CVO 11/21/2010Under the hood, there is a vacuum hose diagram label.If it can't read, use a warm water with soap to clean.
Autozone.com has the sketchs for the vacuum diagrams for the car. Navigate to that site and take a look. Login_year of the car_enter" vacuum diagrams" in the product search box and click on the vehicule repair guides. Hope this helps and be safe. HAPPY HOLIDAYS.