my Toyota RAV4 is making a grinding noise when I brake, what could it be

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.
• Disconnect the negative battery terminal to prevent electrical issues.

2. Remove Wheel

• Use a jack to lift the vehicle and place it on jack stands.
• Loosen and remove the lug nuts using a socket set.
• Remove the wheel to access the braking components.

3. Inspect and Replace Brake Pads

• Remove the caliper by unscrewing the caliper bolts with a socket wrench.
• Carefully slide the caliper off the rotor and hang it using a bungee cord or similar tool to avoid strain on the brake line.
• Inspect brake pads for wear; they should not be less than 3mm thick.
• If worn, remove the old brake pads and replace them with new ones.
• Apply brake grease to the backing of the new pads to prevent squeaking.

4. Inspect and Replace Brake Rotors (if necessary)

• Check the rotors for any scoring or warping. If they are damaged, they should be replaced.
• Remove the rotor by unscrewing any retaining screws and sliding it off the hub.
• Install the new rotor, ensuring it is seated properly.

5. Reassemble Braking Components

• Reinstall the brake caliper over the new pads and rotor.
• Tighten the caliper bolts to the manufacturer's specified torque (usually around 25-30 ft-lbs).
• Reinstall the wheel and hand-tighten the lug nuts.

6. Lower the Vehicle and Final Checks

• Lower the vehicle back to the ground.
• Tighten the lug nuts to the specified torque (typically 75-85 ft-lbs).
• Reconnect the negative battery terminal.