How to Locate the Crank Position Sensor

by Cayden Conor

A crankshaft position sensor tells the computer how fast the crankshaft is turning, and what position the No. 1 cylinder is during the four-stroke cycle. The crankshaft position sensor uses pickup coils, hall effect sensors or optical sensors to see the information, then sends it to the computer. Often, the crankshaft position sensor, depending on the year, make and model vehicle, works along with the camshaft position sensor to calculate misfire.

Open the hood of the vehicle.

Locate the crankshaft pulley on the front of the engine. The crankshaft pulley is usually the largest pulley at the bottom of the engine, depending on the year, make and model vehicle.

Look for a sensor that is directly behind the pulley. The sensor has an electrical wiring harness plug on it. The number of wires on the connector depends on the year, make and model of the vehicle. The type of pickup also depends on the year, make and model of the vehicle.

About the Author

Cayden Conor has been writing since 1996. She has been published on several websites and in the winter 1996 issue of "QECE." Conor specializes in home and garden, dogs, legal, automotive and business subjects, with years of hands-on experience in these areas. She has an Associate of Science (paralegal) from Manchester Community College and studied computer science, criminology and education at University of Tampa.

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