I know 3 of them are resonator, PCV and brake actuator. What is the small one beside the PCV hose? It runs up under the manifold. The clip on the disconnect broke on mine and Ford is saying I need to replace the entire hose which will require me to remove the manifold and cost me over $600, just to fix a broken quick disconnect on the end of a hose. If that's the case p, it's pretty poor engineering. Wanted some input before I pull trigger and dump $600 to fix a part that should be less than $10. Or can I just cut the disconnect off hose and worm clamp it?