![]() ![]() ![]() When a problem occurs with engine heating or overheating, it may be due to one or multiple broken parts. The coolant system on today's cars, trucks, and SUV's is comprised of multiple components that work together to keep your engine running well. Part 1 of 3: Diagnosing a problem with the coolant temperature sensor If you discover that the sensor is failing, you'll have to replace this device by following the step-by-step instructions noted below. When the signal is sent to the ECM, the computer adjusts the vehicles ignition timing, fuel flow, and other factors that trim or enhance performance based on the coolant temperature.ĭue to the fact that engine temperature plays a vital role in the overall performance of any vehicle, having a properly functioning coolant temperature sensor is essential. The coolant temperature sensor (switch) utilizes electrical resistance to measure the coolant's temperature. When the sensor is functioning properly, it will tell your on board computer if the temperature is too high, alerting the driver that a problem exists by illuminating a warning light on the dashboard. The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM. One of the most important systems to monitor is the cooling system, which includes the radiator, water pump, radiator fan, coolant lines, and overflow tank. The more the input readings, the better the output decisions are.Today's engines monitor virtually every function to ensure your vehicle runs strongly and efficiently every day. One ECT sensor might not be as much reliable to operate the fan efficiently. This secondary ECT Sensor works together with the primary ECT Sensor to optimize the working of the car and give an accurate reading of the coolant to the car ECU before it is heated up, saving it from potential overheating problems.Īdding an ECT sensor is another way to get a more accurate reading. To keep the radiator of the engine working properly and to regulate the temperature of the engine constantly, locating these leakages is also very important. However, the one location where the secondary ECT Sensor is seldom placed in the radiator is the outlet of the radiator tank or pipe as it is the most common place for leakage of the engine coolant fluid. 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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