Well, on the 2001 Fofo, sometimes but rarely. i guess my girlfriend (shes the one who drives it) will start the car and sometimes it will shake and shut off. but whats mostly weird about that is ive replaced the alternator, battery, plugs, wires, etc. but it starts up perfect and runs great! but the problem is when its started sometimes it shakes alittle bit. and she told me there were two times within about two months that she would start it up all nice and neat. and just as she puts the car in reverse it stalls. like i said ive drivin it and looked to find really nothing noticeable, it is a rare thing. but sometimes the car shakes alittle bit at a stop. and others it purrs like a kitten. its the 2001 SPI automatic, any help would be appreciated!