NHTSA Complaint #10120775 — 2000 HYUNDAI SONATA

I HAVE MADE FIVE TRIPS TO THE DEALER WITH THE SAME PROBLEM WITH MY 2000 HYUNDAI SONATA WHICH WAS PURCHASED FROM ALLEN TURNER HYUNDAI IN PENSACOLA, FL AND IS SERVICED BY THEM DUE TO IT IS STILL IN WARRANTY. MY CAR MAKES A LOUD CLONKING SOUND AND THEN STOPS AND ALL POWER GOES OFF. THIS HAPPENS NORMALLY WHEN I GO OVER 30-40 MPH AND HAS HAPPENED WHILE DRIVING 70 ON THE INTERSTATE AND ALMOST CAUSED ME TO WRECK ON A BRIDGE BECAUSE I HAD NO SHOULDER TO GO OFF ON AND CARS ALMOST SLAMMED INTO THE BACK OF ME. AFTER IT SHUTS DOWN, IT TAKES ANYWHERE FROM 10 MINUTES TO ONE HOUR TO START AGAIN. IT TURNS OVER BUT WILL NOT START AFTER THIS HAPPENS. AS SAID I HAVE TAKEN THIS 5 TIMES TO THE DEALER, THIS LAST TIME THEY KEPT IT 5 DAYS AND FOUND NOTHING. I HAD THEM DRIVE IT HOME. PRIOR THEY TOLD ME IT WAS A COMPUTER ERROR AND WAS FIXED, AT FIRST THEY SAID IT WAS THE COMPUTER BOARD BUT THEN SAID THE BOSS SAID IT WAS JUST "BAD BATTERY CABLES." AND CLEANED OFF THE CABLES. I HAD A NEW BATTERY PUT IN. THEY TOLD ME IT WAS THE AIR FILTER HAD JUMPED OFF THE TRACK AND JUST NEEDED PUT BACK ON. THE LAST 2 TIMES THEY SAID THE COMPUTER READ NOTHING. I ASKED THEM ABOUT THE GAS LINE OR WATER IN THE GAS AND THEY SAID THEY CHECK ALL THIS, CHECKED CRANK SENSOR, CHANGED MASS AIR FLOW SENSOR, "BAD CONNECTION", TIGHTENED CABLE ENDS PER TECH LINE. THE LAST TIME THE INVOICE JUST TELLS ME THE COMPUTER READS OK. I HAD THEM DRIVE IT FOR 5 DAYS FOR 218 MILES BUT IT DID NOT REPRODUCE PER TECH. I AM GOING TO GET KILLED IN THIS CAR AND THEY HONESTLY JUST DON'T TAKE IT SERIOUSLY. I AM A FEMALE AND DRIVE BY MYSELF ALOT AND IT SCARES ME TO LOSE CONTROL OF MY VEHICLE AND FOR THIS TO HAPPEN AT NIGHT. I JUST CAN'T SEEM TO GET THE DEALERSHIP TO TAKE IT SERIOUSLY. HELP ME.