![]() ![]() The CHT temperature sensor is designed to measure the material temperature of the unit head. Anyway, the general rule is to open the hood and search for the front, center of motor (the upper radiator hose) in order to find a thermostat housing. Most often it is installed near the thermostat or radiator, in some cases the on-board computer uses the readings from both or one of the coolant sensors, depending on the vehicle brand and model.įor example, on 2008 the Ford F-150 its location is in front of the engine compartment. In order to repair it you should find the location first. Malfunctions are not quite obvious, as they coincide with those of some adjacent components. It is responsible for the correct functioning of the cooling system.Īlthough the device itself is quite simple and does not require expensive maintenance, it occasionally fails. The essence of its work is to give a signal to the motor control unit, which regulates the composition of the fuel mixture, as well as the speed of the crankshaft, as well as the angle of advance of the ignition. The element is a very important element responsible for the coolant temperature of the cooling system. Next, disconnect the wiring and turn the sensor with the key 19. All you have to do is drain the coolant down to a level just below the device position. ![]() You’ll also need a key for 19, an electric kettle and a container to drain the coolant. It is only important to have at hand a multimeter for measuring voltages (although it is not necessary to know this indicator for initial assessment) and resistances, as well as any device for measuring temperature. What’s very good is that modern ones make it possible to check almost at home. There’s black smoke coming out of the silencer tube.When the car starts up and the engine reaches its maximum temperature, it dies.The vehicle is now consuming more fuel than usual.If you have a mechanic, not a computer control system, here are the signals that you need to buy a new coolant temperature sensor: If your car has computer control, the problem can be detected byĭepending on the year of manufacture of the car, as well as its brand, many car enthusiasts note the increase in fuel consumption at the engine. Other systems in your car, the dashboard will report a malfunction with a light Of ways you can find out what you need to change the sensor. For the most correct operation of the alarm system you should use coolant recommended for a certain time of year, it is expensive, but prolongs the life of your car. These are the air temperature outside the vehicle and various drive characteristics. The resistance of the coolant sensor is very dependent on external factors. To make adjustments to the engine drives, i.e. Temperature and then (using data from other devices) apply the reference tables Vehicle’s computer or mechanical system will be able to calculate the engine Depending on the drop in voltage, the resistance on the alarm contacts will drop and the control unit will immediately fix it. The vehicle control unit sends an adjustable voltage ( 9-volt) directly to the coolant temperature sensor. As the temperature rises, they increase the resistance.Īlarm ones with negative coefficient are installed in almost all cars. Those with a positive temperature coefficient.Sensors with negative temperature coefficient, work on the principle that the internal resistance decreases as the temperature rises and vice versa.There are two types, depending on the change in resistance: ![]() As the sensor temperature is measured, its resistance level can vary. ![]()
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