hey guys.... i have a problem with my car... ill be driving and all of a sudden the rpms will start going up to like 6000rpm.... even when the car is in neutral.... like the gas pedal is being pushed down but its not... so its like i am revving my engine when im really not.... sorry i cant be more descriptive but thats the exact problem... my car revs up the rpms on its own.... anyone know what a possible problem is???? any help would be appreciated... thanks