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Home >> GMC >> 1995 >> Yukon 4D Utility >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - 6.5L Diesel >> Computerized Engine Controls >> Input Devices >> Crankshaft Position Sensor

Crankshaft Position Sensor

Sensor is a PM type sensor and is mounted at front of crankshaft. Front crankshaft hub includes a wheel with 4 slots. Control module uses crankshaft position sensor to detect engine RPM. This signal is used to improve idle. If pump cam signal is lost, control module will use crankshaft position signal data to control injection timing and fuel flow.

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