1996 Pontiac Grand 96 3 1 6 Cyl Coolant Dripping Under Tension Pulley Looked

96 grand am 3.1 6 cyl ,coolant dripping under tension pulley,looked at motor at every possible no visable hoses leaking ,looked at gm 's part list and it shows a bypass hose somewhere behind the altenater , i looked and looked couldnt see any thing,cant even see the end of the heater core hose to see where it connects is it somewhere behind the alt. ,i just put a jar of bars stop leak in , i figured if its somekind of hidden bypass hose the stop leak wont work ,if its a intake manifold gasket it should slow down ,,