This problem happened once about a year ago, and never happened until last week. I will be driving down the road, even if Im at 3000rpm in 2nd, the car will just stall out. When I go to start it, sometimes it will, other times it will just crank and crank and I have to let it sit overnight. The mechanic said he has no idea what it could be besides a spark issue. This thing is unsafe to drive.