Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Inside of PCV valve fell into engine › Reply To: Inside of PCV valve fell into engine August 18, 2020 at 11:04 am #963122 Dave TidmanParticipant Just my opinion, but I would not run it until everything is either accounted for or ruled out. Solid things bouncing around the valve train can lead to disaster.