Tools and Materials Needed:
1. Jack and jack stands
2. Lug wrench
3. Socket set
4. Ratchet
5. Flathead screwdriver
6. Caliper spreader or C-clamp
7. Brake cleaner
8. Brake fluid (DOT 3 or DOT 4, as specified in the owner's manual)
9. New brake rotors
10.Brake grease
Step-by-Step Guide:
1. Park your vehicle: Park the Chevy Colorado on a level surface and engage the parking brake.
2. Loosen the lug nuts: Use the lug wrench to loosen the lug nuts on the wheels where you'll be replacing the rotors. Don't remove the lug nuts completely at this point.
3. Raise the vehicle: Place the jack under the appropriate part of the vehicle's frame and carefully lift it until the tire you'll be working on is off the ground. Make sure to use jack stands to support the vehicle securely before releasing the jack.
4. Remove the wheel: Remove the lug nuts completely and take off the wheel.
5. Remove the caliper: Locate the caliper, which is the part that holds the brake pads in place. Unbolt the caliper from its mounting bracket using the appropriate socket and ratchet. Be careful not to let the caliper hang freely; use a bungee cord or wire to support it.
6. Remove the old rotor: Once you've lifted the caliper, you should see the old brake rotor. Use a flathead screwdriver to pry open the brake pad retention springs while pressing the caliper piston back. Then, use the socket wrench to loosen and remove the caliper bracket bolts. You can finally remove the old brake rotor.
7. Inspect the rotor and hub: Carefully inspect the old rotor for any damage, cracks, or significant wear. Also, inspect the hub assembly to ensure it's clean and free from any rust or debris. If necessary, clean the hub with a wire brush.
8. Install the new brake rotor: Place the new brake rotor onto the hub. It should fit snugly. Remember to apply some brake grease to the hub to prevent rust and help with future rotor removal.
9. Reattach the brake caliper bracket: Reinstall the caliper bracket and secure it with the caliper bracket bolts. Tighten the bolts firmly, but not excessively.
10. Reattach the caliper: Reattach the caliper to its mounting bracket. Make sure it's properly seated and secured, then tighten the bolts accordingly.
11. Reinsert the brake pads: Now, you need to put the brake pads back in. If the old brake pads were still in good condition, you can reuse them unless the manufacturer specifies otherwise. If you're replacing them, make sure they're compatible with your vehicle and insert them into the caliper. If necessary, use a caliper spreader or C-clamp to compress the piston while reinserting the brake pads.
12. Bleed the brake system: When you've replaced both rotors and brake pads, you need to bleed the brake system to remove any trapped air. Consult the owner's manual for the proper bleeding procedure for your Chevy Colorado.
13. Reinstall the wheel: Once you're sure that the brake system is bled and functioning properly, you can reinstall the wheel and secure the lug nuts. Lower the vehicle using the jack and jack stands.
14. Test drive carefully: Before you resume regular driving, take the vehicle for a test drive at low speeds to ensure the brakes are functioning correctly.
Remember that brake service can be complex and crucial for your safety. If you're not confident in performing this task or encounter any unexpected difficulties, it's best to seek assistance from a qualified mechanic or refer to a specific repair manual for your Chevy Colorado model.
