Question about 1993 Jeep Grand Cherokee

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No spark fuel pump not working but when i jump it around relay it works

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Do u realize the fuel pump only runs for 1 second when the key is turned to run unless the engine is started?? one second that is it. so chances are the pump is fine, u need to run a diagnostic fault code test, here is how u do that without a scanner. Go to the link for instructions and fault code lists.

http://www.extreme-check-engine-light-codes.com/Chrysler%20OBD1%20Decoder.htm

Posted on Sep 27, 2010

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