Where is the number 4 cylinder on a 2007 ford Eddie baur expedition?

The 2007 Ford Expedition Eddie Bauer, like most vehicles with a V8 engine, doesn't use a numbering system that goes 1, 2, 3, 4 in a straight line. The cylinders are arranged in a V-shape. Therefore, there's no single "number 4 cylinder" in the same way a 4-cylinder engine would have. You'd need a repair manual or a diagram specific to the Expedition's 4.6L or 5.4L V8 engine to identify which cylinder is considered #4 by the manufacturer's firing order. The firing order dictates the sequence in which the cylinders ignite.