Does A Fuel Pressure Regulator Need Vacuum?

Does A Fuel Pressure Regulator Need Vacuum?? Can a fuel pressure regulator cause a vacuum leak? As a rule, fuel system pressure should increase, 8 to 10 psi with the line disconnected. No change would indicate, a faulty pressure regulator, or a leaky or plugged vacuum line. As a result, this will cause a drop … Continue reading Does A Fuel Pressure Regulator Need Vacuum?