Skip the auto shop - Our mechanics make house calls

How Long Does a Speed Timing Sensor Last?

speed timing sensor

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How to Find the Keyless Code on a Ford Explorer or Mercury Mountaineer
Many Ford Explorers and Mercury Mountaineers were manufactured with an option known as the Ford keyless entry keypad. Some models refer to it as SecuriCode as well. It...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...


Related questions

Q: Will my car turn on normally again once I fix the crankshaft position sensor?

A faulty crankshaft position sensor could cause hard starting but to determine if the sensor itself is faulty it has to actually be tested. Often, there will be a Diagnostic Trouble Code (DTC), that is generated by the car's computer,...

Q: Why won't my car start now? What else should we look at?

Hi. This sounds like the engine timing may still be off and needs to be rechecked for proper alignment. Some of the wiring to the crankshaft sensor may be damaged as well causing it not start as well. Also, the...

Q: When warm, my car does not get more than 3000 RPM. No kickdown. Loss of power.

Your symptoms suggest a failure of the throttle position sensor. This failure should result in a Check Engine light, or an ETS (Electronic Throttle System) warning light. To avoid any unnecessary repairs, I would recommend having the car's loss of...