2007 4.6L Engine Noise

[artver]

I have a very loud noise coming from the passenger side of the engine when it is cold. The noise dissipates after about 20 to 30 seconds. It sounds almost like an exhaust leak but there is no leak at the manifold. Has anyone else experienced this issue?

 

[artver]

Disregard. A real mechanic found the exhaust leak at the manifold.