OEM 47RE temp sensor?

CorneliusRox

CorneliusRox

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I know that there is a wire coming from the 47RE for a Transmission Temp Sensor Signal as seen here:

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Is this a varying temp signal? Possibly one that could be tapped into instead of running a standard gauge?

Just wondering if anyone has messed with that or has more insight into it.
 
It is what several systems use, such as the BD xmonitor.
 
CorneliusRox said:
really? I guess that is good to know. I have always just seen the bung/sensor style.

Is it accurate?
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If it comes on, your trans is more than likely fried, it'll kick it out of lockup then od. Same thing will happen if you run early gov prs sensor and od/lu solenoids in a late model (00-up) truck and visa versa...I think its supposed to come on around 230 or 240 degrees? Correct me if I'm wrong.
 
Mopar1973 said:
If it comes on, your trans is more than likely fried, it'll kick it out of lockup then od. Same thing will happen if you run early gov prs sensor and od/lu solenoids in a late model (00-up) truck and visa versa...I think its supposed to come on around 230 or 240 degrees? Correct me if I'm wrong.
Click to expand...

ahh, so it isnt a sensor for temp, but more a fail safe to try and go into limp mode and try to save your trans? That is what I was thinking at first when I saw it.
 
It is a temp sensor. I think it is a thermistor(resistance varies with temp). If you know the values at a given temp you could use it. To be honest as cheap as a trans temp gauge is, I would just use the trans temp gauge.
 
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