Thank you for this explanation. Ok. So. The cap on the overflow is leaking and running down that line that goes to the back of the firewall. Then dripping onto the manifold and steaming off if that. There is no radiator cap. Only this cap iff the over dlow where the fluid is added. Different system than lve ever has before. But. Feom everything lm reading it sounds like this cap cant leak. It must seal. And then it will allow the system to operate correctly. Is this true