Tools You'll Need:
* Jack and jack stands: Essential for safely lifting the vehicle. Never work under a vehicle supported only by a jack.
* Lug wrench: To remove the wheels.
* Wheel chocks: To secure the vehicle on the ground.
* Socket wrench set (metric): Various sizes will be needed.
* Wrench set (metric): For caliper bolts and other fasteners.
* C-clamp or brake caliper compression tool: To compress the caliper piston.
* Pliers: For removing brake lines and clips.
* Brake cleaner: To clean brake components.
* New brake pads: Make sure you get the correct pads for your Expedition.
* New rotors (optional but recommended): If your rotors are scored or warped, you should replace them.
* Torque wrench: To properly tighten bolts to prevent damage.
* Gloves: Protect your hands.
* Safety glasses: Protect your eyes from debris.
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Raise the front of the vehicle using the jack and securely support it with jack stands.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Remove the Caliper:
* Locate the caliper mounting bolts. These are usually on the back of the caliper.
* Use the appropriate wrench to remove the bolts.
* Carefully support the caliper with one hand as you remove the bolts to prevent it from dangling and potentially damaging the brake line.
* Carefully hang the caliper using a piece of wire or bungee cord to prevent it from straining the brake hose. Do not let the caliper hang by the brake hose.
4. Compress the Caliper Piston: Using a C-clamp or brake caliper compression tool, carefully compress the caliper piston to make room for the new, thicker brake pads. You may need to turn the piston while compressing it. *Be careful not to damage the piston or the dust boot.*
5. Remove the Old Brake Pads: The old brake pads should slide out relatively easily.
6. Install New Rotors (if replacing): If you're replacing the rotors, carefully remove the old rotors. Make sure the new rotors are properly seated on the wheel studs.
7. Install New Brake Pads: Install the new brake pads into the caliper bracket.
8. Install the Caliper: Carefully install the caliper back onto the caliper bracket. Tighten the mounting bolts to the manufacturer's specified torque.
9. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts. Do not fully tighten them yet.
10. Lower the Vehicle: Carefully lower the vehicle to the ground.
11. Torque Lug Nuts: Once the vehicle is on the ground, fully tighten the lug nuts to the manufacturer's specified torque.
12. Repeat Steps 3-11 for the other wheel.
13. Pump the Brakes: Before driving, pump the brake pedal several times to build up pressure and ensure the brakes are working correctly.
14. Test Drive: Take a short test drive to verify the brakes are functioning properly.
Important Notes:
* Bleeding the Brakes: If you've worked on the brake system, you may need to bleed the brakes to remove any air bubbles that may have entered the lines. This requires a second person and a bleeder kit. Consult your repair manual for instructions.
* ABS Systems: If your Expedition has an Anti-lock Braking System (ABS), be extra cautious during the repair, and consult a repair manual before attempting the job. ABS systems can be complex.
* Brake Fluid: Brake fluid is corrosive. If you spill any, clean it up immediately.
This is a general guide, and specific details may vary. Always refer to a repair manual specific to your 1997 Ford Expedition for detailed instructions and torque specifications. If you are not comfortable performing this repair yourself, it is best to take your vehicle to a qualified mechanic.
