It seems like just about every car out there has at least one crankcase position sensor – these sensors are used to help determine the engine’s optimal gear ratio, and can be accessed by removing the oil filter. But what if the sensor becomes attuned to a certain position in the crankcase and doesn’t work correctly when that same position is reached during startup? That could be the cause of your car not starting, so it’s important to know how to test and fix crankshaft position sensors.
What is a Crankshaft Position Sensor?
A Crankshaft Position Sensor is a sensor used to determine the position of the crankshaft on an engine. If the sensor detects that the crankshaft is not located where it should be, this can cause problems with the car’s ability to start.
How Does a Crankshaft Position Sensor Work?
A car’s crankshaft position sensor is a small electronic device that helps the engine to start. It is located on the front of the engine block, just in front of the flywheel. When the car is started, the crankshaft position sensor sends a signal to the ignition switch telling it to turn on.
What are the Symptoms of a Crankshaft Position Sensor Failure?
If your car won’t start, there’s a good chance that the crankshaft position sensor is at fault. This sensor detects when the engine is rotating, and uses that information to determine the engine’s rpm. If the sensor is not working properly, the engine may not be able to calculate its rpm correctly and consequently won’t start. Some symptoms of a crankshaft position sensor failure include:
-Lack of power (or no power) when you turn the key in the ignition
-Randomly jumping from high to low rpm while driving
-Engine not starting at all
If you’re experiencing any of these symptoms, it may be time to have your crankshaft position sensor replaced. Depending on the age and make of your car, this may be a relatively easy repair job.
How Can You Fix a Crankshaft Position Sensor Failure?
If your car won’t start, there’s a good chance the crankshaft position sensor is causing the problem. This sensor measures the angle of the crank to determine when to start the engine. If it becomes faulty, the sensor may not accurately reflect the position of the crank, resulting in a failed starting attempt.
There are a few things you can do to troubleshoot your crankshaft position sensor issue. If the car still won’t start, you’ll need to replace the sensor. However, if you’re able to get the car started but it’s failing again soon afterwards, you may be able to fix the problem with a repair kit.