The coolant temperature sensor, or CTS, is designed to monitor the engine temperature and the rate at which it is cooling down. What to Do in Case of Coolant Temperature Sensor Failure? If this sensor fails or becomes damaged, then your car may not run or drive as well as it used to. The only thing you have to make sure of is that you get a high quality one, since it’s such a vital part of your engine system. Now, the coolant temperature sensor is not an expensive component and can be easily replaced by anyone who has basic automotive knowledge. For example, if you notice that your engine is overheating but the cooling system appears to be working properly, it could be that the coolant temperature sensor has failed and needs to be replaced. However, if this component fails or gets damaged, your car may suffer from a host of different symptoms that can be very difficult and even confusing to diagnose if you’re not familiar with what this component does. Its purpose is to sense the coolant temperature and relay this information to the powertrain control module (PCM) so that it can properly adjust the spark timing, fuel delivery, transmission shift schedule, as well as other parameters based on the engine’s operating conditions. It is usually screwed into the cylinder head or intake manifold near the outlet from the thermostat housing. This component is called the coolant temperature sensor, or sometimes a coolant temperature switch. Now you know that this is an engine component required for the correct and efficient operation of your Chevy 5.3 Vortec Engine. In many vehicles it’s inside the thermostat housing (which also houses the water pump) where it has access to engine coolant and air from outside the engine compartment.Ĭhevy 5.3 Coolant Temperature Sensor Location The sensor is typically a two wire sensor that does not require much power and can get very hot or very cold to operate properly. ![]() However, as mentioned, since most vehicles have more than one engine temperature sensor and they don’t all send information to the computer, drivers don’t often realize when one goes bad. The coolant temperature sensor is typically located on or near the engine in an accessible place, making it easy to access for replacement if needed. This sensor often gets overlooked because it’s rarely the source of issues and often does not directly affect or even impact the function of a vehicle. This information is used in a variety of functions, from emissions control to ignition timing adjustments, and also for determining when to turn on fans or lights. ![]() ![]() The function of the coolant temperature sensor is to inform the vehicle computer (PCM or ECU) about the engine temperature. The Function of Coolant Temperature Sensor One of the most important things to watch over is engine coolant temperature sensor. However, you should care about your car so it keeps run smoothly. It is a good choice for those who want a powerful engine without sacrificing fuel efficiency.Ĭhevy 5.3 Vortec Engine is one of the most reliable engines out their and is often sought out by car owners. ![]() The 5.3L Vortec engine is a reliable powertrain option that delivers strong performance and good fuel economy. The 5.3L Vortec engine was first introduced in the 2003 model year and has been used in a variety of GM vehicles since then, including the Chevrolet Silverado, Suburban and Tahoe the GMC Sierra, Yukon and Yukon XL and the Cadillac Escalade. The 5.3L Vortec engine is equipped with GM’s Active Fuel Management (AFM) and Variable Valve Timing (VVT) technologies, which work together to conserve fuel and improve performance. It also has forged steel connecting rods, pistons with floating wrist pins and nodular iron crankshafts. It has a cast iron block and aluminum heads with overhead valves and pushrod-operated rocker arms. The Chevrolet 5.3L Vortec engine is a reliable, powerful and fuel efficient powertrain option for many GM vehicles.
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