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 ...

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 ...

Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...

To fully grasp the magnitude of what could happen when an engine's crankshaft and camshaft sensors go haywire, we need to summarize the roles of those sensors during the motor's operation. The ...