Nissan Repair: TRANSMISSION GAUGE, temp gauge, temp probe

Question
I HAVE AN 88 PATHFINDER 4WD,V-6 AND IT HAS A DUMMY LIGHT FOR THE TRANS.OIL TEMP BUILT INTO THE DASH. I CANNOT FIND THE TEMP. PROBE FOR THIS LIGHT ON THE TRANSMISSION. CAN YOU TELL ME WHERE IT IS LOCATED ON THE TRANSMISSION? I WOULD LIKE TO ADD A READABLE TRANS.TEMP. GAUGE BY REMOVING THE PROBE FROM THE DUMMY LIGHT AND INSTALLING A PROBE WITH WIRE CONNECTED TO A GAUGE. I TOW A BOAT AND WOULD LIKE TO KEEP AN EYE ON THE TEMP. OF THE TRANSMISSION. DOES THIS SOUND LIKE THE BEST WAY TO DO THIS OR DO YOU HAVE A BETTER IDEA? THANK YOU IN ADVANCE FOR ANY HELP YOU CAN GIVE.

Answer
Hal,

The temperature probe is in the line coming from the transmission to the radiator cooler.  An aftermarket one could installed the same way and give you the information you need without disabling the factory unit.  If yours is a manual transmission the probe is in the case and is screwed in.