![]() If the part indicates high temperature while the engine is cool, and low temperature when the engine is hot, then the part is faulty. The temperature value shown by the sensor must correspond to the engine temperature. How to detect coolant temperature sensor malfunction Here you can buy ignition plugs, stub axles, brake blocks, fenders, air filter, back lights, headlamps, oil filter, bearings and many other car parts at reasonable prices. There is a big variety of car parts in our Internet shop, you can find here many parts for your car. The easiest way to check its functionality is a test drive. Before this it is necessary to clean connections, especially if there is rust. It is necessary to disconnect wires, then to remove failed sensor and to place instead of it a new one. The substitution itself is not difficult and may be done rather quickly. The most difficult task for an inexperienced motorist is to find where exactly the sensor is situated. As a rule, heat sensor is screwed in cylinder head. In any case it is necessary to repair it immediately, because engine overheating may have grave consequences. If there are no figures at all, it is possible that indicator failed or a wire is disconnected. If temperature indicator shows meaningless figures, it’s most likely that the coolant temperature sensor failed. Warmed-up engine consumes less fuel then the cold one. In addition, you can control fuel quantity using engine temperature sensor. It is very important to prevent overheating. Due to coolant temperature sensor driver always knows what is the temperature of the engine. Resistance can be easily measured and on the basis of it you can determine and display temperature. As a rule, sensor is a thermistor – an electronic component resistance of which reduces when temperature rises. Coolant temperature sensor or engine temperature sensor serves to take engine’s temperature. ![]()
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