It's going to have to go to the shop for a cooling system pressure test to locate the leak!!.. It's not a DIY deal..... Often we have to hoist vehicle then use inspection mirrors and video scopes to find these leaks with the system under pressure!... Then comes the actual repair!!
RepairPal Certified shops can diagnose and repair your 2009 Ford Edge. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.