Also referred to as an ECT sensor, a coolant temperature sensor is one of a vehicle's more vital safeguards against overheating as it directly gauges the temp of an automobile's coolant.

Hello Juliet, a car has three temperature sensors. The engine coolant temperature (ECT) sensor monitors and relays engine coolant temperature information. The ECT is located on the engine block or ...

A faulty coolant temperature sensor can damage your engine. Here's how to tell if yours has gone bad, plus how to fix it.