Air is popping out of the engine and im losing power, why?

Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. Air popping out off the engine - sounds like a leak in the air intake system, like a PCV tube that is leaking or an air box air tube issue. Which engine is your F250 equipped with? It's too difficult to know whhat is going on without hands on testing, so i'd recommend seeking guidance at a shop near you. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!