My rattle is back after 7000 miles. It is sporadic and most noticeable after sitting for 8 plus hours. The first time I had the rattle was at 7000 miles. Strange Coincidence. Probably not. Drove it to 42k and had it fixed in December. Now I am at 49k.
I have part CD Cams and Part C Sprockets. I also had all timing components replaced including updated tensioners and solenoids. I now change the oil at 5k too with a Ford Performance filter too.
The Truck has sat more than ever with Covid Lockdown and I recently had a bad battery. Part of me hopes it something else rattling but after listening to it for 32k, I know the truth. The Truck is f%$cked again and this time I am driving the bastard until the engine rattles apart! Then maybe they will have a real fix before my 125k warranty runs out. I love my Truck and I am so deep into mods I cannot afford not too but this sucks!
If FordTechOne has any words of encouragement, I am all ears.