Chevrolet Aveo Engine Vacuum Leak

I Have A Vacuum Leak On My Chevy Aveo 2009 And That Car Doesn't Have A Pcv Valve How Can I Fix The Leak ?

Hi Good Morning. I Am Fernan And I Own A Chevy Aveo Hatchback 2009 Model. My Problem Starts When I Notice That The Idling Of My Car Seems...