Guys, do any of you have an idea what the hell is causing this noise at start up? it is a woo, woo, woo sound. It usually happens on cold days and the sound will last for about 30 seconds to a minute then it stops. It sounds like it is coming from the driver's side of the eng, 2005 Camry V6 3.0. I took it to the mechanic several times but every time he started the car it did not make the sound. Any help would be very much appreciated!!!!! Driving me nuts!!!!! Sorry the vid was larger than was permitted.