Hi..i have a 2001 4.7lts 40th anniversary amazon..does anyone know if i have a big problem here but i stopped at a junction and was about to take off again and the car would not drive it just sat there and the what looks like the engine managment light lit up on the dash..i turned off the car sat a few seconds then started it and it drove away like nothing was wrong with no light showing and it has a smooth gear change with no noise..anyone got an idea whats was wrong..thanks.