Will a malfunctioning Coolant Temperature Sensor cause a check engine light? In most modern cars and vehicles, this is present behind the right cylinder head that is located right underneath the air intake pipe. The coolant temperature sensor will be located directly behind the coolant pipe. Where is the Coolant Temperature Sensor located? What does the Coolant Temperature Sensor do?Ī coolant temperature sensor is used to measure the temperature of the coolant/antifreeze mix in the cooling system, giving an indication of how much heat the engine is giving off. 3 Year / 36,000 Mile Warranty on all Holstein Parts Coolant Temp Sensors.Holstein Parts Coolant Temp Sensors offer superior coverage for domestic and import applications.Holstein Parts uses only the highest quality materials and engineering for parts that are truly built to match or exceed the OE part.The computer will also scale back engine performance settings if it detects that the engine temperature is too high in order to protect the engine from possible damage due to overheating.īecause temperature plays such a vital role in engine performance calculations, a problem with a coolant temp sensor can quickly translate into engine performance issues. This signal is then sent to the electronic control unit (ECU) so that changes can be made to the engine’s timing and air/fuel mixture for optimal performance, as engines require more fuel when they are cold and less fuel when they are fully warmed up. Most coolant temperature sensors operate using electrical resistance to measure the temperature of the coolant. The Coolant Temperature Sensor, also known as the coolant temperature switch, is an engine management system sensor used to monitor the engine coolant’s temperature.
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