It's possible that the spark plug top may be missing/broken. Since the wires are new and you checked the inside of the new wire fer possible problems, then the only thing left would be the plug. Like to see piccies when you find out what the deal is... <img src="/forums/images/graemlins/smile.gif" alt="" />

1998 T-100 Xtra cab SR5 2WD Auto; Roadmaster Active Suspension; Yokohama Geolander HT-S; lowered air dam; full belly pan; 4? diffuser; 11" side skirts; dual transmission coolers; 67% grill blocked; Auto-RX'd; ScanGauge II/Ultra-Gauge