freefallin98

Guys, I really need to accurate help ASAP. After the mechanic had my car for nearly a week, it's still leaking. Its a very loud squeeling cound coming from somewhere near either header or the back of the block. It likes to do it when deceleration after a rev. My Ford mechanic thinks it gaskets and my exhaust guys thinks its something to do with the egr tube and the mechanic who installed thinks its a bad header. WTF

PaintballFreak

does it sound louder from the top of the motor or under the car?

ChalknCover

Could be the exhaust manifold (header) gasket. Is there anyway we could get a clip of this sound?

Mustang3GT07

Do you have longtubes or shorty headers on your car? It may be leaking at the collector.