A crank sensor is an electronic device used in an internal combustion engine, both petrol and diesel, to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters.
What happens when a crank sensor goes bad?
The most common symptom associated with a bad or failing crankshaft position sensor is difficulty starting the vehicle. ... If the crankshaft position sensor is having a problem, the vehicle may have intermittent starting issues or may not start at all.
What are the signs of a bad crank sensor?
Symptoms of a Bad or Failing Crankshaft Position Sensor
- Issues Starting the Vehicle.
- Intermittent Stalling.
- Check Engine Light Comes On.
- Uneven Acceleration.
- Engine Misfires or Vibrates.
- Rough Idle and/or Vibrating Engine.
- Reduced Gas Mileage.
