Expedition 4WD V8-4.6L SOHC VIN W (1999)
Crankshaft Position Sensor: Description and Operation
The Crankshaft Position sensor (CKP) sensor:
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is a variable reluctance sensor.
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is triggered by a 36-minus-1 tooth trigger wheel mounted on the crankshaft.
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provides base timing and Crankshaft Speed (rpm) to the Powertrain Control Module (PCM).
