[Obama_Is_Sabotaging_America]

Do you have a data link port for attaching a diagnostics tool somewhere along the left side of your dash, sort of like this? THERE IS A UNIVERSAL DATA PORT ON ALL CARS 1996 AND NEWER. Perhaps take it to an Autozone or try to find someone who can attach a diagnostics reader to the data port to get error codes to pinpoint the problem.

Or, here: Jeep Wrangler suddenly dies (forum)

Have you checked your gas cap? You could be loosing pressure in your fuel system due to faulty gas cap.

If the death is immediate without any sputtering I am thinking it's an electrical short of vacuum hose leak, leaning towards short. Does the problem happen only after reaching max engine temp? That could be a clue.

REMEMBER THE GOLDEN RULE OF TROUBLESHOOTING:

"ALWAYS START WITH THE LEAST EXPENSIVE PROBLEM AREA AND WORK YOUR WAY UP FROM THERE"

[sloop]

they pulled the codes - none were present