83 Fleetwood Brougham

My caddy is leaking antifreeze close to the firewall, but only after the thermostat opens. I changed one hose going to the heater core, but I can't see any other leaks when it is sitting there idling. Any suggestions?? Thanks :banghead:

You cannot see the source of the leak?, of course we cannot. Pressure test the system for a better diagnosis.

You cannot see the source of the leak?, of course we cannot. Pressure test the system for a better diagnosis.