My 2009 journey radiator recently created a leak somewhere. the over flow container is not cracked but The hoses are soft, if that means anything. When I fill the reservoir to its proper level and drive the car I can smell the antifreeze burning and see a large amount of smoke. Once the reservoir level goes down to 1/2 it stops leaking but still smell antifreeze burning and the smoke also stops. Could this be just a bad upper hose or could it be something more?