mazdamn
+1y
Its a hose. I can promise that. I have yet to see a maz blow out the back of the head. Not sayin its impossible, but those hoses leak more than anything. I ruined an engine from those damn hoses. Pull each one off, 1 at a time, and replace it. AND DO NOT FORGET THE ONE ON THE SMALL TUBE ACCROSS THE BACK OF THE HEAD THAT TURNS AND GOES UNDER THE INTAKE. ITS A LEAKER TOO.