Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello and welcome! My name is ***** ***** I can assist you with your question. It sounds like this noise is coming from the serpentine belt or one of the pullies under the hood. I would start by checking the serpentine belt and tensioner to ensure it is holding proper pressure on the belt. If not, replace the belt and tensioner. Some other pullies to check are the AC compressor, alternator and water pump.
Hi JA customer
from experience the sound you are hearing is caused by an exhaust leak, check the passenger side manifold and you will find the bolts have broken and the noise is caused by the gasket acting like a reed instrument when the exhaust passes by it. to repair you will need to have the broken bolts removed and replace the bolts and gasket.