The 4.6L Ford Modular engine (used in many vehicles, including the 2002 models) uses a
passenger-side-first numbering system. Looking at the engine from the front (the radiator side), the cylinders are numbered:
* 1-3-5-7 on the passenger side (right side)
* 2-4-6-8 on the driver's side (left side)
They are numbered sequentially from front to back on each side.