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How to Start a Car With a Bad Crankshaft Sensor (Step-by-Step)

Updated: Jan 9

An important component that is essential for starting a vehicle is the crankshaft position sensor (CKP).

This sensor plays a vital role in the proper functioning of the engine, as it helps to monitor the position and rotational speed of the crankshaft.

If the crankshaft sensor is not functioning properly, it can cause a range of issues that may make it difficult or impossible to start the car. In this article, we will explore how to start a car with a bad crankshaft sensor.


Table of Contents:


What Is a Crankshaft Position Sensor?

A crankshaft position sensor, also known as a crank sensor, is a device that is used to monitor the position and speed of the crankshaft.

The crankshaft is a central component of an engine, as it converts the linear motion of the pistons into rotational motion, which is then used to power the vehicle.

The crankshaft position sensor is typically located near the crankshaft, and it works by sending electrical signals to the engine control unit (ECU) when the crankshaft is turning.

The engine control unit (ECU) uses this data to regulate the timing of the ignition system, fuel injection, and other engine functions. The crankshaft position sensor, when combined with the camshaft position sensor, enables the engine to be completely in sync and run smoothly.