Thread: Transmission temperature sensors

Originally Posted by TDCRacing

Where would be a good spot to hook an external temp sensor to? I belive I have heard from you that there is not a eally good place. I just need something to tell me if something is wrong. It does not have to be a 100% accurate temp.

Interested in knowing as well. I have a scanner, but for times I don't have the scanner on, it is nice to have a general idea.

Using a scan tool is the best as the sensor is in a pretty good location. Threading it in to the pressure port on the top of the case never reads correctly and I often see the temps read up to 40 deg too high here because of heat soak as you are reading more actual metal to metal case temp than actual fluid temp. The pan is a good spot to put a temp sensor and I know Scotty was talking with me a while back about using one of the holes on the back of the case and drilling through into the back of the trans to put a sensor here and it would be a good spot also as it is just above the pan rail. A temp sensor wont tell you there is an instant problem going on as it takes a fair amount of time for the fluid to change temp.

Originally Posted by Trannyman95

The pan is a good spot to put a temp sensor and I know Scotty was talking with me a while back about using one of the holes on the back of the case and drilling through into the back of the trans to put a sensor here and it would be a good spot also as it is just above the pan rail.

I plan on trying that out as well when I put that sucker back together.