How Long Does a Crankshaft Position Sensor Last?

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The crankshaft position sensor monitors the rotational speed and position of the crankshaft in the engine. It reports this information to the engine management system to control the ignition system timing. The crankshaft position sensor is used with the camshaft position sensor to monitor the valves and pistons in the engine, which are an important part of the engine’s variable valve timing. Furthermore, the crankshaft position sensor synchronizes the engine once it starts, letting the management system know when to send the fuel.

The crankshaft position sensor needs to be in great condition in order to give an accurate reading. Therefore, if something is off with the sensor, the engine may exhibit different problems. Since the crankshaft position sensor is used every time the vehicle is running, there may be damage to the wheel and pin, magnetic problems, and wiring problems that can occur throughout the vehicle’s lifetime.

Wheel and pin damage happens when any of the wheel’s teeth are broken, worn, or snapped off. When this happens, the pattern of pulses that the sensor measures will be off and the sensor will become confused. The magnet part of the crankshaft position sensor can attract metal shavings that are in the engine compartment. This can throw off the sensor’s measurements as well. In addition, they can bridge between the wheel and the sensor, meaning they become closer together which also provides the wrong measurement. Wiring problems can happen anytime electricity is involved, and that is true with the crankshaft position sensor as well. The circuitry that connects the sensor to the computer’s control module can burn out. The sensor may not be able to read a signal at all if this happens.

Since the crankshaft position sensor can wear or break over time, it will need to be replaced. Watch for the following signs that indicate this is becoming an issue:

  • Poor fuel economy due to the engine using more gas
  • Engine misfiring because of the combustion being disrupted
  • Acceleration problems because the vehicle’s computer cannot make the proper adjustments
  • Check Engine Light
  • Difficult starting because the engine is not getting the proper amount of fuel
  • Stalling at low speeds because the fuel injectors are not providing enough fuel

If you are experiencing any of the symptoms above, have a mechanic take a look at your car. They make is simple to have your crankshaft position sensor replaced because their mobile mechanics will come to your home or office to fix your car.


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Recent Crankshaft Position Sensor Replacement reviews

Excellent Rating


YourMechanic Crankshaft Position Sensor Replacement Service

Average Rating

4.8/5

Number of Reviews

695

Rating Summary
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Diego

19 years of experience
435 reviews
Diego
19 years of experience
Chevrolet Astro - Crankshaft Position Sensor - Tempe, Arizona
Very polite, knowledgeable and efficient. Keeps you informed and asks before doing work that wasn’t quoted so no surprises.
Jeep Compass - Crankshaft Position Sensor - Phoenix, Arizona
I have had nothing but b ad car experiances when it comes to servicing my cars. This was my 3rd attempt to get my Crankshat sensor replaced. Diego was late arriving but he communicated his whereabouts and his ETA to my satisfaction. He was prodessional in his demeanor and fast and efficient in getting the job done! Not only will I continue to use him, I will refer him to friends and family. Great job Diego. Yiur #1 Fan, -Sabrina

Raymond

35 years of experience
98 reviews
Raymond
35 years of experience
Chrysler 300 - Crankshaft Position Sensor - Las Vegas, Nevada
Ray did a great job fixing my car, he was even early and I couldn't thank him enough. I called Angel mobile mechanic before Mymechanic and the he never showed up or even called to tell me he wasn't coming. His loss since it was $50 cheaper than what Angel mobile mechanic was going to charge. I highly recommend Raymond and Mymechanic, I will call them any time my car has a problem.

Jeremy

18 years of experience
305 reviews
Jeremy
18 years of experience
Mercedes-Benz E320 - Crankshaft Position Sensor - West Palm Beach, Florida
Total satisfied with Jeremy's work. I would like for him to work on my other car. I'm waiting for him to give me the cuote, to find out if it's a reasanable one. Thank you so much.

Shawn

10 years of experience
31 reviews
Shawn
10 years of experience
Nissan Pathfinder - Crankshaft Position Sensor - Lancaster, Pennsylvania
Awesome. Shawn fixed the problem for me so my car is working order. Found some things that need done before inspection and I will be calling him back to replace them. Over very pleased with friendliness and knowledge.

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