Tools You'll Likely Need:
* Jack and jack stands (SAFETY FIRST: Always use jack stands, never rely solely on a jack.)
* Wheel chocks
* Lug wrench
* Socket wrench set (metric)
* Torque wrench
* Brake caliper compression tool (C-clamp can be used as a substitute, but a proper tool is recommended)
* Wire brush
* Brake cleaner
* New brake pads
* New rotors (recommended, but may not always be necessary)
* Possibly a caliper slide pin lubricant
General Steps:
1. Safety First: Park on a level surface, engage the parking brake firmly, and chock the rear wheels.
2. Jack Up and Support: Safely jack up the front of the car and securely place it on jack stands.
3. Remove Wheel: Remove the lug nuts and carefully remove the wheel.
4. Remove Caliper:
* Locate the caliper mounting bolts. These are usually on the back of the caliper.
* Use a socket wrench to carefully remove the bolts.
* Some calipers may have a slide pin that needs to be removed or loosened first.
* Carefully support the caliper with a wire or bungee cord to prevent it from hanging by the brake line. This prevents stress on the brake line.
5. Compress Pistons: Use a caliper compression tool to push the brake caliper pistons back into the caliper. This is necessary to create enough space for the new, thicker brake pads. Be careful not to damage the piston seals.
6. Remove Old Pads: Remove the old brake pads. They should slide out relatively easily.
7. Inspect Rotors: Inspect the brake rotors for wear, scoring, or excessive rust. If damaged, replace them. If they are in good condition, clean them thoroughly with a wire brush.
8. Install New Pads: Install the new brake pads, ensuring they are seated correctly.
9. Install Caliper: Carefully reinstall the caliper onto the mounting bracket. Ensure the caliper slides freely on its pins. If the pins are stiff, lubricate them with the appropriate lubricant. Tighten the mounting bolts to the manufacturer's specified torque.
10. Reinstall Wheel: Carefully reinstall the wheel and tighten the lug nuts. Do not overtighten.
11. Repeat: Repeat steps 4-10 for the other front wheel.
12. Lower Vehicle: Carefully lower the vehicle to the ground.
13. Torque Lug Nuts: Use a torque wrench to tighten the lug nuts to the manufacturer's specifications.
14. Pump Brakes: Before driving, pump the brake pedal several times to ensure the brakes are working properly.
15. Test Drive: Take a short test drive to verify that the brakes are functioning correctly.
Important Considerations:
* Bleeding Brakes: You might need to bleed the brakes after replacing the pads, particularly if you disconnected the brake lines. Consult a repair manual for proper bleeding procedures.
* Rotor Resurfacing: If the rotors are within tolerance but show minor wear, you can have them resurfaced at an auto parts store or machine shop.
* Parts Compatibility: Make absolutely certain you are purchasing the correct brake pads and rotors for your 1990 Pontiac 6000LE. There may be different specifications based on engine size and options.
Again, this is a general overview. Always refer to a repair manual specific to your vehicle for detailed instructions and torque specifications. Brake work is potentially dangerous; if you're uncomfortable performing this task yourself, seek professional help from a qualified mechanic.
