It is common for there to be three temperature sensors, one for air, one for the EFI computer and one for the gauge, so yes the sensor can fail and the gauge will still work because it is a different sensor.
The gauge temperature sensor is on the driver side rear of the cylinder head.
Possible bad sensor, it is on the rear of the head. On the driver side.
Chances are a defective sensor
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.
The reason for the failure could be a failure in the connection or the gauge itself. Alternatively, the temperature sensor could have failed.
It goes into the top of bell housing.
Loose connector, wire grounding out, bad sensor.
You have a bad temperature sensor probably over the thermostat. It needs to be replaced. The computer thinks your car has overheated when it has not. The temperature sensor that goes to your computer is different from the one that goes to the gage on your dashboard.
Your 1992 Jeep Wrangler faulty gas level sensor will cause the gas gauge to not function properly. The gas level sending unit may have a bad ground wire.
It will bolt up, but the manifolds, flywheel, wiring are different. Also the 1997 head does not have a hole in the rear for the temperature gauge sensor.
It will bolt in, but the intake on the 1996 is different and the cylinder head on the 1996 does not have the temp sensor for the gauge in the same location.
Jeep does not use a mass airflow sensor on the 4.0L