Cooling Sensors

Coolant Temperature Sensors can be located throughout a vehicle’s cooling system to monitor the temperature of the engine block and cylinder heads. Engine coolant runs through a series of passages in the engine to extract the excess heat and cool down the engine.

Cooling system-related sensors are typically located near the cooling system thermostat.

If your vehicle is experiencing the one or more of the following, it may be time for a new coolant temperature sensor:

• Rough engine idle
• Hard starting engine or misfiring engine
• Decreased fuel economy
• Check engine light remains on