NHTSA Complaint #10133927 — 2004 MAZDA RX-8

AROUND THE MIDDLE OF JUNE I STARTED NOTICING STRANGE BEHAVIOR IN THE PERFORMANCE OF MY ENGINE IN MY MAZDA RX-8. WHILE MAINTAINING A HIGHWAY SPEED OF ROUGHLY 65MPH I WOULD HEAR A RATTLING NOISE IN THE ENGINE, LIKE MARBLES BOUNCING AROUND INSIDE. THIS WOULD BE FOLLOWED BY A SIGNIFICANT LOSS OF POWER IN ANY GEAR. AT NO TIME DID THE TEMP GAUGE NOTIFY ME OF OVERHEATING. THE PROBLEM WOULD GO AWAY WHEN I EASED OFF THE GAS TO A DANGEROUSLY SLOW HIGHWAY SPEED. ONCE GETTING OFF THE HIGHWAY, THE CAR WOULD ACCELERATE, BUT WITH NOTICEABLY REDUCED PERFORMANCE. AFTER THE THIRD OCCURRENCE OF THIS PROBLEM IN MID JULY, I DECIDED TO TAKE THE CAR IN FOR A DIAGNOSIS. WHILE EXPLAINING THE PROBLEMS TO ONE OF THE SERVICEMEN, I WAS TOLD THAT THERE WAS A RECALL ON THE FUEL TANK OF WHICH I WAS UNAWARE. I WAS ALSO TOLD THAT THE ENGINE PROBLEM I DESCRIBED WAS A SERIOUS ISSUE THAT THEY JUST STARTED HEARING ABOUT ON MANY OF THE RX-8''S, AND THERE WAS NO KNOWN FIX. HE MENTIONED THAT MY CAR COULD BE THERE FOR SEVERAL DAYS, NOT THE ONE DAY I WAS EXPECTING, AND THAT THERE WERE A LARGE NUMBER OF CARS WITH THE SAME ''MYSTERY'' ENGINE PROBLEM, AND THAT ONE CAR HAD ALREADY BEEN THERE FOR 35 DAYS. THIS CONCERNED ME, BUT I WAS ASSURED THAT MAZDA ENGINEERS WERE WORKING ON A FIX SO IT WOULDN''T BE A LONG WAIT ABOUT 2 WEEKS LATER I RECEIVED A PHONE CALL FROM SANDRA, MY SERVICE REP, INFORMING ME THAT MY CAR WAS READY. SHE TOLD ME THAT THE KNOCKING I WAS HEARING IN THE ENGINE IS DUE TO USING THE WRONG GAS. I TOLD HER THAT I HAVE ALWAYS USED 93 OCTANE AND NOTHING LOWER, AND THAT THE NOISE WAS NOT THE REGULAR KNOCKING YOU GET FROM BAD GAS. SHE TOLD ME SHE WOULD HAVE TO CALL MAZDA CORP BACK TO FIND OUT MORE ABOUT MY PROBLEM. THE NEXT DAY SHE CALLED ME BACK AND TOLD ME THAT MAZDA WAS GOING TO REPLACE MY ENGINE. FROM WHAT SHE TOLD ME, NO ONE REALLY KNEW WHAT WAS CAUSING THIS PROBLEM, BUT THAT REPLACING THE ENGINE SHOULD FIX IT. I WAS TOLD THAT MY CAR WOULDN''T BE READY FOR ''A COUPLE OF WEEKS''.