Your coolant temperature sensor informs the engine computer how hot your engine is so it can adjust the fuel mixture, cooling fan operation, and temperature readings. When it fails, your car may run rich, idle poorly, or overheat without warning.

In our video, you’ll see how this simple sensor protects your engine from costly damage.

At Saville’s Service Center, we diagnose cooling system and sensor issues using scan data and resistance tests. Our ASE-certified technicians verify sensor output, wiring integrity, and connector condition.

If the sensor is faulty, we replace it with a high-quality part, refill and bleed the cooling system, and confirm the fan and gauge readings operate correctly.

A bad coolant sensor can cause erratic temperature readings, poor heater performance, or an illuminated check engine light.

In some cases, it can even stop the radiator fans from running, leading to overheating and major engine repairs.

If you notice fluctuating temperatures, the cooling fan not cycling, or a dashboard warning light, it’s time for service.

Replacing this inexpensive sensor often prevents expensive problems and keeps your engine operating efficiently.

Stay in the safe temperature zone. Call (540) 338-5749 to schedule your Coolant Temperature Sensor Inspection and Replacement with Saville’s Service Center today.