The contact owns a 2017 Ford F-150. The contact stated that when the vehicle was started, there was a loud rattling sound coming from the engine compartment. Additionally, while driving at various speeds, there was a loud noise coming from the engine compartment. The vehicle was not diagnosed or repaired; however, the mechanic observed the rattling sound and associated the sound with the cam phaser. The manufacturer was notified of the failure. The failure mileage was 60,000.