Ensuring your coolant temperature sensor is functional feels like a no-brainer. Here are a few tell-tale signs that your ECT sensor might be bad. Your check engine light is on ...

Coolant Temperature Sensor. Modern-day cars come with two different systems in different car models. ... To test the electrical radiator fan of your car, take a wire from the car battery, unplug the ...

Strange Sounds and Temperature Changes. Another symptom of a faulty thermostat is bizarre sounds. You may hear rumbling, boiling, or knocking coming from the radiator. All these signs point to an ...