Just install an oversize transmission cooler and be done with it.
My RV already has a transmission cooler. I have been having some engine overheating problems (crusty radiator is being replaced) and as part of the project I have installed a dual temperature gauge in the dash. I have already wired one sensor into a new thermostat housing neck but am wondering how to do the transmission.
I DISAGREE, the temp out of the TQ can vary WILDLY and is really not useful as a single value variable. There are no standards to my knowledge for that temp to compare temps to for monitoring. The important temp is what the actual tranny is operating at which is the sump temp and the test port the OP is talking about is a common place to measure that temp.
There is tremendous debate on this on the internet. The test port is obviously the
easiest place to put the sensor.
But it seems to me that the worst-case measurement would be right as the fluid exits the transmission. The fluid will never be hotter than it is right there.
But on the other hand, you don't constantly want to be keeping your eye on a gauge that keeps changing value to see if it is going to overheat this time. Maybe a more stable output like the test port is a good idea.
I just have to find out whether this GlowShift sensor needs an extender for the E40D test port.
Steve
