My 05 LGT occaisionally makes a "whoosh" sound upon start up. It seems to happen more in cold weather and immediately goes away when engine reaches operating RPM. What the heck is this? The car doesn't seem to feel any ill effects but for my own curiosity and sanity I'd like to know what's going on under that hood.
Mine seems more on the drivers side towards the firewall but not against it. Only does it every so often but enough to wonder if it's bad. I don't remember it happening before the VF52 upgrade so that could play into it. No noticeable air leeks and runs good. I'll eventually start replacing more stuff to eliminate it but it would be nice to have a starting point.