Was driving down the road yesterday at 55 mph and for about 5 seconds I lost power but started going again. Today I pulled up to a stop sign and the truck just died, cranked it over and no start, no spark coming out of the coil wire. Was gettin ready to jump in with a neighbor after about 10 minutes,tried it 1 more time and it started up.Got home no problem, obviously got spark now.Where should I begin? Its a 1989 3.0 liter, A.T.,190k. Thanks METALMOVER

1987 Raider,2.6,mt,78"Meyer snow plow,100lb. Doberman alarm,weber carb, lockouts from here- 1989 V-6,SWB, A.T. 4x4, 31'S