How Long Does a Speed Timing Sensor Last?

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Your car’s engine needs a considerable number of sensors in order to operate correctly. Oxygen sensors, the vehicle speed sensor, the mass airflow sensor – these are just a few of them. Your engine also needs a speed timing sensor (note that some engines have more than one speed timing sensor). You might be more familiar with this as the crankshaft sensor.

Basically, the speed timing sensor is responsible for monitoring the teeth on the crankshaft as it spins. The spin of the crankshaft actually creates a magnetic field around the sensor (which is a magnetic coil). As the teeth pass, they create minute fluctuations in the field, which the sensor detects. This information is transmitted to the car’s computer, which uses that data to adjust things like variable valve timing, the amount of fuel to be injected into each cylinder and more.

Your car’s speed timing sensor is in use at any point that the engine is running. Because of that, it is subjected to a lot of wear and tear. There are also other issues that could affect its longevity, including contaminants, debris and the like. Additionally, the wiring harness could be damaged, which would prevent the sensor from transmitting information to the car’s computer.

With that being said, there is no specified lifespan for a speed timing/crankshaft sensor.

It’s important to know some of the more common symptoms of speed timing sensor failure so you can be prepared for it. These include:

  • The Check Engine light is on in the dash
  • The engine runs rough (misfire)
  • Loss of power from the engine
  • The engine may not crank

If you’ve noticed any of these symptoms, get a qualified mechanic to help. A professional mechanic can come inspect your vehicle, and replace the speed timing sensor if necessary.


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Luke

14 years of experience
138 reviews
Luke
14 years of experience
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Genaro

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Mr. Gutierrez was on time and very polite and fixed my truck very quickly. YEAH!! I have oil pressure again. This is the BEST thing ever! Get your auto repairs without ever leaving home and at very fair prices, I know because I did my research before stumbling upon your services. Again I am very please and will recommend your services to everyone. Thank You Very Much!!

Stefan

15 years of experience
367 reviews
Stefan
15 years of experience
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Stefan did a great job replacing a damage part in my car, the oil light kept flashing and after chanching the sensor which wasn't easy to get to....problem solved, I would definitely recommend Stefan.

Chris

9 years of experience
82 reviews
Chris
9 years of experience
Lexus IS350 - Pre-purchase Car Inspection - Parsippany, New Jersey
Chris was great! He was very professional and more than accommodating. He took great photos of my car, did a full work up on it to test some things out. Really an amazing service, I am so glad I found out about this! Chris was a perfect first experience and I would definitely work with him again in the future!

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