Having trouble, while driving the engine will start slowing down, and it starts bumping and will not accelerate. Its like the engine is pulling itself down and the gas is not getting to it. And it will go dead sometime, but it cranks right up. If anyone has any ideas let me know. But it is intermittant and doesn't do it all of the time. Everytime I take it repairman it won't do it, and after I leave it starts again.