ah dam think you ran into the same problem i did last year sometime
there is a roughly 3inch small hose that runs directly underneath the inlet manifold, it joins 2 brass coolant pipes that i think go into the head
its a prick to get to, its a prick to change and its a prick that its happened
i got mine by jacking up the car and with a lot of time and effort got it off then a new hose back on
but if you not willing to try yourself, take to mech cause like i said its a prick of a position