• Check Engine Light. By far, the most common symptom of a bad crankshaft position sensor is a check engine light.
  • Excessive Engine Vibrations. If your engine has a faulty crankshaft position sensor, then it isn’t optimizing any performance.
  • Reduced Engine Performance. Whether you have a check engine light or not, a faulty crankshaft position sensor will lead to reduced engine performance.
  • Difficulty Starting Your Vehicle. If your defective crankshaft position sensor is extremely out of sync, you might have trouble getting your vehicle started.
  • Engine Stalling. While this indicates a severe fault, it’s possible that a faulty crankshaft position sensor could lead your vehicle to stall.
  • Engine Misfires. While it’s unlikely that a vehicle with a check engine light on will misfire, if the ECM uses incorrect positions of the crankshaft, it’s incredibly likely.
  • What happens if the crankshaft sensor goes bad?

    If the crankshaft position sensor or its wiring have any issues, it can cause the crankshaft signal to be cut off while the engine is running, which can cause the engine to stall. This is usually a symptom of a wiring problem, however a bad crankshaft position sensor can also produce this symptom.

    How do I test a crankshaft sensor?

    What happens when the camshaft sensor goes bad?

    Poor Drivability

    A failing camshaft position sensor begins losing its ability to quickly transfer data. Mismatched fuel delivery and ignition timing, even if off by a few milliseconds, will cause your vehicle to sputter, accelerate poorly, lack power, stall or even shut off.

    Related Question What are the signs of a bad crankshaft sensor?

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