NHTSA Complaint #10404521 — 2004 FORD F-150

AFTER STARTING THE TRUCK, AND HAVING SEEMINGLY NORMAL OPERATION. IT STARTED TO RUN ROUGH AND HAD A MARKED LOSS OF POWER. THE CHECK ENGINE LIGHT DID NOT INITIALLY ILLUMINATE, GIVING NO INDICATION OF A SERIOUS PROBLEM. THINKING THIS WAS A TEMPORARY PROBLEM, WE CONTINUED HOME. THE NEXT DAY MY WIFE TOOK THE TRUCK ON HER NORMAL DAILY ROUTINE. SHE NOTIFIED ME LATER THAT THE TRUCK HAD GOTTEN WORSE AND THAT IT WAS VERY ROUGH AND LOW ON POWER, TO THE POINT OF MAKING MERGING VERY DICEY. WE TOOK THE CAR TO THE DEALER FOR DIAGNOSIS AND THEY FOUND A WIRING HARNESS HAD CHAFED THROUGH DUE TO A RIDING CONDITION ON AN AIR CONDITIONING LINE. THIS AFFECTED COIL NUMBER 4. THE DEALER REPAIRED THE CHAFED WIRE AND RETURNED THE CAR TO SERVICE. THE IRONIC THING(OR DISAPPOINTING, DEPENDING ON YOUR PERSPECTIVE) WAS THAT WE HAD THE CAR IN FOR A RECALL CAMPAIGN FOR A CHAFING WIRE IN THE AIRBAG SYSTEM. *TR