SensorThe CrankshaftIt is part of the electronic injection system in the car, which measures the speed of the engine's rotation. Your car's crank sensor consists of a set of electrical wires and magnets, and it sends signals to the electronic control unit in the car.
What is it and what is its function?
Car engines are considered to be essential components of your vehicle, but the engine cannot function properly without a crankshaft sensor.
The crank sensor of your car is one of the sensors found in the engine, which helps to monitor the movement and rotation of the engine. The car's crank sensor is installed in the engine body and is connected to the electronic control unit of the car.
In general, the car's crank sensor works to measure the engine's rotation speed and directs the related information to the car's electronic control unit.
Types of Crankshaft Sensor
There are two main types of cars:
The magnetic sensor
The magnetic sensor is used to measure the rotation speed of the crankshaft, and consists of two magnetic forces that move together constantly. The sensor measures the difference in electrical voltage that occurs when the two magnetic forces are moved.
The magnetic sensor is characterized by its ability to withstand dirt and moisture well, and can be used in places exposed to harsh weather conditions.
Optical Sensor
It depends on measuring the light signal produced by the light source and passing through small slits in the rotating ring. When the crankshaft moves, the light is stopped and moved through these slits, the light signal is converted into an electrical signal by the sensor.
This sensor is known for its simplicity and low cost, but it is easily affected by dust and dirt. It is mainly used in cars that operate in good and non-humid weather conditions.
The Importance of the Crankshaft Sensor in Your Car
It has great importance in your car, as it helps ensure the engine is working properly and soundly. This is done by measuring the engine's rotation speed and sending this information to the car's electronic control unit.
The amount of fuel that should be introduced to the engine is determined according to the load that the engine is currently bearing. If the sensor is damaged, it can cause problems.
Symptoms of Crankshaft Sensor Failure
When the sensor gets damaged, it can lead to several symptoms appearing in your car, among these symptoms:
Difficulty in starting the engine.
If it wasCrankshaft SensorIf damaged, you may find it difficult to start the engine, and the engine might need a few attempts before it starts to function correctly.
2- Delay in starting the engine
The crank sensor of your car may suffer partial damage, which can lead to a delay in starting the engine, or irregular startup.
3- Unusual vibrations
When the crank sensor of your car is damaged, it can cause abnormal vibrations in your car, especially when driving on rough roads.
4- Increased fuel consumption
If the crank sensor of your car is damaged, it can lead to increased fuel consumption, as it makes it difficult for the car's electronic control unit to determine the amount of fuel that should be injected into the engine.
5- Irregular engine rotation
When the crank sensor of your car gets damaged, it can lead to irregular engine rotation, and the engine may emit abnormal sounds.
6- The engine broke down.
If the crank sensor in your car is not repaired in a timely manner, it can lead to a complete engine breakdown, which may require a full repair.
7- Change in sound and performance
Damage to your car's crank sensor can affect the engine's sound and performance, where unusual noises may be heard or changes in engine performance may occur.
Also read:The importance of the crankshaft and how it works.
How to Check the Crank Sensor
It is considered an important part in the car's ignition system, where it sends a signal to the ignition control unit to determine the ignition timing.
Since this sensor relies on accurate readings of the crankshaft's rotational speed, any malfunction in it can lead to car problems such as ignition failure or reduced performance.
Here we explore how to check the crank sensor of your car:
Inspect the cables and connections.
Ensure that the cables and connections linking the sensor to the ignition control unit are intact and free from damage. If there is any damage to these cables, it could be the main reason the sensor is not functioning correctly.
2- Inspect the sensor with a multimeter.
A multimeter can be used to check the sensor and ensure that it is working correctly. Connect the multimeter to the sensor and make sure to read the resistance value that the multimeter displays. This value should match the value specified in your car's maintenance manual.
3- Inspect the sensor with the car diagnostic device.
A car diagnostic tool can be used to determine whether the sensor is working properly or not. Connect the diagnostic tool to the car and follow the instructions provided in the user manual.
In short, the crank sensor should be checked regularly during routine car maintenance to avoid any problems that affect its performance. If you feel any performance issues, it's best to turn to a specialized mechanic to diagnose the problem and make the necessary repairs.
It should be considered that sometimes, the accumulation of dust and dirt on the sensor can lead to a failure to ignite or a deterioration in performance. Therefore, care should be taken to regularly clean the sensor and avoid driving in rugged areas where the car is exposed to a lot of dust and dirt.
Finally, it is important to take into account that the crank sensor is a crucial part of the ignition system and can significantly affect the performance of the car. Therefore, it is critical to pay attention to it and regularly check it to ensure that the car operates with high efficiency and maintains its optimal performance.
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