Hissing from near brake booster>>>WTF?
My fiance's car started hissing today near the brake booster. Maybe it has always done it, but I really don't think so, I very acutely listen to the noises cars make... So I was in a rush and haven't had time to look at it, but am flying out of town tomorrow afternoon... anyone had this problem? Sounded like a vacuum leak to me.
It makes the noise at all RPM's, but doesn't change much in tone or loudness- then upon pressing the brakes it hushes or goes away completely. It is rather loud in the cabin(at first i thought it was a vent obstruction)