To find coil pack location:
1. Identify your engine size: Check your vehicle's documentation or the engine bay itself.
2. Consult a repair manual or online diagrams: A repair manual specific to your 2001 Ford Expedition (with the correct engine size) will show you the location and numbering of the coil packs. You can also find diagrams online by searching for "[Your Engine Size] Ford Expedition Coil Pack Diagram." These diagrams often visually number the coil packs, making identification much easier.
3. Look for visual clues: Coil packs are typically located on top of the engine, directly above the spark plugs. They are usually black rectangular boxes.
Without knowing your engine size, it's impossible to give you a precise location for a hypothetical "coil pack 8".