POSITIVE CRANKCASE VENTILATION VALVE FUNCTION [AJ (3.0L Duratec)]

BUE011613890N07

• Adjusts the amount of blowby gas conducted to the intake air system according to the intake manifold vacuum.

• Regulates the air (including blowby gas) passing from the cylinder head cover to the intake manifold during low load (when the intake manifold vacuum is high) to ensure an optimum air/fuel ratio.