ferncalderon

hi have a 92 chevy 4x4 the problem i have is that the truck turns on and drives but at times i can be driving it and it will cut off but will come back on within seconds of the cut off. sometimes it just wont start at all. i changed out the distubitor(new) pick up coil and ignition coil but it still does the same. now the other day i was messing with the distubitor and pulled one of the spark wire to see if it sparked. at the time it didnt spark but when i moved one of the harness in the ignition module it started up so i thought it was the little harness so i replaced it and it started but it still doing the same thing as before. any ideas from anybody who as a clue! this is my first chevy truck