im still kind of new at all of this and didn't know if this was the best way to post this. two days ago i went to pick up my wife at work, the jeep drove fine, smooth as butter. as soon as i got into the parking lot and sat at idle the thing just shut clean off. not electrically but as if the jeep just ran out of gas. called a friend and they were on our way to pick us up. while waiting, i tried starting it again, and again. finally giving up until my friend got there. trying one more time, i cranked and turned it over. i thought i would dare to get home and started down the road only to die not far from her work. i rolled it into an apartment lot and came back to it the next day. this is getting long so ill make it short. every time i give it a while, it starts right up. however, when i drive it for a short time it cuts off (not out but just flat out off!!) so i thought fuel filter (replaced) then i thought fuel pump (replaced) neither of these worked so i checked spark. plugs, wire, distributor, rotor, fuel pump relay, crankshaft sensor....im running out of options. ive looked at all of these posts and none have quite the problem i do. im sure it will start right up tomorrow morning and **** me off again! LOL

 

Is it the 89 XJ? What motor does it have?