I WAS AT A COMPLETE STOP.BWHIND A VEHICLE AT A STOP LIGHT. WHEN I RELEASED THE GAS, MY VEHICLE SURGED FORWARD AND HIT THE VEHICLE IN FRONT OF ME. FRON THAT DAY FORWARD, MY VEHICLE HAD FREQUENTLY SURGED FORWARD OR REVED UP QHILE AT A COMPLETE STOP. NOW, MY VEHICLE WILL SHUT OFF WHILE I'M DRIVING WITH NO WARNING. THE ONLY LIGHT I SEE IS THE WRENCH LIGHT AND THAT'S ONLY WHILE THE VEHICLE IS ROLLING TO A STOP AFTER SHUTTING OFF.