passenger wing mirror
You can pressure test with a gauge using sensor location
If you refer to the outside temp sensor, it is located inside on right side rear view mirror
Try heater hoses.
I'm guessing you mean when the tank is full. It is probably the fuel sensor.
On the Intake Manifold, most likely at one one the ends near the thermostat.
the sensor for the gauge should be by the thermostat housing,the sensor for the ecm should be on the right rear of engine above exhaust manifold screwed into head
Under intake plenum... has a dry coolant temp. Sensor in the head on the left bank... calculates ambient, exhaust and head temp in order to determine coolant temp
Usually the fuel level sensor in the fuel pump. ANSWER A 1993 Ford Explorer also has a 15 amp fuse in location # 17 for the fuel gauge
Sounds like a bad gauge sensor or a bad tank sensor (or both).
I don't think Chevy changed the location of the knock sensor. On my 1994 4.3 its on the left hand (drivers side). There are 2 sensors there, one of them is the temp gauge sending unit and the other is the knock sensor.
Your engine coolant temperature gauge has a sensor ( there is also a engine coolant temperature sensor that is used for the computer / PCM )
Defective temperature sensor or bad gauge