Collapsed!

I Have A 1985 Buick Century With A 2.5 Litre 4 Cyl. I Have Noticed The Upper Radiator Hose Has Been Collapsing Lately I Have Good Heat New Thermostat Never Had The Prob Before Car Runs Fine!!!!any Help Would Be Greatly Appreciated!!!!!!!!!!!!!!!

Replace the hose and add coolant to the system. Replacing the thermostat is not a bad idea due if it has never been replaced. When hoses collapse it usually indicates that you are low on coolant. Also the hose has gotten soft and may fail shortly so replace it asap.

Thanks For Info I Just Put A New Head Gasket On And Replaced All Hoses And Thermostat Car Works Good Accept For That Prob. Thanks Again I Got Info From Ya Before Thanks Appreciate It