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It depends on where you measure it and the load on the truck, the length of time under load and whether your in traffic running through the gears as well as ambient temperature.
I measure at the output of the converter.
In OD and some run time for normalization under light throttle, it runs about 155 +/-.
Good luck.
That is coming from the trans fluid sensor located on the solenoid body inside the pan. In my opinion that is the most accurate place to read the transmission temperature.
No, the fluid isn't the hottest there. It is in a great position to read the average transmission temperature, which in my opinion is the most important temperature.
You should start watching carefully at 220°F, and stay below 250°F. If the trans gets hot DO NOT SHUT THE ENGINE OFF! Idle or fast idle in park or neutral to cool the transmission.
I'm getting the reading thru the OBDII port with my ScanGaugeII.
Where on the trans would that reading come from?
What did you do to get the Scangauge to pickup the Transmission temp? Did you have to program something in? My son's is a 1998 F150 4x4 5.4L, and I can't find the trans temp. Thanks for any heads up on this. Currently display is MPG, Intake air temp, Coolant Temp, RPM's.
Thanks Gadget!!!! I currently have my son looking for the owners manual, but do remember seeing the "Tft" abbreviation. I didn't know what that was. Thanks again.
Thanks Gadget and Mr. Kovalsky, I had to do a little programming but now have TFT!!!!
Staying around 165 - 170 here in Texas today, no load, in town driving.
I bought the scangauge because the engine temp gauge stopped working. Traced it to a bad motor or whatever the needle is connected to behind the dash. Thanks again guys.
Are you able to get an oil pressure ("OIL") reading with yours? I can't with mine which seems odd since there is an oil pressure sensor.
I went to the Scangauge web site and poked around for a bit. I have a Scan Gauge II, which you probably have also, and it has the ability for the user to input some sensors you would like to monitor. Depending on the year of your vehicle, and the communication protocol used, extra sensors can be programmed in.
Since ours are both 1998 models, they have the least number of extra programmable points. If you google "scan gauge x gauge", some folks have figured out how to get sensors to read on some vehicle models. The programming is a bit confusing, but basically just follow the "+" and "-" buttons.