1995 Eagle Talon What can it be?

Engine Performance problem
1995 Eagle Talon 4 cyl Front Wheel Drive Automatic

My car works fine for a little while, but turns off about 30min to a couple hours later. At first it just turned off while i was stopped, but on and now it turns off while I'm driving also. It use to turn back on right away, but now it takes about 30min to an hour to turn back on. I've checked many little things, but none of it works. I'd greatly appreciate anyone who can help. THANK YOU.