Firestrike87

When I turn the car off, there is a weird sound that I would like to get some opinions on. If anyone has any idea what it might be let me know. The sound seems to be coming from where the video is taken. The car seems to run fine but my brother noticed a sound when I shut the car off and I can't hear it from inside the car so I don't even know how long it has been doing it.
http://youtube.com/watch?v=QQ2MJsnJ0jE

wes ley n the G T

Definitely sounds like an air/vacuum sound. Not too sure of what specifically, I'll ponder this lol.

Nitti00GT

Sounds like the fan still spinning.

99_GT

It sounds like air, but what is the chunk at the end. Maybe a bearing going.

Firestrike87

What kind of bearing could be making that noise.

GhostRider02GT

sounds normal to me, every mustang I have heard does it. The vacuum created by your engine is trying to become in equilibrium with the atmospheric pressure, basically the lower manifold is still sucking in air to equalize the inside pressure with the outside pressure...

MU71L4710N

they all make that sort of wooshing sound when you turn the motor off thats normal. i dont know what that tapping type noise is though (unless its a farting noise...then its probably fine).

you should probably think about cleaning your engine bay...its hella dirty under there [:@]

Firestrike87

I just bought the car a month ago and now it's snowing so I'll give it a good spring cleaning. I'm just trying to get all the mechanical stuff out of the way first.

GhostRider02GT

sounds good to go to me...

Firestrike87

I do believe it is a vacuum leak because when I floor the gas pedal right after I shut the car off it doesn't make the noise.