Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Weird noise? 2018 Ford Fiesta St Line › Reply To: Weird noise? 2018 Ford Fiesta St Line January 31, 2021 at 11:14 am #988501 Richard KirshyParticipant Sounds like possibly either valve train or crank shaft noise. Could be due to low oil level or low oil pressure. Just a guess… always tough to diagnose a sound from video.