'm happy with it sitting in the pan for now. I've seen temps over 300F coming out of the tranny.

Tractionless · 07-29-2021, 10:17 AM

Quote:

Originally Posted by Rusty;4004485[B

]The hottest temp is the line going to the cooler.[/B] As the fluid has already did it's work and picked up the temperature. The coolest temp is the line coming from the cooler back into the tranny. It has lost it's temp. The pan temp is about an avenge temp of the whole tranny. On my Power Wagon. I had placed the temp sensor in different locations over the years. I'm happy with it sitting in the pan for now. I've seen temps over 300F coming out of the tranny.

Exactly why I placed it in the hot line to the cooler.

From my research of the FSM, the trans. or other warning light won't come on until the temps. hit 356* in a 7AT!

Tractionless · 07-29-2021, 10:14 AM

Quote:

Originally Posted by THE BULL

The transmission has already a temperature sensor that can be read with Torque/OBD fusion without having to install anything.

In this aspect placement of the temp gauge will also affect readings.
I take the OEM one would read the highest of temps being that is placed internally in the valve body.

I ranged from 150-200 in the South FL summer with a small oil cooler depending on how much city driving I do.

I know it has a temp. sensor and is why I commented I'm tired of waiting on ECUTEK to install the .pid into their firmware. Rather have the gauge I can glance at than have to jump back and forth with a different OBD2 port bluetooth/wifi between Torque and ECUTEK just to get one parameter.

07-27-2021, 08:09 PM	#4 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,573 Drives: 2011 Nismo GM 6M Rep Power: 2684440	The hottest temp is the line going to the cooler. As the fluid has already did it's work and picked up the temperature. The coolest temp is the line coming from the cooler back into the tranny. It has lost it's temp. The pan temp is about an avenge temp of the whole tranny. On my Power Wagon. I had placed the temp sensor in different locations over the years. I'm happy with it sitting in the pan for now. I've seen temps over 300F coming out of the tranny. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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07-27-2021, 01:18 PM	#1 (permalink)
THE BULL Base Member Join Date: Apr 2021 Location: Florida Posts: 216 Drives: G37S Rep Power: 26850	The transmission has already a temperature sensor that can be read with Torque/OBD fusion without having to install anything. In this aspect placement of the temp gauge will also affect readings. I take the OEM one would read the highest of temps being that is placed internally in the valve body. I ranged from 150-200 in the South FL summer with a small oil cooler depending on how much city driving I do.