NHTSA Complaint #10351053 — 2003 FORD EXPLORER

I OWN A 2003 FORD EXPLORER-4.6 LITER V8 4 WHEEL DRIVE, THE VEHICLE HAS 158,000 MILES AND HAVE EXPERIENCED THE SPARKPLUG BLOWOUT WHILE DRIVING HOME FROM WORK. I WAS TRAVELING ON A BUSY STATE ROAD WHEN THE ENGINE MISS FIRED AND THEN HEARD A LOUD POP AND THE ENGINE WENT TO MISSING BAD. I IMMEDIATELY PULLED TO THE SIDE AND CHECKED TO SEE WHAT WAS HAPPENING. I LIMPED THE VEHICLE INTO A PARKING LOT AND PROCEEDED TO REINSTALL THE PLUG AND COIL PACK. THE FORCING PUSH OF THE PLUG BROKE THE COIL PACK AND TORE THE PLUG BOOT. I JUST REPLACED THE COIL PACK AND PLUG BOOT ASSEMBLY AND REINSTALLED THE PLUG BCK IN. I FEEL THAT THIS ISSUE IS COMMON ON THE 4.6 LITERS, A FRIEND AND SHADETREE MECHANIC DID A MOTOR SWAP IN AN EXPEDITION WITH THIS SAME MOTOR FOR THE SAME REASON CAUSE THE PLUG IN CYLINDER #4(PASSENGER REAR) TORE THE THREADS COMING OUT AND LET LOOSE METAL INTO THE PISTON JOURNAL AND CAUSED SEVERE DAMAGE. *TR