Tools You'll Need:
* Jack and jack stands: Absolutely essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To prevent the car from rolling.
* Lug wrench: To remove the wheels.
* Socket wrench set (metric): You'll need various sizes, likely including 13mm, 15mm, and possibly others depending on your caliper.
* C-clamp or brake caliper compressor tool: This is crucial for compressing the caliper piston.
* Wrench or socket to fit caliper bolts (usually 15mm):
* Pliers: To remove the cotter pin (if applicable) and potentially help with brake pad retaining clips.
* Brake cleaner: To clean brake parts.
* New brake pads: Make sure you get the correct pads for your vehicle.
* Gloves: To keep your hands clean.
* Penetrating lubricant (like PB Blaster): Can help loosen stubborn bolts.
Steps:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Jack up the front of the car and securely support it on jack stands.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Expose the Caliper: You should now see the brake caliper and rotor.
4. Compress the Caliper Piston: This is where the C-clamp or caliper compressor tool comes in. You need to push the caliper piston back into the caliper to make room for the new, thicker brake pads. Be careful not to damage the piston or boot. Some pistons rotate as you push them in; consult a repair manual if unsure. Clean the piston and surrounding area with brake cleaner.
5. Remove the Brake Pads: Usually, there are retaining clips or pins holding the pads in place. Remove these to release the old pads.
6. Install the New Brake Pads: Carefully insert the new brake pads into their slots. Make sure they're seated correctly.
7. Reinstall the Caliper: Carefully put the caliper back over the brake pads and rotor, and secure it with the caliper bolts. Torque the bolts to the manufacturer's specifications (found in your owner's manual).
8. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts.
9. Repeat for the Other Side: Follow the same steps for the other front wheel.
10. Lower the Car: Carefully lower the car from the jack stands.
11. Pump the Brakes: Before driving, pump the brake pedal several times to ensure the pads make contact with the rotors.
12. Test Drive: Take a short test drive to check the brakes. If you feel anything unusual, have the brakes inspected by a mechanic.
Important Considerations:
* Rotor Inspection: While you have the wheels off, inspect the brake rotors for wear. They may need to be resurfaced or replaced.
* Brake Fluid: While unlikely to need it in this procedure, it's a good idea to check your brake fluid level.
* Torque Specifications: Always follow the torque specifications found in your owner's manual. Over-tightening can damage bolts and under-tightening can lead to loose parts.
* Caliper Slides: While replacing pads, visually inspect the caliper slide pins. If they're sticky or seized, they may need lubrication or replacement.
This is a simplified explanation. Refer to a repair manual specific to your 2005 Buick Park Avenue for detailed instructions and diagrams. Improper brake repair can be dangerous. If you have any doubts, seek professional help.
