ok ford called me on friday and said that diagnostics came out fine and they are not sure what to think yet.. they need to put my stock air filter box back on so they can properly diagnose the problem???? soooo I took it in on monday to them.. they called me tonight saying that the IAC valve is bad and they want to clean the injectors and they want to get a new air filter box because i cut little holes in mine.. soo heres the pricing.. iac is 208 injector cleaning is 140 and the new air box is 260??? soooo Ill do the injector cleaning myself and I told them to just replace the iac valve and if I need i can get a used air box cheap off the website..... do you think any of these will actually cure the problem??????