I have been in the process of trying to replace the passenger side valve cover gasket and trying to figure out how to loosen the front bolt that holds the coolant pipe above the exhaust manifold so that I can squeeze the valve cover out. Does anyone know what the bolt size is holding the coolant pipe in and what socket size I need as I cannot see the face of the bolt and it is really hard to get to. Is it possible to loosen the fuel rail and then pull the valve cover up and out instead.