ok guys i have a 74-318 a/c challenger. fan switch new. when on low it runs fast,on fast runs slow, on the 2 middle settings it runs the same any idles??? tried switching wires on fan switch same result. is there another relay anywhere for the fan. bought classic car wiring diagram and its a piece of - rap does not show plugs or wrong plugs so you dont know were what wire gos were.im sorry the diagram is a good basic wire diagram so any help would be helpful thanks