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The principle working of this sensor involves the use of an electrical resistance that measures the temperature of the coolant. What is a Engine Coolant Temperature Sensor?Ĭoolant temperature sensors are also known as engine coolant temperature sensors or ECT sensors. If you feel that the engine performance is not what it has been before, it may be due to a faulty engine coolant temperature sensor. A bad air-fuel mixture can also cause the engine performance to drop drastically. The engine coolant temperature sensor can have a hard impact on the air-fuel mixture. The engine is very sensitive to wrong air-fuel mixtures at idle and this is a condition when you might notice that something is wrong with your engine coolant temperature sensor. This will cause the engine to vibrate or shake when the car is at low speed and lead to other power losses and strange behaviours. Poor Idlingĭue to a faulty ECT sensor, the fuel mixture will adjust. Some vehicles have a separate coolant temperature sensor for the fan, but many cars use the same sensor. If the fan receives a false signal, the fan might not turn on, causing the engine to overheat. This fan is electrically controlled and relies on the signal from the onboard computer.
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The cooling fan, which is behind the radiator grille, removes heat from the engine’s coolant. If the air-fuel mixture is faulty, you might find your car difficult or impossible to start. The starting moment of a car is very critical with the amount of fuel getting injected into the engine.
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RELATED: Black Smoke From Exhaust (Causes & How to Fix it) Hard Start Condition The excessive fuel will burn in the exhaust pipe and will produce thick black smoke. RELATED: Radiator Fan Is Not Working? (7 Causes & How to Fix) Black Smoke from the Exhaust Pipeĭue to an incorrect engine temperature signal, the ECU may enrich the fuel mixture to a point where the combustion process becomes difficult. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans not starting. In most cars, you have two separate temperature sensors for the fans, dashboard gauge, and engine management. Some cars use the engine coolant temperature sensor to control the electric cooling fans. This will cause the fuel economy to drop and decrease the engine’s performance.
![normal coolant temp normal coolant temp](https://thehuangs.com/wp-content/uploads/2015/09/New-Radiator.jpeg)
For example, a faulty sensor can send a signal indicating the engine is cold when it is not, and more fuel will heat the engine quickly. Poor MileageĪ faulty ECT sensor can send a false signal to the onboard computer, resulting in an incorrect air-fuel mixture. If you see a check engine light on your dashboard, it is time to check the trouble codes with an OBD2 scanner. If the computer detects any problem with the sensor’s circuit, it will illuminate the check engine light, indicating that the car needs an inspection. One of the first signs of all coolant temperature sensor symptoms you will probably notice is that the check engine light will show up on your dashboard. Here is a more detailed list of the common symptoms of a bad coolant temperature sensor. The main symptoms of a bad or failing coolant temperature sensor include: The most common symptom of a bad engine coolant temperature sensor is a check engine light on your car’s dashboard together with various engine performance issues. Mine wasnt here to compare- but it seemed very very close.Is there a fuse for the coolant temperature sensor? 8 Bad Engine Coolant Temperature Sensor symptoms His header tubes are also EXTREMELY close to the fans. The ZX5 exhaust man tubes were only at 300 degrees, but the shield was at 200 degrees.
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The only odd thing i noticed is that his headers are missing the heat shield (and the tubes themselves were at 500 degrees. He's replaced his temp sensor, and I checked to ensure his alt is making proper voltage to keep the fans spinning fast enough. I know they're different cars, but the cooling system should be basically the same. The ZX5 in comparison fans came on around 190 and car never got above that- stayed around 173-185. When they shut off, the water temps still around 205-208. The water temp gauge is all the way at the final tick mark before going into the red, oil temp gauge pegged long before that but bascially dismissed. Using a digitial thermometer gun, Colonels heats all the way up to 220-230 before both fans kick on simultaneously and only for about 10 seconds. I too have an SVT, and ZX5- but my SVT was not here today so had to use the ZX5 to compare side by side. Looked at ColonelSanders overheating focus today- its very wierd.