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How to Repair the Crankshaft Sensor on a Mitsubishi Eclipse

by Cayden Conor

The crankshaft sensor on the Mitsubishi Eclipse is located near the crankshaft pulley. It sends a signal, via voltage, to the computer, signaling the location of the crankshaft and engine speed. If the crankshaft sensor malfunctions, the vehicle may or may not run, depending on the year and the type of electronic control module functions it has. Some Engine Control Modules, especially the ECMs in newer cars have a "limp home" mode where the computer reverts to the last known good setting so you can get the Eclipse home. You should change the crankshaft sensor if you notice decreased engine performance and higher fuel consumption in your Eclipse.

Disconnect the negative battery cable with a wrench and set it aside, ensuring that it doesn't touch metal. Unplug the sensor's wiring harness connector.

Remove the sensor's retaining bolt with the appropriate socket. Remove the sensor from the engine.

Install the new sensor and tighten the retaining bolt firmly. Plug in the wiring harness connector. Reconnect the negative battery cable.

Items you will need

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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