Low oil pressure can be cause by the oil pump, oil pressure regulator which is by the pump. Timing chain tensioner ( they blow the o ring seal), Phasers ( they do leak) thrust bearing failure ( check for crank end play to DG this) excessive wear on main bearings, excessive wear on the cam caps ( usually this is damaged by low oil
Pressure). As a ford tech when I see this much damage. I recommend a long block. Because the extend of the damage is unknown and to do a tear down is expensive. So it better to spend the money toward a long block then labor. Know what I mean. And maybe at the end just to find out. It may need a motor then it's waited money. Plus ford reman motor
Have 3 yr unlimited mile warranty. Even on over the counter motors. Good luck. You can go after that dealer as they choose to contract him. Also isn't it law that the dealer has to warranty a car for 90 days after they
Sell the car?
Sent from my iPhone using Tapatalk