If I have the engine at idle, press and release the brake pedal sharply, I can hear a whistle when the brake pedal releases, coming from the rubber seal into the servo. Also if I keep hitting the brakes the idle becomes erratic, all this means I have an air leak into this joint.
Question: How does this joint fit into the servo body, before I attempt to pull it apart, is it threaded or a push fit? Don't want to knacker it up and make it worse.
Paul
