The P0118 code means that the engine control module (ECM) has detected a voltage signal that’s too high from the engine coolant temperature (ECT) sensor (below). In practical terms, the ECM believes ...

So your car’s temperature gauge is acting up, or not working at all, and you want to fix it? Good for you. Your car’s engine temperature is vital to its operation, and a properly-operating gauge is a ...

Engineers design modern engines to run in a narrow temperature window where power, efficiency, and emissions all line up. The thermostat sits at the center of that control, opening and closing a ...