Common Symptoms
- Engine cranks but does not start
- Engine stalls intermittently or dies while driving
- Rough idle or engine misfire
- Check Engine Light illuminated
- Poor acceleration or hesitation
- Tachometer erratic or not working
Most Likely Root Causes
- Faulty crankshaft position sensor
- Damaged or corroded wiring harness to crankshaft sensor
- Poor electrical connection at crankshaft sensor connector
- Timing belt or chain damage affecting reluctor wheel
- Engine control module internal fault
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Component Location
Crankshaft position sensor is typically mounted on the engine block near the crankshaft pulley or flywheel/flexplate area.
Manufacturer Notes
Some manufacturers use magnetic or Hall-effect type crankshaft sensors with different testing requirements and failure patterns.
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