If you’re like most drivers, you probably don’t want to have to fumble around for your keys every time you want to take your car out for a spin. That’s where a car’s knock sensor comes in – it’s designed to sensewhen someone or something is banging on the car’s door, and then activate the car’s engine so that it can be opened from the inside. But what if your knock sensor isn’t working? Like most things in life, there are sometimes things that can go wrong with a knock sensor – and if that happens, you might find yourself stranded on the side of the road. In this article, we’ll take a look at what causes knock sensors to fail, and how you can fix them if they start acting up.
What is a Knock Sensor?
Knock sensors are designed to determine when a knock is heard and relay the information to the car’s computer. If the sensor detects a knock, it will stop the car’s engine. This can help prevent theft or vandalism.
How Does a Knock Sensor Work?
Knock sensors are often found in cars made in the 2000s and early 2010s. They detect when somebody knocks on the door or trunk of your car. This can cause the car’s engine to not start.
There are a few different types of knock sensors, but all of them work in the same way. When the sensor detects a knock, it sends a signal to the car’s computer. The computer then looks for a pattern in this signal. If it finds a pattern, it knows that there was someone knocking on the car, and it will stop the engine.
When Should You Replace Your Knock Sensor?
Knock sensors are one of the most common components that need to be replaced on cars. If your car doesn’t start, it’s likely that your knock sensor is the issue. Here’s when you should replace it:
If your car has an automatic transmission, you should replace your knock sensor every time you have a tune-up.
If your car has a manual transmission, you should replace your knock sensor every time you have a fluid change.
Conclusion
Knock sensors are designed to prevent unauthorized use of your car, but they can also have the side effect of making it difficult or impossible to start your vehicle. If you’re having trouble getting your car started after it’s been knocked over, be sure to check the fuses and the knock sensor first. If neither of those solutions solves the problem, there might be more serious issues that need to be addressed.