If your car won’t start, the first thing to check is the battery. But what if the battery is just fine and the car just won’t turn over? In that case, you might need to check the crankshaft sensor. This sensor detects when the engine has stopped spinning, which allows the car’s computer to determine if there’s something wrong with the engine or battery. But how do you know if the crankshaft sensor is malfunctioning?
In this article, we’ll look at five signs that suggest your crankshaft sensor might be causing your car to not start. After reading this article, you’ll be able to decide for sure if it’s time to take your car in for a inspection and/or repairs.
What is a Crankshaft Sensor?
A crankshaft sensor is a small device located on the crankshaft that monitors the position of the camshafts. When the sensor detects a problem, it sends a signal to the ECU, which in turn will disable the ignition and prevent the car from starting.
The most common reason for a crankshaft sensor to fail is when the camshafts stick due to wear or corrosion. If this happens, the sensor won’t be able to detect the position of the camshafts, and the car will not start.
In extreme cases, a crankshaft sensor can also cause an engine to stall or even seize up completely. So if you’re experiencing any problems with your car that you think might be related to a crankshaft sensor, be sure to bring it in for inspection.
How Does a Crankshaft Sensor Work?
A crankshaft sensor is a small device that sits on top of the crankshaft, just in front of the camshaft. It monitors the position of the crankshaft, which helps your car’s computer determine when to turn the engine over. If something goes wrong with the sensor, like it becomes damaged or clogged, your car may not start.
Why Is a Crankshaft Sensor Required on Some Vehicles?
The crankshaft sensor is a small device that sits on the crankcase of some vehicles. It monitors vibrations in the engine and sends this information to the vehicle’s computer. If there is an issue with the engine, such as a broken part, the sensor will signal the computer to prevent the car from starting.
What to do if Your Crankshaft Sensor fails
If your car won’t start, there’s a good chance your crankshaft sensor is the problem. This small sensor sends signals to the engine control unit (ECU) telling it when the engine is rotating properly. When the sensor fails, the ECU can’t get accurate readings, which can result in stalled or rough engine performance.
Here are some things you can do to diagnose and fix a crankshaft sensor failure:
– Inspect the sensor for signs of damage or wear
– Check the wiring connections and ensure they’re secure
– Test the ECU function by disconnecting the sensor and connecting it back again
– Replace the sensor if it’s faulty
How to replace a Crankshaft Sensor
If your car won’t start, there’s a good chance your crankshaft sensor is at fault. This small metal piece is located on the bottom of the engine and helps the computer determine when to start the engine.
Here’s a step-by-step guide on how to replace a crankshaft sensor on a car:
1) Remove the wheel and 20mm bolt that hold the strut to the chassis (2).
2) Next, remove the two 10mm bolts that hold down the engine cover.
3) Carefully pull the engine cover off of the engine. Be sure to disconnect both battery cables before doing so.
4) Locate and remove the crankshaft sensor (3).
5) Install new crankshaft sensor by reattaching bolt and washer from step 1, then screwing it in place. Be sure to reconnect both battery cables prior to doing so.
Conclusion
If your car has a crank shaft sensor, then you may want to check that it’s working properly. A crank shaft sensor helps the car determine when the engine is off of the ground and in park, which prevents the car from starting if it’s in someone’s driveway and they try to start their car. If the sensor isn’t working properly, then your car may start even when it’s not supposed to.