I have a 95 GT that is bone stock and a daily driver, about once in a while you can be driving along and the car will jerk [my wife calls it a hicup] the car does not back fire it just acts like the ignition was turned of and back on ,it has new wires from ford and a new dist cap and plugs, i sprayed water all over the cap and coil and it just keept running fine, what gives??????