To find the correct wire layout for *your* Explorer:
1. Consult your owner's manual: The best source of information is your vehicle's owner's manual. It should have a diagram showing the proper plug wire routing.
2. Look at the engine: Carefully examine the engine. The spark plug wires are usually color-coded or have numbers stamped on them. Trace each wire from the distributor cap (if it has one) or coil pack to its corresponding spark plug. You may need a flashlight and possibly a mirror.
3. Use a Ford service manual: A Ford service manual (available online or from auto parts stores) will have detailed diagrams and specifications for your specific year and engine. This is the next best option if your owner's manual is unavailable or unclear.
Important Note: Incorrect spark plug wire routing can lead to misfires, poor performance, and engine damage. If you're unsure, it's best to consult a professional mechanic. Don't guess!