I have a 2001 Honda Civic 4D, if that matters. I have noticed that it makes a strange noise every now and then, but of course when I take it to the mechanic to hear the noise it never sounds. I really don't know how to describe the noise...maybe..a type of whistle, but it is short and not high noise...almost like a low short sounded quick whistle. Yeah, call me crazy, but my friends have heard it, too. It maily happens during the time I am at a standstill or right when I press on the on the gas to go, which made me think it was maybe my brakes, but I really don't know. It probably has been going on for a year or two, but it seems to only come in the spring and summer, which made me think it was the air conditioner. Any input would be helpful. I just want to make sure it isn't anything serious. Like I said, I took it to the mechanic but the noise never came. Thanks ahead of time!My air conditioner works fine...