![]() ![]() If the coolant temperature sensor is not installed properly, it can cause it to malfunction or fail. Overheating can cause the sensor to fail or malfunction, leading to inaccurate temperature readings.įaulty wiring, a blown a fuse, or a malfunctioning ECM can cause the coolant temperature sensor to fail or malfunction. ![]() If the engine overheats, it can cause damage to the coolant temperature sensor. Contaminants such as dirt, debris, or rust can damage the sensor. ![]() If the coolant in your engine becomes contaminated, it can cause the coolant temperature sensor to malfunction or fail. The wiring that connects the coolant temperature sensor to the engine control module (ECM) can become damaged or corroded, which can cause inaccurate readings or a complete failure of the sensor. Corrosion can damage the sensor and cause it to malfunction. The coolant temperature sensor is exposed to the coolant in the engine, which can cause corrosion over time. Over time, the coolant temperature sensor can deteriorate due to normal wear and tear, which can cause it to malfunction or fail. There are several reasons why a coolant temperature sensor may fail or become faulty, including: Reasons Behind a Faulty Coolant Temp Sensor For the best products and services, CONTACT US TODAY. A bad coolant temperature sensor can cause a range of problems and should be addressed promptly to avoid further damage to your vehicle’s engine.Ĭ.T.A- You should instantly replace your coolant temperature sensor if that goes bad. If you notice any of these symptoms, it’s important to have your vehicle inspected by a qualified mechanic to diagnose and address the issue. If the coolant temperature sensor sends inaccurate readings to the ECM, it can also affect the performance of your vehicle’s heater, as it relies on the engine’s coolant to provide heat. If the engine is running too rich or too lean due to a faulty coolant temperature sensor, it can result in increased emissions, which can cause your vehicle to fail an emissions test. If the coolant temperature sensor sends inaccurate readings to the ECM, it can result in poor fuel economy, as the engine may be running too rich or too lean.Ī bad coolant temperature sensor can also cause a rough idle, as the engine may run too cold or hot, causing it to struggle to maintain a steady idle speed.Ī faulty coolant temperature sensor can cause the engine to stall or shut down unexpectedly, as the ECM may receive inaccurate temperature readings and adjust the engine’s performance accordingly.Ī malfunctioning coolant temperature sensor can trigger the check engine light to come on, as the ECM may detect an issue with the sensor’s readings.Ī bad coolant temperature sensor can cause decreased performance, as the ECM may adjust the engine’s performance based on inaccurate temperature readings. It can cause a range of issues, from reduced performance to engine damage, if left untreated. If your car engine is overheating, it could be due to a faulty coolant temperature sensor. A malfunctioning coolant temperature sensor can cause a range of problems, so it’s important to be aware of the following nine symptoms of a bad coolant temp sensor: However, just to help regulate the engine’s operating temperature. It monitors the temperature of the engine coolant and sends that information to the engine control module (ECM). It plays a crucial role in the proper functioning of your vehicle’s engine. The coolant temperature sensor is also known as the engine coolant temperature (ECT) sensor. ![]()
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