SUDDEN UNINTENDED ACCELERATION (UA) - TURNING RIGHT IN SERVICE STATION; ACCELERATOR WENT ALL THE WAY TO FLOOR. ALMOST NO BRAKES. BARELY MISSED GAS PUMPS AND GAS DELIVERY TANKER. GOT ON STRAIGHTAWAY AND TURNED OFF IGNITION, STOPPING WITH AID OF PARKING BRAKE. JEEP SERVICE DEPT. REPORTED NOTHING WRONG WITH VEHICLE --"MUST HAVE BEEN CAUSED BY FLOOR MAT". THE PROBLEM IS OBVIOUSLY IN THE CRUISE CONTROL AS IT IS THE ONLY DEVICE THAT CAN PULL THE ACCELERATOR CABLE TO WIDE OPEN THROTTLE. HAVE DISCONNECTED THE CRUISE CONTROL AND WOULD ADVISE ALL CHEROKEE OWNERS TO DO THE SAME. *AK