Come to think of it. I don’t recall exactly what the issue was with the cam phaser other than the suppler to ford being the source of the bad phaser. I don’t know if it was a design issue, or a suppler manufacturing issue. @FordTechOne, was the cause of the issue discussed before?
It was actually a combination of both; the original design was prone to having the locking pin stick, which appears to have been the result of tolerance variation from the supplier. That is why not all 2017/2018 models will experience the issue. In order to resolve the issue in service and production, Ford redesigned the phaser with a more robust locking pin mechanism. F-150's received the new phaser design in 07/18, Expedition/Navigator received the new design in 04/19 (vehicle build dates).