Crankshaft Position Sensor

On 2.5L and 4.0L, Crankshaft Position (CKP) sensor is mounted to left side of transmission bellhousing. On 4.7L, CKP sensor is bolted to side of engine cylinder block, above starter motor. On all models, CKP sensor is a Hall Effect-type sensor that reads slots on outer edge of flywheel/flexplate. Each slot causes a pulse to be generated as it passes under CKP sensor. Signal generated provides engine speed and crankshaft position information to the PCM, which along with other input signals, determines fuel injection sequence and ignition timing.