Update : replaced plugs, wires, fuel filter, checked grounds, also discovered this problem only happens when warm. If u start car and drive u can get maybe 1 min of normal driving before the jolting starts, now I'm beginning to think...wur?....accumulator? Timing? Did it somehow jump a tooth? How if it was fine until I shut it off? clogged injector?....plz any feed back would, be nice...anyone ever heard of anything like this. Pkz let me know?