i have taken the egr valve off my disco some while ago but i got thinking the other day how does it work or how is it meant to work, do the gases pass from the exhaust into the manifold or the other way around, if the former is the case how does it overcome the pressure generated by the turbo in the inlet manifold or is the pressure so high in the exhaust it can overcome it i somehow doubt that so how are they supposed to work.
engineer
engineer