1. Identify the Leak Source: Before anything else, carefully pinpoint exactly where the fluid is leaking from. Is it a cracked hose, a loose connection, or a problem with the pump itself? A flashlight and close inspection are key.
2. Prepare for Disassembly:
* Gather Tools: You'll likely need various tools depending on what you find. Expect to potentially need: screwdrivers (Phillips and flathead), pliers, wrenches (possibly socket wrenches), and possibly trim removal tools to avoid scratching plastic.
* Protect Yourself: Wear gloves to protect your hands and eye protection is always a good idea.
* Work Area: Work in a clean, well-lit area. Consider using jack stands to lift and support the vehicle for better access if needed (always consult your owner's manual for proper jacking points).
3. Accessing the Hose(s): The rear washer system typically runs from the reservoir, under the vehicle, and up to the nozzle on the tailgate. The leak near the passenger-side wheel well suggests the problem is somewhere in that undercarriage run. You may need to:
* Remove Wheel Well Liner (Partially or Fully): This is the most likely step. The wheel well liner is typically held in place by plastic fasteners, clips, and possibly screws. Carefully remove these to gain access to the hoses. Start by looking for obvious fasteners along the edges.
* Follow the Hose: Once the liner is partially removed, trace the rear washer hose from the area of the leak back towards the reservoir or nozzle. You might find that removing more of the liner is necessary for full access.
* Inspect Carefully: Look for cracks, kinks, or loose connections in the hose.
4. Repair or Replacement:
* Repair: If it's a small crack or loose connection, you may be able to repair it with some hose clamps, specialized hose repair tape, or by carefully splicing in a section of new hose (using hose clamps).
* Replacement: If the hose is severely damaged, it's best to replace the entire section from the leak point back to a convenient access point where you can connect a new piece.
5. Reassembly: Once you've made the repair, carefully reassemble everything, ensuring all fasteners are secure and the wheel well liner is properly reinstalled.
Important Considerations:
* Consult a Repair Manual: A repair manual specific to your 2000 Ford Expedition will be invaluable. It will provide diagrams and step-by-step instructions.
* Professional Help: If you are not comfortable working under your vehicle or are unsure of your repair abilities, it's always best to consult a professional mechanic.
Remember safety first! Always use jack stands if you lift your vehicle, and never work under a vehicle supported only by a jack. Take your time and be methodical in your inspection and repair.
