Here's a general outline. Specific details might vary slightly depending on your Expedition's trim level and options. Always consult your vehicle's repair manual for precise instructions and torque specifications.
Tools You'll Need:
* Jack and jack stands (Crucial for safety! Never work under a vehicle supported only by a jack.)
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Torque wrench
* Brake caliper piston compressor tool (C-clamp can sometimes work, but a dedicated tool is better)
* Wire brush or brake cleaner
* Anti-seize lubricant
* New brake rotors (ensure they're the correct size for your vehicle)
* New brake pads (highly recommended to replace these at the same time)
* Safety glasses
* Gloves
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks on the wheels opposite the one you're working on.
2. Remove the Wheel: Loosen the lug nuts slightly with the lug wrench before jacking up the vehicle. Jack up the vehicle and securely place it on jack stands. Remove the lug nuts completely and remove the wheel.
3. Remove the Caliper: Locate the caliper bolts holding the caliper to the knuckle. These are usually 14mm or 15mm. Unscrew them and carefully remove the caliper. Many people hang the caliper from the suspension using a wire or bungee cord to prevent it from dangling and damaging the brake line.
4. Compress the Caliper Piston: Using the piston compressor tool, slowly compress the caliper piston back into the caliper. This creates space for the new, thicker rotor. Brake fluid will be displaced, so be prepared for this – you might need to check and top off your brake fluid reservoir.
5. Remove the Old Rotor: Depending on the model, the rotor may be held on by screws or it might simply slide off once the caliper is removed. Some rotors might require removal with a puller. Carefully remove the old rotor.
6. Clean the Hub: Thoroughly clean the wheel hub using a wire brush and brake cleaner to remove any rust, debris, or old brake material.
7. Install the New Rotor: Carefully slide the new rotor onto the wheel studs, ensuring it seats properly.
8. Install the Caliper: Reinstall the caliper, making sure the caliper is properly seated and the bolts are tightened to the manufacturer's specified torque.
9. Install the Wheel: Install the wheel and tighten the lug nuts snugly, but don't fully tighten them yet.
10. Lower the Vehicle: Carefully lower the vehicle to the ground.
11. Torque the Lug Nuts: Fully tighten the lug nuts to the manufacturer's specified torque using a torque wrench.
12. Repeat on Other Wheels: Repeat steps 2-11 for the remaining wheels that require new rotors.
13. Check Brake Fluid Level: Top off the brake fluid reservoir as needed.
14. Test Drive: After installation, carefully test drive your vehicle to ensure the brakes are functioning properly. Listen for any unusual noises or vibrations.
Important Notes:
* Brake fluid is corrosive and can damage paint. Clean up any spills immediately.
* Always refer to your vehicle's repair manual for specific torque specifications and procedures. These instructions are a general guide only.
* Replacing brake rotors is a job that can affect your safety. If you are unsure of any step, do not attempt the repair yourself. Have it performed by a qualified professional mechanic.
By carefully following these steps and exercising caution, you can potentially replace your brake rotors yourself. Remember safety is paramount, and a professional's expertise is always a good option if you are uncertain.
