Here's a breakdown of how to approach this, understanding that the exact procedure varies slightly depending on the year (even within 2000) and specific trim level:
1. Identify the Switch Type:
* Column-Mounted Lever: Some 2000 Expeditions had a lever on the steering column that controlled the overdrive. Replacing this would likely require replacing the entire shift lever assembly. This is a more involved process requiring mechanical skills and potentially specialized tools.
* Console-Mounted Button: Other models had a push-button switch in the center console. This might be easier to replace, but still requires some disassembly.
2. Diagnosis:
* Is it truly the switch? Before disassembling anything, ensure the problem is the switch itself, not a wiring issue, a problem with the transmission, or a faulty shift linkage. A mechanic can help diagnose this if you're not comfortable troubleshooting electrical or mechanical systems.
3. Part Acquisition:
* Part Number: Find the correct part number for your specific Expedition. You'll need your vehicle's VIN (Vehicle Identification Number) to accurately identify the correct part from a dealership, auto parts store, or online retailer. Using the wrong part will lead to further complications.
4. Replacement (General Steps):
This is a general outline, and the exact steps will vary significantly depending on whether your switch is column-mounted or console-mounted:
* Console-Mounted Button:
* Disconnect the battery: This is crucial to prevent electrical shorts.
* Remove the center console trim: This often involves removing screws, clips, and possibly some surrounding components. Consult a repair manual for your specific year and model.
* Unplug the electrical connector: Disconnect the connector from the switch.
* Remove the switch: This might involve unscrewing or unclipping the switch.
* Install the new switch: Connect the electrical connector and reinstall the switch. Reverse the removal steps to reassemble the console.
* Column-Mounted Lever:
* This is significantly more complex. It likely requires removing the steering column shrouds, potentially the steering wheel, and disconnecting various linkages and electrical components. This is best left to a professional mechanic unless you have extensive automotive experience.
5. Reconnecting the Battery:
Once everything is reassembled and you've tested the switch's function, reconnect the battery.
Important Considerations:
* Repair Manual: A repair manual specific to your 2000 Ford Expedition is highly recommended. It will provide detailed instructions and diagrams, saving you time and frustration.
* Professional Help: If you're not comfortable working on your vehicle's electrical or mechanical systems, it's best to have a qualified mechanic perform the repair. Improperly replacing the switch could cause further damage or safety hazards.
Replacing this switch isn't a simple task and often involves more than just swapping out a part. Proceed carefully and consider professional assistance if needed.