strange noise coming from car
 

I have a 2004.5 s40 2.4i. Recently, there has been a strange noise coming from the car. It kind of sounds like a dog barking. It's quiet, but it will make the noise twice then stop for a bit. There doesn't seem to be any specific time that it happens, but it sounds to me like it's coming from the front of the car. I can't quite pinpoint where it comes from. Anybody have any ideas? It's under warranty, but I just wanted to see if you guys had any ideas before I take it in.

Thanks!

RE: strange noise coming from car
 

Does anything else happen when the noise happens?

RE: strange noise coming from car
 

No, nothing happens. I did some further testing. Everything shut off..no radio, no AC, all windows up. It seems to me that the noise occurs when there is a shift in the cars momentum, either accelerating or braking. It doesn't sound like metal grinding. Usually happens twice in succession, sometimes 3 times, sometimes once. Almost like something is rubbing. And it seems to be coming from behind the dashboard. Doesn't really sound likes it's from the engine, but closer to me.

RE: strange noise coming from car
 

There might be something in the dash that isn't secured all the way.

RE: strange noise coming from car
 

after more testing now...the noise is the same noise that happens when I switch the air from blowing at my head to feet or mid-section. This noise is really loud when I do this, and it makes the noise periodically while driving. Not sure of the mechanics of this system. Tech, do you know more about this system?

Thanks!

RE: strange noise coming from car
 

Could be a bad blend door motor.