When I am stopped for a long period of time or not moving very fast such as traffic I get wisps of smoke comeing out from under the hood from there the windshield wipers are hidden under the edge of the hood there. Any ideas of what that may be?? It almost appears to be blow by but I don't know from where though. Also when driving at night it also appears to be comeing from behind the headlights, the same source I believe. Well thoughts and ideas appreiciated.