Virtually every modern car on the road is equipped with bells, whistles, and sensors designed to let you know when even the slightest thing is wrong with your vehicle. While any driver can appreciate ...

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 ...

Coolant level sensors may seem small, but they guard against big failures. In this Fun with Fundamentals entry, we break down how these devices keep engines—and engineers—from losing their cool. On a ...