Im not even home and have not driven my car for about 6 months now, it dosent seem like a BIG deal but if i can fix it I will... sometimes at a stop light or stop sign for long periods of time my car will give a random "shake" my car idle's very smooth and i take very good care, never gone over 3k without oil change and had all spark plugs, wires, dist. cap, ignition coil replaced with AC Delco Platnum stuff. This random shake is so wierd and it happens so seldom that it scares me when it does it, I check my rear view because it almost feels like someone bumped me.