Question about 2002 Jeep Grand Cherokee
HI. This will require you to have the engine CPU scanned for trouble code's. This can only be administered with the assistance of a diagnostic computer scan tool. You can purchase this tool at your local auto parts store, or you can just have the scan ran at your local auto zone parts store, free of charge. Once the diagnostic scan is administered, you will be able to isolate the issues that have caused the check engine light to illuminate.
This scan tool will display a print out code and the location of the issue, on the engine, as well. There are Many issues that will cause the engine light to illuminate, but the most common cause will be a failed monitoring sensor, or sensor harness failure(separated power wire, or ground).
Once you have the codes, kindly return to the site, and post them here. We will be able to assist with more accuracy, once the codes are posted.
Posted on Aug 19, 2010
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Posted on Jan 02, 2017
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