THROTTLE STICKS IN UP POSITION, REQUIRING A HARD PRESS( STOMP) TO ACTIVATE. THIS LEAD TO A ACCIDENT IN WET WEATHER WHERE THE STOMP LED TO THE VEHICLE SPINNING OUT DURING A TURN. WAS TOLD BY REPAIR SHOP THAT THE BUTTERFLY WAS STICKING AND CAUSING THE PROBLEM. I ALSO HAVE HAD PROBLEMS WITH THE SPEED CONTROLL STAYING ON DESPITE PRESSING THE BRAKE PEDAL. (TIRESIZE: 235/175R15)