Radiator smokes at upper hose to radiator
 

Hi, 2004 montana 202,000 miles, runs perfect.
I fill overflow tank to fill line. At stop it will smoke around the hose that connects to upper radiator will eventually empty overflow tank.is the hose at that particular spot worn I cant tell but the radiator does not leak any antifreeze. Anyone ever have this problem ? Thanks
https://cimg7.ibsrv.net/gimg/www.pon...e5b6b49eff.jpg
Everything works fine