![]() The location of this sensor is not very common and is found in different locations in different cars. The other Engine Coolant Temperature Sensor is known as the secondary ECT sensor or the ECT sensor 2. This cylinder head closes the top opening of the cylinders and packs it into a casing forming a combustion chamber for the fuel and air to mix and react. ![]() In an internal combustion car’s engine, the cylinder head is placed on the top of the car’s cylinders above the cylinder block. This sensor is located on the coolant passage next to or in the thermostat housing of the cylinder block or cylinder head. The main Engine Coolant Temperature Sensor is known as the primary ECT sensor or ECT sensor 1. One sensor is located near the thermostat valve housing, and the second one is located in the radiator outlet tank or pipe. The pair sensors can be installed in different places, depending on the make, model, and year. Most of the cars that are being used nowadays contain pairs of Engine Coolant Temperature (ECT) Sensors for the purpose of sending accurate and precise information to the car ECU. These sensors are directly connected to the car ECU for measuring the temperature of the engine coolant. This sensor consists of wires ranging from 1 to 4. Related Post: How To Test Coolant Temp Sensor Wiring With Multimeter Car Thermostat Housing Containing ECT Sensorīut modern cars, have coolant temperature sensors placed next to the thermostat housing, which is directly connected to the car ECU. ![]() When the temperature exceeds a certain threshold, the temperature sensor was used to make the connection of the earth to the radiator fan’s relay, and the radiator fan had to turn ON. In the old model cars, there was an engine coolant temperature sensor (thermal switch), mounted on the radiator outlet tank or pipe, which was used to turn on the radiator fan. Where Is The Engine Coolant Temperature (ECT) Sensor Located Single Wire Coolant Temperature Sensor ![]()
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