My car started making a weird noise this morning. I’ve never had a problem with it before, so I didn’t think anything of it at first. But after driving around for a while, the noise was getting louder and more frequent, so I decided to take it in for inspection. Turns out my car’s crankshaft position sensor is going bad, and my mechanic was able to replace it without any further issues.
What is the crankshaft position sensor and why is it important?
The crankshaft position sensor is a device that monitors the rotational position of the crankshaft. This sensor helps to ensure that the engine is running at its optimal speed and in the correct gear. If the sensor detects a problem with the crank, it can alert the driver or mechanic to take corrective action.
How do you replace a crankshaft position sensor?
If you’re wondering how to replace a crankshaft position sensor on a car, here’s a basic guide:
1. Remove the cap and breather housing on the side of the engine.
2. Use a flathead screwdriver to loosen the three bolts that hold the sensor in place.
3. Remove the sensor and replace it with a new one. Tighten the bolts back into place.
4. Replace the cap and housing, and re-tighten the three bolts.
What are the consequences of not having a crankshaft position sensor?
If your car doesn’t have a crankshaft position sensor, it won’t be able to calculate the engine’s rotational speed and will eventually require a new engine. Without the sensor, your car’s computer will also be unable to determine when to fuel the engine, airbags will not work, and the emissions system won’t work correctly. If your car has an automatic transmission, it may also not shift properly.
How to test if a car has a crankshaft position sensor
If your car doesn’t start, there’s a good chance that it doesn’t have a crankshaft position sensor. This tiny device prevents the car from starting if the engine is not in the proper position.
To test if your car has a crankshaft position sensor, you’ll need to remove the air filter and top of the fuel tank. Look for a small black box about the size of a quarter near the front of the engine. If your car has one, you’ll need to replace it.
Conclusion
Sadly, the answer to this question is a little more complicated than that. A car’s crankshaft position sensor helps it determine the amount of fuel and air needed to stay running, and without it the engine will not start. However, many modern cars have systems that rely on other sensors in order to run (for example, ABS), so while your car may not start without the sensor, it should still be operable. If you are unable to start your car after checking all of its diagnostics, or if you notice any strange symptoms when the sensor is not present, please consult a mechanic or specialist for further assistance.