This guide outlines the general process; specific details might vary slightly depending on the trim level and options. Always consult a repair manual specific to your 1998 Pontiac Grand Am for precise instructions and torque specifications.
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 secure the car.
* Lug wrench: To remove the wheels.
* Socket set and wrenches: Various sizes will be needed.
* C-clamp or brake caliper compressor: To compress the caliper piston.
* Brake cleaner: To clean brake parts.
* Penetrating lubricant (PB Blaster or similar): To help loosen rusted bolts.
* New brake pads and rotors (or drums, depending on your model): Get the correct parts for your Grand Am. Front and rear brakes are often different.
* Safety glasses and gloves: Protect yourself.
* Torque wrench: Crucial for tightening bolts to the correct specification.
Steps (for disc brakes, typically found on the front):
1. Safety First: Park on a level surface, engage the parking brake, and chock the wheels. Jack up the car and securely place it on jack stands.
2. Remove the Wheel: Remove the lug nuts and carefully take off the wheel.
3. Remove the Caliper:
* Locate the caliper mounting bolts. They're usually on the back of the caliper.
* Use penetrating lubricant if necessary.
* Unscrew the bolts and carefully remove the caliper. You might need to support the caliper with a wire or bungee cord to prevent it from hanging by the brake line.
4. Compress the Caliper Piston:
* Use a C-clamp or caliper compressor tool to slowly push the piston back into the caliper. This creates space for the new, thicker brake pads. Be careful not to damage the piston seal. Some pistons turn as they are compressed; others require a specific tool.
5. Remove the Old Brake Pads:
* The old brake pads should now be easily removed from the caliper.
6. Install the New Brake Pads:
* Install the new brake pads into the caliper.
7. Install the Caliper:
* Carefully reinstall the caliper onto the brake caliper bracket. Make sure the caliper slides freely.
* Tighten the mounting bolts to the manufacturer's specified torque.
8. Inspect and Replace Rotors (if necessary):
* Check the rotors for scoring, excessive wear, or warping. If they're damaged, replace them. Rotor replacement involves removing the rotor mounting bolts and carefully sliding it off the wheel hub.
9. Reinstall the Wheel:
* Reinstall the wheel and tighten the lug nuts to the manufacturer's specified torque. Do this in a star pattern to ensure even tightening.
10. Repeat for the Other Side: Repeat steps 2-9 for the other front wheel.
Steps for Rear Brakes (Drum Brakes are more common on the rear):
Rear brake replacement is more involved and requires different tools (drum brake wrench, etc.). This is often best left to a professional unless you have experience with drum brakes. The general steps include:
1. Remove the Wheel.
2. Remove the Drum: Often requires a drum brake wrench or similar tool.
3. Remove the Old Brake Shoes:
4. Install the New Brake Shoes:
5. Adjust the Brake Shoes: This is crucial for proper braking.
6. Reinstall the Drum.
7. Reinstall the Wheel.
Important Considerations:
* Bleeding the Brakes: After replacing the brakes, you'll likely need to bleed the brakes to remove air from the brake lines. This requires a helper and a bleeder wrench.
* Torque Specifications: Always use a torque wrench and consult your repair manual for the correct torque values for all bolts. Over-tightening can damage parts.
* Professional Help: If you're unsure about any step, seek professional help. Brake failure can be catastrophic.
This is a general overview. Consult a repair manual specific to your 1998 Pontiac Grand Am for detailed instructions, diagrams, and torque specifications. Remember, safety is paramount. If you're uncomfortable with any part of this process, take your car to a qualified mechanic.
