Common Symptoms
- Engine cranks but does not start
- Intermittent stalling or sudden engine shutdown while driving
- Rough idle or engine misfires
- Check Engine Light illuminated
- Tachometer fluctuates or reads zero
- Poor acceleration or hesitation under load
Most Likely Root Causes
- Damaged or worn crankshaft position sensor reluctor ring or tone wheel
- Faulty crankshaft position sensor
- Excessive air gap between crankshaft position sensor and reluctor ring
- Corroded or damaged wiring harness or connector at sensor
- Engine timing components slipped or misaligned
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Component Location
The crankshaft position sensor is typically mounted on the engine block near the crankshaft pulley or on the transmission bellhousing facing the flywheel.
Manufacturer Notes
Some manufacturers have updated crankshaft position sensor brackets or reluctor ring designs to address signal quality issues on certain engine platforms.
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