I have a 90 420sel. There is a hose that goes in the top of the valve cover over to the idle control valve. The hose is in an approx. 90 degree angle when it leaves the valve cover and is about 3/4 or 1 inch in diameter at the valve cover and runs down to about 1/2 inch. Can anyone tell me what this would be called if I had to ask for one? Mine has a crack in it and needs to be replaced. Thanks for any help.