Sending unit

Ivan in Mich · Sep 26, 2012

I added an electrial temp. sending guage on one of my tractors and it wilkl not work. I think the guage may be bad but I need some info on the wiring. I have a pos terminal a ground terminal and a sending unit terminal. Is the wire on the sending unit to the guage suppose to have 12 volts in it when the key is on? I did some other work on the electrial system and I may have screwed something up. I knew better that to do more than one thing at a time but I had my head where the sun don't shine I guess. Thanks Ivan

BCnT · Sep 26, 2012

the sending unit has a thermistor inside...a resistor that changes resistance when heat is applied...that makes the gauge move so much at a time...if the sender and the gauge arent a matched set,they wont work rite.

Sending unit

Ivan in Mich

Member

BCnT

Well-known Member

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