If it fails, whether due to a burned-out motor, faulty relay, or a bad engine temperature sensor, the system loses its ability to cool effectively. Another likely culprit is the water pump.

Doing this twice a year or when you're changing your oil can prevent problems before they start or worsen and trip the check engine light. In addition to the oxygen sensor, coolant temperature ...

Your car’s engine temperature is vital to its operation ... The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally ...

See All 12 Photos Throttle position (TPS) (left) and coolant temp sensors help the ECM to determine the correct fuel curve under varying conditions of engine operation. Relatively expensive oxygen ...

The thermostat is a small valve that regulates the temperature in the engine by controlling coolant flow. If the engine is cold, the valve stays closed to let it warm up. However, as the engine warms ...