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504 Posts
Discussion Starter · #1 ·
2008 Civic Si Sedan

Okay, this morning is the first time I have ever heard this sound - VERY ABNORMAL!

So after starting my car in the cold cold morning, I was hearing a weird sound that is actually hard to describe.. but, I guess it can be described similar to the way very hard/fast winds sound against a window. The thing is, it's also intermittently - the wind sound every .2 seconds off for .1 seconds etc..

I heard it from inside, so I decided to pop open the hood etc and listen in from there. It sounded like it was coming from deep inside under the engine. Hard to pin-point.

After the car was warmed up to 3 bars, it went away.

Possible relevant information; Oil change 2 days ago.
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