What controls the temp gauge in a car?
What controls the temp gauge in a car? Your temperature gauge uses a sensor that is exposed to the coolant flow. This sensor is usually located near or in the thermostat housing and sends an electrical signal that corresponds to the temperature reading. How do I know If my temperature gauge is working? How do I know if my temperature gauge is working?Unplug the temperature gauge from the sending unit.Turn the ignition key to the "On" position.Ground the temperature gauge wire to the engine.Check the temperature gauge inside the car.Turn the ignition key to the "Off" position.Check the fuses inside...