Someone will need to check to see if you have an upper end or lower end engine noise. Sounds like it could be in the valve train of the cylinder head, but only a trained ear can give you guidance and direction by listening to your noise first hand.
RepairPal Certified shops can diagnose and repair your 2011 Dodge Durango. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.