2003 FORD F SUPER DUTY Engine And Engine Cooling Problems

WE HAVE HAD 4 SPARK PLUGS BLOW ON THE MOTOR IN 4 YEARS AND TWICE JUST THIS YEARS OF 2011. LEAVING US STRANDED TWICE, ONCE 1/2 MILE FROM HOME SO WE DROVE HOME, AND ONCE IN WYOMING(1,101 MILES AWAY FROM HOME, AT 46 BELOW ZERO SO WE HAD TO UNPLUG THE FUEL INJECTOR SO WE COULD GET TO HELP ON X-MAS DAY AFTER WE HAD DRIVING TO MY DADS FUNERAL ALREADY FOR 14 HOURS TRYING TO GET THERE, WE STILL HAD 9 MORE TO GO AND IT WAS 5:30 A.M. BUT NOW WE COULD NOT DRIVE OVER 50 MILES PER HOUR FOR FEAR OF WHAT MAY HAPPEN. SNOW STORM AND HOLIDAY NOTHING OPEN..... SOMETIMES YOU HAVE NO CHOICE OF WHAT IS SAFE AND WHAT IS THE SMART THING TO DO, WE HAD TO KEEP MOVING DO TO THE SNOW STORM AND THE COLD. THIS WAS THE SECOND TIME WE HAVE...

ON 7/8/05 AS MY WIFE WAS BACKING OUT OF THE DRIVEWAY, MY FORD F250 DEISEL LARIET STALLED. SHE TURNED THE IGNITION OFF THEN TRIED TO START IT. THE LIGHT INDICATING THE GLOW PLUGS HAD WARMED UP SUFFICIENTLY WOULD NOT GO OFF SO SHE TURNED OFF THE IGNITION KEY AND TURNED IT BACK ON. THIS TIME THE GLOW PLUG LIGHT INDICATOR WENT OFF AND THE ENGINE STARTED FINE, HOWEVER, THE ENGINE ACTED LIKE IT DID NOT WANT TO CHANGE GEARS. SHE DROVE IT SLOWLY FOR A BLOCK THEN DECIDED TO BRING IT BACK TO SAY IT WASN'T WORKING PROPERLY BUT WHEN SHE GOT BACK IT SEEMED TO WORK OKAY. SHE TURNED IT BACK AROUND AND IT WORKED FINE. AS SHE HAD TURNED AND WAS DRIVING DOWN AROUND A CORNER, THE ENGINE SUDDENLY STALLED. WITH DIFFICULTY SHE PULLED ONTO THE SHOULDER OF THE ROAD, PUT IT IN PARK AND TURNED THE IGNITION...