oil leak on 2004 Dodge Durango

oil leaking from back of engine at top what could it be

Asked by for the 2004 Dodge Durango
Valve cover gasket or intake manifold gasket but it needs to be inspected by a shop to determine exactly what is leaking and you can locate a http://repairpal.com/directory?address=33993&car_brand_names=Dodgeshop here and once they determine what has failed you can check prices here http://repairpal.com/estimator?car_type_id=4192