my 95 xj 4.0 has been just cranking over but not quite firing. it has fuel to the rail, and has spark. i noticed the other day that my radio and blower fan were not working. i pulled the dash apart to have a look at the wiring behind it and couldnt figure out what was going on. while messing with it i bumped the ignition switch and both started working. soon after that it had the trouble starting. my question is could it be the switch that's not letting it fire easily? could the contacts just be worn out so it doesn't get good spark? when i wiggle the switch around while trying to start it sometimes fires, but runs like crap. thanks for responses folks.