Here's a general overview. This is NOT a comprehensive guide, and specific steps may vary slightly. Always consult a repair manual specific to your 2003 Oldsmobile Alero for detailed instructions and torque specifications.
Tools You'll Need:
* Jack and jack stands (Safety First: Never work under a car supported only by a jack)
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Wrenches (metric)
* Brake caliper piston compressor tool (essential!)
* C-clamp (can sometimes be used instead of a caliper piston compressor, but less convenient)
* Wire brush
* Brake cleaner
* New brake pads
* New rotors (likely needed, unless they're inspected and determined to be in good condition)
* Penetrating oil (like PB Blaster)
* Safety glasses
* Gloves
Steps (General):
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels.
2. Remove the Wheel: Loosen the lug nuts slightly with the lug wrench before jacking up the car. Jack up the front of the car and securely place it on jack stands. Remove the lug nuts completely and take off the wheel.
3. Remove the Caliper:
* Use a wrench to remove the caliper mounting bolts. These are usually on top of the caliper.
* Carefully remove the caliper from the rotor. Be prepared, as it will be heavy and will likely have brake fluid in the lines; avoid spilling it. You might need to tie it up out of the way with some wire to keep it from hanging by the brake line.
4. Remove the Brake Pads: The old brake pads should slide out easily after removing the caliper.
5. Inspect and Replace Rotors (if necessary): Check the rotors for scoring, grooves, or excessive wear. If they're damaged, replace them. If you're keeping the rotors, clean them with a wire brush to remove rust and debris.
6. Compress the Caliper Piston: This is CRUCIAL. The new brake pads will be thicker than the old ones, so you must compress the caliper piston to make room. Use the caliper piston compressor tool to push the piston back into the caliper. Be careful not to damage the piston or the rubber boot. As you push the piston in, you'll likely see brake fluid expelled from the master cylinder. Have a container ready to catch the excess fluid.
7. Install New Brake Pads: Insert the new brake pads into the caliper.
8. Reinstall the Caliper: Carefully mount the caliper back onto the rotor and secure it with the mounting bolts.
9. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts. Do not fully tighten them yet.
10. Repeat Steps 3-9 for the other front wheel.
11. Lower the Car: Carefully lower the car to the ground.
12. Tighten Lug Nuts: Fully tighten the lug nuts in a star pattern to ensure even pressure.
13. Pump the Brakes: Pump the brake pedal several times to build up brake pressure. You might need to pump them firmly a few times to make sure the pads are seated properly.
14. Check for Leaks: Inspect the brake lines and caliper for any leaks.
15. Test Drive: Take a short test drive to ensure the brakes are working correctly.
Important Considerations:
* Brake Fluid: You may need to add brake fluid to the master cylinder reservoir if the level has dropped significantly.
* Bleeding Brakes: While not always necessary after a pad replacement, if you experience a soft brake pedal or spongy feeling, you may need to bleed the brakes. This requires two people and a bleeder wrench.
* Rotor Thickness: Check your rotor thickness before installation. If they're too thin, they need replacing.
* Torque Specifications: Always refer to your repair manual for the proper torque specifications for the lug nuts and caliper mounting bolts. Over-tightening can damage components.
Remember, this is a simplified overview. Consult a repair manual specific to your 2003 Oldsmobile Alero for detailed, step-by-step instructions and safety precautions. Improper brake repair can be extremely dangerous. If you are unsure about any step, seek professional help.
