1. Loose Mirror:
* Problem: The mirror itself is loose and wobbles.
* Solution: This usually means the mounting bolts or clips have loosened. You'll likely need to:
* Access the mounting: This often involves removing the trim surrounding the mirror. This might involve prying carefully (use plastic trim tools to avoid scratching) or unscrewing small retaining screws or clips. Consult a repair manual or online forum specific to your Expedition model year for precise instructions.
* Tighten bolts/clips: Once you have access, tighten any loose bolts or re-seat any clips that hold the mirror in place. If the bolts are stripped, you might need replacements.
2. Broken Mounting:
* Problem: The plastic mounting bracket has broken or cracked.
* Solution: This is more serious. You likely need to:
* Find a replacement: You can try to find a used mirror assembly from a salvage yard or online parts retailer. New parts from Ford might be expensive.
* Repair (difficult): Attempting to repair a broken plastic mount is usually not recommended unless you have experience with plastics repair. It might not be strong enough after repair.
* Professional help: A body shop or auto glass specialist can likely replace the entire mirror assembly.
3. Electrical Issues (Auto-Dimming/Heated Mirror):
* Problem: The auto-dimming feature isn't working, or the heated mirror elements are not functioning.
* Solution: These problems are more complex.
* Check fuses: First, check the fuses in your Expedition's fuse box that relate to the rearview mirror. Your owner's manual will show you the fuse box layout and which fuses control what.
* Wiring: If the fuses are fine, the problem might be with the wiring harness. This requires electrical diagnostic skills to trace the wires and identify shorts or broken connections. This is a job best left to a qualified mechanic or electrician.
* Mirror Switch: The problem could be the switch itself on the mirror. This might be repairable or require replacement, which would likely necessitate getting a whole new mirror assembly.
4. Mirror Adjustment Problems:
* Problem: The mirror won't adjust properly.
* Solution:
* Check the adjustment mechanism: Inspect the internal mechanism of the mirror for any obstructions or broken parts. This usually requires removing the mirror to access it.
* Wiring (again): Similar to auto-dimming issues, faulty wiring could prevent adjustment.
Before You Start:
* Consult a repair manual: A repair manual specific to your 2003 Ford Expedition will provide detailed diagrams and instructions. You can find these online (often as PDFs) or at auto parts stores.
* Gather tools: You'll likely need screwdrivers (Phillips and flathead), possibly plastic trim tools, and potentially a socket set.
Important Note: If you're not comfortable working on your vehicle, it's best to take it to a qualified mechanic or auto glass specialist. Improper repair can lead to further damage.
