Transmission Overheating

[Kestral]

Is it possible the Bullydog could be giving a false reading?

[HiBRiD109]

I have the Bully Dog installed.

I thought about the sensor but the transmission runs at around 190 in town. It is just under load (400 - 500lbs in the back) when going up long steep hills.

Ok, you mentioned in your original post that you had the transmission fully serviced. Did you have the overheating issue before that as well? I know how transmission work but I don't have much knowledgeable on how cooling and the fluid work.

I watched this video to give me a better understanding on fluid. Not directly related and he doesn't mention overheating but gives you some insight.
https://www.youtube.com/watch?v=o690DovjDAc

[aussie370]

Torque converter with incorrect stall can make the tranny run hot.

Im thinking its an oil or torque converter issue.

Everything has been replaced except the valve body in which the soft parts were changed and tested.

I have the Bully Dog installed.

I thought about the sensor but the transmission runs at around 190 in town. It is just under load (400 - 500lbs in the back) when going up long steep hills.

Is 190 Celsius or Fahrenheit degrees? If it's 190 degrees F., that's normal operating temperature for transmission fluid.

it's F

Is it possible the Bullydog could be giving a false reading?

I don't think so as all other readings are normal such as engine coolant 195 - 200F etc

I have the Bully Dog installed.

I thought about the sensor but the transmission runs at around 190 in town. It is just under load (400 - 500lbs in the back) when going up long steep hills.

Ok, you mentioned in your original post that you had the transmission fully serviced. Did you have the overheating issue before that as well? I know how transmission work but I don't have much knowledgeable on how cooling and the fluid work.

I watched this video to give me a better understanding on fluid. Not directly related and he doesn't mention overheating but gives you some insight.
https://www.youtube.com/watch?v=o690DovjDAc

Yes, it was slipping and overheating before under load