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How Long Does It Take To Replace A Crankshaft Sensor

The crankshaft sensor is one of the most important parts of your car’s engine. It helps to ensure that the engine is running smoothly and efficiently. However, like all parts of your car, the crankshaft sensor will eventually need to be replaced. In this blog post, we’ll take a look at how long it takes to replace a crankshaft sensor and what you can do to prolong its life.

What is a crankshaft sensor?

A crankshaft sensor is a small electromagnetic sensor that is attached to the crankshaft of an engine. The sensor monitors the position and rotational speed of the crankshaft and sends data to the engine control unit (ECU). This information is used by the ECU to control ignition timing and fuel injection timing.

If the crankshaft sensor is not working properly, the engine will not run correctly. Symptoms of a failing crankshaft sensor include:

– Engine misfires
– Engine stalls
– Check Engine Light is illuminated

Why do you need to replace it?

If your crankshaft sensor fails, it will no longer be able to send the correct signal to your engine control unit. This can cause your engine to run erratically or not start at all. In some cases, a failing crankshaft sensor can also cause your check engine light to come on.

How long does the replacement process take?

The crankshaft sensor replacement process can take anywhere from 30 minutes to 2 hours, depending on the make and model of your vehicle. If you’re replacing the sensor yourself, you’ll need to factor in the time it takes to remove the old sensor and install the new one. Most mechanics will charge an hourly rate for labor, so be sure to ask how long the repair is expected to take before getting started.

What are the consequences of not replacing it?

If a crankshaft sensor fails, it will usually trigger the check engine light on the dashboard. The car will also runroughly and may stall. In some cases, it may be hard to start the car. If the problem is not fixed, it can cause serious damage to the engine.

How much does it cost to replace a crankshaft sensor?

The cost of replacing a crankshaft sensor will vary depending on the make and model of your vehicle. However, you can expect to pay anywhere from $100 to $400 for the parts and labor. If you have a extended warranty, it is likely that the cost will be covered.


Replacing a crankshaft sensor can be a time-consuming process, but it’s important to make sure that it’s done correctly in order to avoid any problems with your car. If you’re unsure of how to replace the sensor, we recommend taking your car to a mechanic or auto shop so that they can do it for you. Otherwise, follow the steps outlined in this article and take your time – replacing a crankshaft sensor is not something that should be rushed!