Where is 2 cyl on a 2003 5.4 engine?

A 2003 5.4L Ford Triton engine is a V8, not a 2-cylinder engine. Therefore, there isn't a "cylinder 2" in the same way a 2-cylinder engine would have. The 5.4L has eight cylinders arranged in a V-shape.

To understand cylinder numbering on a 5.4L Triton V8, you'll need a diagram or a shop manual specific to that engine. Cylinder numbering varies slightly depending on the exact application (truck, SUV, etc.) The numbers usually start on one side of the V and progress sequentially across the engine.