Shop precise fit replacement Crankshaft Position Sensor to maintain and improve your vehicle's performance. Find the right parts for your make and model, backed by excellent customer service at A-Premium.
Just like many other sensors in your car, the crankshaft position sensor is there to help you drive safely and smoothly. A crankshaft position sensor is used to detect the speed and position of the crankshaft in the engine. A crankshaft is a rotating assembly in the engine that is connected to the connecting rods and the pistons. When the engine runs, the linear motion of the pistons rotates the crankshaft, creating the torque needed to move the car. The crankshaft sensor is usually located on the lower front end of the engine. It reads a toothed or notched wheel that is commonly found on the crankshaft or harmonic balancer and generates a signal to the powertrain control module (PCM). The PCM (also known as engine computer) uses the signals from the crankshaft position sensor to calculate the spark timing and fuel injector synchronization. The powertrain control module can also use the signal from the crankshaft position sensor to manage other functions like variable valve timing. PCM can also use this sensor to detect an engine misfire.
Usually, if your car realizes the crankshaft position sensor is broken, it will refuse to start before you get the problem solved. But just in case the engine computer didn’t make the right decision, we still recommend you not to drive your car if you know the crankshaft position sensor is broken. A broken crankshaft position sensor can cause the car to stall or have a hard start. Can you imagine your car doing this while you are driving on the highway? If we ignore a broken crankshaft position sensor, the damage it can cause might be a lot higher than the cost to replace it.
Why crankshaft position sensor go bad?
How to replace the crankshaft position sensor?
The best way to fix this problem is to go to a professional mechan ic. But if you are experienced in repairing jobs, it is feasible to change or replace a crankshaft position sensor by yourself.
First, you want to make sure your car battery is disconnected before all your operations. This is to protect you and your car as well. Then you can use the owner’s manual of your car to find out where the crankshaft position sensor is. Now you find the sensor, disconnect all the wire harnesses before you remove them. We recommend you take a photo of how the wires are attached. You might need that later. Next, you can remove the bolts and the sensor, and replace a new one. Make sure you replace a new O-ring. Then you do the same things as earlier but in the opposite order.
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