The good thing is that automotive experts put together intensive work and research to determine the most common symptoms of a bad coolant temp sensor. Thus, it is critical for you as a driver to understand any symptom that could provide you with some clues about whether the sensor is failing or is about to fail. You can also check with your mechanic, who is more familiar with your vehicle and can provide you with more details about the current condition of your sensor and whether you get out to replace it soon or not.Īlthough most older motive experts recommend replacing the coolant temp sensor once every 100,000 miles, it's not always the case, and this sensor might go bad before then. However, you get a check with your vehicle's Owner's manual because sometimes certain brands might have a different lifespan of certain components. Typically, you would need to change the coolant temp sensor once every 100,000 miles. How often should you replace the coolant temp sensor? Overtime reviews, the coolant temp sensor can go bad easily, and when this happens, you can get into a lot of issues, especially if you delayed fixing it for quite a good time. If the temperature is getting high and beyond a certain threshold, your vehicle will act immediately, allowing coolant to run around the engine and providing additional ways to protect the engine from excess temperature. It is responsible for communicating with your vehicle's computer and providing information about the current engine temperature. The coolant temp sensor works as a thermostat in your vehicle. Once you deal with any of these symptoms, you got to talk to your mechanic immediately and have him either fix it or replace it, depending on its condition. This article describes the 10 most common bad coolant temp sensor symptoms. Many drivers might underestimate the purpose of the coolant temp sensor in the vehicle, and learning about one or two things about this sensor helps you maintain it and prevent major catastrophic outcomes. When this happens, you'll see a significant change in the behavior of your vehicle, especially if this sensor is very critical, like the coolant temp sensor. It's not surprising to deal with a problem in one of those sensors. The sensors' purpose is to communicate between your vehicle's computer and the different components. When the system fails to gather this information it can lose its effectiveness at starting the engine.Your vehicle contains many sensors, and manufacturers add more of these sensors as technology advances. The ECU needs to know the coolant temperature and the outside air temperatures in order to figure out the correct cold-start air/fuel combination. If you hit the gas pedal but struggle to get your car going, it could mean a problem with the coolant sensor. Note- If there is an excess of black smoke coming from the exhaust pipe, it is advised to contact a mechanic immediately. Inaccurate readings sent from the coolant temperature sensor can cause the fuel management system to mix fuel improperly. When the ratio of air-fuel is not in proportion, particularly if the mixture becomes too fuel-rich, It will get exceedingly difficult to process the fuel completely inside the combustion chamber, leading to the burning of the leftovers in exhaust pipes. If you notice black smoke coming out of the exhaust pipe it could be due to a miscalculation of the air-fuel mix in the engine. This is another clear-cut sign of a bad sensor. A faulty sensor can send a permanent cold signal to the engine by not pumping enough fuel when needed, while it can also feed a permanent heating signal by not turning the radiator fans when the temperature climbs. If the coolant temperature sensor is not able to detect hot and cold conditions, it can cause the engine to get overheated. If your car uses only one all-purpose temperature sensor that fails to produce an accurate reading of the engine’s temperature, a bad engine coolant temperature sensor might be the cause of the cooling fans not starting. While most cars have two separate sensors for the electric fans, dashboard, and engine management system, some vehicles only have one coolant temperature sensor to manage the cooling fans. Electrical Cooling Fans Not StartingĪnother suggestive sign of a broken coolant temperature is the cooling fans for the engine not coming on. This cycle will cause the engine to deliver poor fuel economy and more importantly, will lose its efficiency in the long run.
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