One of the most important cooling system components, the coolant temperature switch (sensor) plays a key role in alerting the ECU about the coolant temperature, changing the cooling fan operation and ultimately ensuring that the engine operates at the correct temperature. If the coolant temperature switch (sensor) is not working properly, it could send a false signal to the ECU, causing the engine to run too cool or overheat. At garagematch.ca, we provide you with a comprehensive list of garages that are equipped with the right tools and parts to replace the coolant temperature switch (sensor) on your vehicle, ensuring that the internal engine components are protected and the coolant level and pressure are maintained at optimal levels. Through our service request submission process, we connect you with qualified repair shops that can assist you with all your vehicle repair and maintenance needs, giving you total peace of mind.