NHTSA Complaint #10336009 — 2006 CHEVROLET MONTE CARLO

FOR THE COURSE OF A 3 MONTH PERIOD MY VEHICLE KEPT GIVING OFF CODES. AFTER SEVERAL CODES OF MISFIRING IT TOOK MY MECHANIC QUITE SOME TIME TO FIGURE OUT THE PROBLEM. HE JUST COULDN'T PUT A FINGER ON IT AND COULD ONLY FIND THAT ONE SPARK PLUG WAS GUNKY. HE CLEANED IT AND REPLACED IT TO SEE IF THAT WOULD HELP THE ISSUE. IT DID FOR ABOUT ONE MONTH THEN MY VEHICLE BEGAN GIVING OFF LOTS OF DIFFERENT CODES. AFTER IT CODED FOR THE 5TH OR 6TH TIME IT WAS FINALLY REALIZED THAT MY CAR WAS CODING DUE TO THE GAS AND OIL NOT DOING WHAT THEY WERE SUPPOSE TO BE DOING AND IT WAS CAUSING GUNKY BUILDUP UNDER THE ENGINE. WHAT ENDED UP HAPPENING IS THAT I HAD TO DO A MAJOR TUNE UP BECAUSE ALL THE SPARK PLUGS WERE GUNKY AND BURNED UP AS WELL AS THE WIRING AND ALSO HAD TO CLEAN THE FUEL LINES. FOR A CAR THAT ONLY HAD ABOUT 39,000 THIS SHOULD NOT NORMALLY BE REQUIRED AT THIS POINT! IN ADDITION I ONLY USE 93 OCTANE GAS WHICH IS REQUIRED OF MY CAR AND I TAKE MY CAR IN EVERY 3 MONTHS FOR A CHECKUP AND OIL CHANGE. I ALSO USE ONLY THE BEST OIL IN MY VEHICLE: MOBIL 1 FULLY SYNETHIC OIL (NO BLEND). I WAS TOLD THAT THIS WOULD NOT BE COVERED UNDER MY EXTENDED WARRANTY BECAUSE IT'S CONSIDERED A COMPLETE TUNE-UP. HOWEVER, IT IS OBVIOUS SOMETHING WAS NOT RUNNING RIGHT IN CONVERTING THE GAS 'N OIL UNDER THE ENGINE TO EFFECTIVELY DO THEIR JOB. A VEHICLE KEPT THIS WELL SHOULD NOT HAVE TO HAVE A FULL TUNE-UP REQUIRING ALL WIRING HARNESSES TO BE REPLACED WITH A VEHICLE OF SUCH LOW MILEAGE. THIS WAS A REPAIR THAT COST ME $660. THERE WAS SOME OBVIOUS MECHANICAL ISSUES HERE THAT ARE NORMALLY SEEN IN A VEHICLE THIS NEW. THIS IS SOMETHING YOU FIND IN A VEHICLE CLOSER TO THE 75 - 100,000 MILE MARK AND ALSO WITH ONE PERHAPS THAT DOESN'T USE THE BEST OF GAS, OIL AND MAYBE DOESN'T KEEP UP SO WELL WITH MAINTENANCE. I'M METICULOUS IN MY MAINTENANCE AND CARE AND I FEEL THERE WAS SOME DEFECTIVE ISSUES GOING ON THAT CAUSED MY PROBLEM. I HAVE ALL MECHANIC DOCUMENTATION TO ASSIST IN MY COMPLAINT. *TR