I have a 96 Jeep Grand cherokee and It worked last night and i went to start it and it wont start everything turns over it just won't start need help pleaseeee!!!????

okay, what did you work?...don't answer...let's diagnose: air=yes we have air; fuel=check please; spark=check please; timing=a real pisser, if you get that one wrong...are you the DOHC with two chains? they do stretch and the tension shoe runs out of space because the chain gets stretched~ not a big whoop, just a lot of putzy more than a weekend type affair~

Im not sure what you mean i barely know anything about cars

my engine is a 6 cyl

right. the 4.0 liter~

that's like one liter per cylinder....that's a mighty big displacement...'bout three times the size of my little toyota motor~ personally worked on one in my mechanic experience...it was whistling...cause intake gasket...only took a moment of inspection with a cardboard tube to find it.~

one of these dandies: http://www.jcwhitney.com/ignition-control- module/p2019009.jcwx? TID=8000000&origin=pla&JCW=1&JCW_SRC=PPC&003=27372719&010 =96JeGrSta1081256&VSID=d50368y1996j1&gclid=CJmdyInd2rcCFVRk7 AoduwgAmA

judge_roy, what are you talking about? DOHC '96 Jeep? One liter per cylinder? Only 2 engines available in '96 Grand Cherokee: 4.0L I6, 5.2L V8. I agree with tennisshoes, could be crank sensor, very common for 4.0L. Also very common for all ZJ body ('93-'98) Grand Cherokees is the fuel pump.