NHTSA Complaint #11161174 — 2018 FORD F-150

MY TRUCK HAS A CONSTANT RATTLE/DETONATION/PREIGNITION NOISE DURING ALL DRIVING. IT IS ESPECIALLY BAD DURING HOT SUMMER MONTHS. IT HAS ONLY GOTTEN WORSE AS MONTHS HAVE GONE BY. IT IS ESPECIALLY NOTICEABLE WHILE CLIMBING VERY SLIGHT UPHILL GRADES AND AT SPEEDS BETWEEN 35-55MPH. IT CAN BE HEARD FROM INSIDE AND OUTSIDE VEHICLE. THE NOISE IS COMING FROM ENGINE. A VIBRATION AND SHUDDER CAN BE FELT IN VEHICLE WHEN NOISE IS PRESENT. WHEN IT IS REALLY BAD, THE SOUND IS VERY LOUD AND SOUNDS LIKE A METAL HAMMER BANGING ON INSIDE OF ENGINE. I WAS TOLD THIS WOULD GET BETTER WITH MILEAGE, BUT HAS ONLY GOTTEN WORSE. I HAVE AUDIO AND VIDEO RECORDINGS OF NOISE OVER THEN PAST 10MONTHS. I AM VERY WORRIED THAT THIS ENGINE IS GOING TO FAIL.