I know there is one on my 97 Cherokee on a radiator hose housing just in front of the cylinder head. (there are three coolant hoses going to the housing). I have been told there is another one on the radiator but i havent found it yet.
I was also looking for another sending unit, but the service manual for a 2000 Cherokee says that same ECT sensor on the thermostat housing also drives the coolant temp gauge, thru the pcm. I think earlier models had a separate coolant temperature sending unit on the cylinder head driver side rear.
There is a coolant temperature sensor and a temperature gauge sensor. the coolant sensor is located on driver side of the cylinder head. screws right into it, and the temperature gauge sensor is on the front side of the cylinder head right under the distributor. hope this helps
Defective temperature gauge or defective temperature sensor?
Your engine coolant temperature gauge has a sensor ( there is also a engine coolant temperature sensor that is used for the computer / PCM )
Where is the engin temperature gauge sensor located on the 1999 cadillac catera?
They don't have fuses. The speedometer is controlled by the speed sensor(s) and the temperature gauge is controlled by the coolant temperature sensor.
Bad gauge or defective coolant temperature sensor
A signal from the temperature sensor on the engine.
Check to make sure that the temperature sensor is good. A bad sensor is commonly the cause of the temperature gauge not working.
Defective temperature sensor or bad gauge
The fuel gauge in a 2001 Cherokee could be having different readings due to a bad fuel sensor. The sensor is mounted inside of the fuel tank.
A temperature gauge, that always read the maximum temperature, is usually not connected to the temperature sensor. The wire between the gauge and the sensor must be broken.
Temperature