3 Year / 36,000 Mile Warranty on all Holstein Parts Coolant Temp Sensors.Holstein Parts Coolant Temp Sensors offer superior coverage for domestic and import applications.Holstein Parts uses only the highest quality materials and engineering for parts that are truly built to match or exceed the OE part.The computer will also scale back engine performance settings if it detects that the engine temperature is too high in order to protect the engine from possible damage due to overheating.īecause temperature plays such a vital role in engine performance calculations, a problem with a coolant temp sensor can quickly translate into engine performance issues. This signal is then sent to the electronic control unit (ECU) so that changes can be made to the engine’s timing and air/fuel mixture for optimal performance, as engines require more fuel when they are cold and less fuel when they are fully warmed up. Most coolant temperature sensors operate using electrical resistance to measure the temperature of the coolant. Hint – if you can’t find a temperature sensor in your car – this article should help.The Coolant Temperature Sensor, also known as the coolant temperature switch, is an engine management system sensor used to monitor the engine coolant’s temperature. This aspect of preventative maintenance can certainly save you some headaches and hassle in the long run. You can always have your CTS replaced by an auto care professional. Even general wear and tear can cause the sensor to erode over time. If the engine sustains any kind of trauma or damage, sensor replacement is always recommended because you don’t want to risk running the vehicle with a faulty one. The sensor will eventually need to be replaced altogether after time. If you see the Check Engine sign light up, take your car in for professional servicing right away. Generally speaking, if your sensor is not working, it will send a signal to the computer and your Check Engine light will be illuminated. While this visual check can be helpful, it won’t help you diagnose every possible problem as some sensor malfunctions can present without visual evidence. If you know where the engine sensor is and what it looks like, you can conduct a visual inspection to see if it has developed any cracks or fissures. This can cause a range of problems, including overheating the engine. Additionally, it may signal the need for a richer fuel mixture or open the exhaust gas recirculation.Īs with any other component in your car, the sensor can go bad over time and fall into disrepair. From there, your vehicle’s computer will use this temperature information to either continue operating or adjust certain engine functions, always working to keep the engine temperature at an ideal level.Īs the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on. The temperature is then sent to the on-board control system. The sensor works by measuring the temperature that’s being given off by the thermostat and/or the coolant itself. The tip of the CTS is probably located right next to the engine coolant. On most vehicles, the coolant temperature sensor (CTS) can be found somewhere near the engine thermostat, which allows it to function optimally. But how does this car temperature sensor really work-and what’s its purpose? The sensor keeps tabs on the operating temperature and alerts the on-car computer when there’s a potential problem. You may not know-but hopefully, your vehicle coolant temperature sensor does. How hot does your vehicle’s engine get during an average drive?
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