Where is the number five cylinder on a 2006 Ford Escape engine?

A 2006 Ford Escape uses a V6 engine, not an inline engine with cylinders numbered 1-6 in a straight line. Therefore, there's no "number five cylinder" in the way you might think of it in an inline engine. V6 engines have cylinders arranged in a V-shape.

To locate a specific cylinder on a V6, you'll need a diagram of the engine and to refer to the firing order. The firing order will tell you the sequence in which the cylinders ignite. A repair manual or online resource specific to the 2006 Ford Escape's engine (usually a 3.0L Vulcan or a 4.0L Cologne, depending on the trim) will show you the cylinder numbering and placement.