What Is A Coolant Temperature Sensor?

In some cars, this device is an actual switch where it can activate the engine’s cooling fan at specific temperatures. This helps control the engine temperature, but in many modern vehicles, the process is automatically done for you with the sensor. The coolant temperature sensor reads the engine coolant temperature and signals the engine to control other functions of your vehicle, including ensuring your internal engine does not overheat.

Common Signs And Symptoms That You Need to Replace A Coolant Sensor or Switch

• Engine overheats
• Cooling fan stutters or does not work properly
• Coolant temperature is not steady
• Engine does not run smoothly
• Engine stalls or idles with popping or backfiring sounds
• Check Engine Light is lit

How Important Is This Service?

A faulty coolant sensor will create many issues with your vehicle due to overheating that it causes. Like the coolant reservoir, symptoms can be fatal to many parts of your internal engine and render your car unable to work properly. As there are a variety of symptoms that can arise from a faulty coolant sensor, it is hard to self-diagnose. One of our mechanics would be happy to come and inspect your burning hot engine for you.