Just bought my first “new to me” ecoboost equipped Raptor. 27 days into ownership....... had a terrible thrashing noise at startup. Service dept said needs phaser replacement and is currently in process of being replaced. My question is what is typical lifespan of these replacement phasers. Is there something I can do to prolong the life of this new set of phasers? Or is it a ticking time bomb waiting to happen all over again?