![]() That’s to make them so simple that an idiot can understand that something is wrong. In the car world, the malfunction indicator lights are commonly known as idiot lights. Symptoms of a failing Engine Coolant Temperature Sensor It’s a small package with a large responsibility.Ī coolant temperature sensor usually have a long life, but they can get busted and need a replacement after enough wear and tear. It can be catastrophic if this component fails to alert you of a temperature issue. The success of the sensor directly affects the engine’s life. ![]() Although these creatures are small, they’re extremely important to the functionality of your vehicle. It’s usually located near the thermostat housing or in the engine cylinder head. It’s literally just a temperature sensor that monitors the coolant. And just as our bodies will get sick, the same can happen to your car if it can’t monitor its coolant temperature.Īnd that’s where the coolant temperature sensor comes into play. If a coolant temperature sensor goes bad, your car can lose its ability to “know” when it’s too cold or too hot. ![]() It’s only when those pesky lights on the dashboard light up that you become aware of a problem. Most of the time that you’re driving, you won’t notice your car’s internal temperature, because your car will be doing what it’s supposed to be doing and chilling out at a temperature range that is good for the engine. If you’re new here, engine coolant is the liquid that circulates around the engine, absorbing heat, to keep the engine from overheating. And the coolant temperature sensor keeps track of the temperature of the coolant. In a car, the controlling of the temperature happens internally. Because automakers have already figured it out for them. But hey, guess what? Our cars aren’t sentient beings, and they don’t need to worry about this. To be hot and take layers off, or to be cold and put layers on. What is an Engine Coolant Temperature Sensor?
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