NHTSA Complaint #10971943 — 2006 FORD EXPEDITION

WHILE IN TRAFFIC, AT LEAST 100 TIMES IN THE LAST FOUR YEARS (AT VARIABLE SPEEDS FROM 5 TO 65 MPH ON CITY STREETS AND FREEWAYS) MOST RECENTLY TWICE IN THE LAST WEEK, THE RPMS DROP BELOW 500 AND THE VEHICLE DIES AND "ENGINE FAILSAFE MODE" LIGHTS UP ON THE DASH. I HAVE TO EITHER COAST TO PULL OVER OR DEAD STOP IN THE MIDDLE OF THE ROAD. I HAVE TO TURN THE VEHICLE COMPLETELY OFF (EVEN THOUGH IN FAILSAFE MODE ENGINE IS OFF, THE ELECTRONICS ARE STILL ON) AND THEN RESTART AND THEN IT WILL DRIVE JUST FINE UNTIL IT HAPPENS AGAIN. IT HAPPENS ANYWHERE FROM ONCE EVERY 6 MONTHS TO 6 TIMES IN 1 WEEK. IT SEEMS AS THOUGH IF I DRIVE WITH BOTH FEET IN TRAFFIC AND MAINTAIN ABOUT 800-1000 RMPS AT ALL TIMES IT DOESN'T DO THIS, HOWEVER THIS CANNOT BE DONE ALL THE TIME ESPECIALLY WHEN TRYING TO STOP THE LARGE VEHICLE QUICKLY OR TURNING IN AN INTERSECTION. NOTHING HAS BEEN DIAGNOSED BY DEALERSHIP AS NO CODES ARE THROWN. I ALSO OWN A OBD2 READER AND NO CODES HAVE EVER LISTED UNLESS ITS TIME TO CHANGE THE SPARK PLUGS. SEVERAL DIFFERENT MECHANICS, FORUMS AND BRAINSTORMING HAS NOT FIGURED IT OUT. I HAVE REPLACED MOSTLY EVERYTHING WITH EXCEPTION TO A NEW TRANSMISSION AND COMPUTER. MOSTLY EVERYTHING INCLUDING WIRES AND VACUUM LINES AND GASKETS HAVE BEEN REPLACED DUE TO MAINTENANCE OR REPAIRS FROM EVERYTHING ELSE THAT HAS GONE WRONG WITH IT. I HAVE PUT ABOUT $10K INTO NEW PARTS FOR THIS VEHICLE. I BOUGHT IT WITH 60K MILES ON IT AND IT NOW HAS 117K, ITS A DAILY DRIVER WITH 28 MILES OF TRAVEL 5 DAYS A WEEK. ALSO THE ONLY VEHICLE THAT FITS ALL OF THE CHILDREN FOR SOCCER, TRACK AND VOLLEYBALL TRAVELING TOURNAMENTS/GAMES. LUCKILY IT DOESN'T HAPPEN VERY OFTEN WHEN I'M NOT IN TRAFFIC SO THE KIDS AREN'T USUALLY WITH ME BUT IT IS VERY SCARY NOT TO KNOW IF YOU ARE GOING TO STOP OR IF THE PEOPLE BEHIND YOU ARE GOING TO HIT YOU OR NOT.