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 ...

If the coolant is too hot, your engine is far more vulnerable to a catastrophic failure. Just as important, ECT sensors can also be used by the engine control module to gauge a vehicle's performance ...

Something I've realized over the past few years poking with a large variety of cars: Nobody has low coolant or low oil sensors! I drove an '88 Mazda RX-7 with both, and they were quite valuable! The ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. The coolant light glowing blue ...

As with the other fluids in your car, engine coolant plays a big role in how your car is running and should be monitored consistently. The frequency of checks will depend on the type of vehicle as ...

General Motors has issued a Technical Service Bulletin to address an issue with the engine coolant pipe on certain Chevy Blazer, GMC Acadia, Cadillac XT4 and Cadillac XT5 crossover models. According ...