I just replaced my radiator and water pump, 1996 zj v8 5.2L, I started it up pulled it out to make sure no leaks and setting it all in hopefully correct, and parked back on the driveway and it just died on me and check guages light, I just replaced the spark plugs and wires not to long ago, they were working well after I had put them in so I dont think thats the problem, but now it just cranks and jeep wont turn over.. any suggestions or help? spark fuel compression?

 

Check for spark and fuel pressure first, then let us know what you find.