NHTSA Complaint #10325264 — 2002 FORD MUSTANG GT

I OWN A 2002 FORD MUSTANG GT WITH A 2-VALVE 4.6L ENGINE WITH ONLY 46K MILES. AROUND 1 APR 10 I STARTED HEARING A DISTINCT TICKING NOISE FROM THE ENGINE. NOT BEING THAT MECHANICALLY INCLINED, I ASSUMED SOME LIFTERS NEEDED ADJUSTING; SO, I BRUSHED THE NOISE OFF. ON 10 APR 10 I WAS DRIVING ON THE INTERSTATE WHEN I HEARD A LOUD BANG AND THEN SOUNDS THAT PATTED LIKE A HARLEY RUNNING OUT OF GAS. MY CHECK ENGINE LIGHT FLASHED SEVERAL TIMES. FORTUNATELY, I WAS ONLY 2 MILES FROM HOME; SO, I SPUTTERED THE REST OF THE WAY. AS I HAVE A DIAGNOSTIC TOOL, I CHECKED THE CODE AND IT READ THE #3 CYLINDER WAS MISS FIRING. I CALLED MY MECHANIC AND HE TOLD ME TO CHANGE THE SPARK PLUGS. ONCE I FIGURED OUT HOW TO GET ALL THAT DONE, I REMOVED THE COIL FROM THE CYLINDER AND IT WAS SHREDDED WITH THE COIL DANGLING. I EXTRACTED THE SPARK PLUG WITH NO RESISTANCE BECAUSE IT WAS JUST SITTING IN THE HOLE. TO MY SURPRISE, IT WAS THE ORIGINAL SPARK PLUG THAT CAME WITH THE CAR. I TRIED TO PUT IN A NEW SPARK PLUG, BUT IT WOULD NOT TIGHTENED AT ALL. I ATTEMPTED SEVERAL TIMES AND EVEN TRIED TO MAKE IT CROSS-THREAD, BUT IT WOULD NOT TAKE. WHEN I TOOK A GOOD LOOK AT THE SPARK PLUG, I SAW WHERE THE BOTTOM THREE THREADS WERE SMASHED FLAT AND THE METAL THAT YOU GAP WAS MASHED AGAINST THE ELECTRIC DIODE. I CALLED BOB MOORE FORD IN OKC AND THE SERVICE WRITER, GERRY, TOLD ME THERE WERE NO RECALLS FOR THAT EVENT. I ASKED HIM WHAT COULD HAVE CAUSED IT AND HE RESPONDED IMPROPERLY TORQUED SPARK PLUGS. WHEN I TOLD HIM IT WAS THE FACTORY PLUG, HE SAID THEN HOT RODDING MUST HAVE CAUSED IT. I TOLD HIM ITS MY WIFE'S CAR AND THE CAR DOESN'T TAKE ANY ABUSE. I ASKED HOW MUCH BOB MOORE CHARGES TO DO A HELICOIL AND HE SAID $500. I LET HIM GO. I ENDED UP TAKING IT TO A MECHANIC SHOP AND GETTING THE CYLINDER RE-THREAD FOR WHOLE LOT LESS AND WHOLE LOT BETTER ATTITUDE. HOPEFULLY, IT HOLDS. *TR