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 ...

Automotive experts say it’s normal for a radiator fan to keep running briefly after the engine is turned off, a process called after‑run cooling. Modern engine control units monitor post‑shutdown ...

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 ...