Tools You'll Need:
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Lug wrench: To remove the wheels.
* Wheel chocks: To prevent the car from rolling.
* Socket wrench and sockets: You'll likely need various sizes, including those for caliper bolts and possibly for the brake caliper bracket bolts (depending on the year and model).
* C-clamp or brake caliper compression tool: To compress the caliper piston.
* Wrench for caliper bracket bolts (if applicable): Some models require removing the caliper bracket.
* New brake pads: Make sure you get the correct pads for your Grand Prix's year and model.
* Penetrating oil (PB Blaster, etc.): To help loosen rusted bolts.
* Gloves: To keep your hands clean.
* Safety glasses: To protect your eyes.
* Torque wrench: Crucial for tightening bolts to the correct specifications.
Steps:
1. Safety First: Park the car on a level surface, engage the parking brake, and use wheel chocks on the rear wheels. Jack up the front of the car and securely support it on jack stands.
2. Remove the Wheels: Remove the lug nuts and carefully take off the wheels.
3. Expose the Calipers: You should now see the brake calipers and rotors.
4. Compress the Caliper Piston: Using a C-clamp or compression tool, carefully compress the caliper piston. This creates space for the new, thicker brake pads. Be careful not to damage the piston seal. Some pistons rotate as they are compressed; consult your repair manual.
5. Remove the Brake Pads: Depending on your Grand Prix's model, you might need to remove caliper bracket bolts first. Generally, there are retaining clips or pins holding the brake pads in place. Remove these and carefully take out the old brake pads.
6. Install New Brake Pads: Insert the new brake pads into their respective locations. Make sure they slide freely.
7. Reinstall the Caliper (and Bracket if applicable): Reinstall the caliper and bracket (if removed). Tighten the bolts to the manufacturer's specified torque.
8. Reinstall the Wheels: Put the wheels back on and tighten the lug nuts. Don't fully tighten them yet.
9. Lower the Car: Carefully lower the car to the ground.
10. Torque Lug Nuts: Tighten the lug nuts to the manufacturer's specified torque using a torque wrench.
11. Test the Brakes: Carefully test the brakes by pumping the brake pedal several times. There should be firm resistance. If not, or if there is any unusual noise or vibration, recheck your work. Never rely solely on the parking brake for a safety stop.
12. Drive and Check: Drive the car cautiously and gently apply the brakes several times to bed in the new pads. Listen for any unusual sounds.
Important Considerations:
* Brake Fluid: While not directly involved in pad replacement, regularly checking and topping off brake fluid is important.
* Rotor Condition: Inspect the rotors for wear and tear. If they're excessively worn or scored, they may need to be resurfaced or replaced.
* Caliper Condition: Inspect the calipers for leaks, cracks, or sticking.
* Repair Manual: This is vital for specific instructions and torque specifications for your Grand Prix's year and model.
Disclaimer: This information is for general guidance only. If you are uncomfortable performing this task yourself, it's best to take your vehicle to a qualified mechanic. Incorrect brake repair can be dangerous.
