Where can you find cylinder 4 on 2006 Ford F-150 5.4 liter?

On a 2006 Ford F-150 5.4L engine, cylinder 4 is located on the passenger side (right side when facing the engine), towards the rear of the engine. It's not directly on the outside, but rather somewhat nestled within the engine block. You'll need to look carefully to locate the spark plug wire or injector for cylinder 4 to pinpoint its location precisely. A repair manual or a diagram specific to that engine would be very helpful in visualizing its position accurately.