Toyota Corolla E170 (2013-2019) brake pedal goes to the floor what's wrong

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface and securely raised on jack stands.
• Wear safety glasses and gloves for protection.

2. Check and Refill Brake Fluid

• Tools Required: Brake fluid, funnel
• Remove the cap from the brake fluid reservoir.
• Check the fluid level; if low, add the appropriate DOT brake fluid until it reaches the "full" mark.
• Replace the cap securely.

3. Inspect and Repair Brake Lines

• Tools Required: Wrench set, brake line wrench, rags
• Visually inspect all brake lines for cracks, corrosion, or leaks.
• If any leaks are found, mark the location for repair.
• Use a wrench to disconnect and replace damaged sections of brake line, ensuring to flare the ends properly and use new fittings.

4. Replace Brake Pads and Rotors (if necessary)

• Tools Required: Socket set, torque wrench, brake pad spreader
• Remove the wheel to access the brake components.
• Use a socket set to remove the caliper bolts and lift the caliper away from the rotor.
• Remove the old brake pads and inspect the rotors for wear.
• If rotors are below the minimum thickness or damaged, replace them.
• Install new brake pads and reattach the caliper, torquing bolts to manufacturer specifications.

5. Check Brake Booster and Vacuum Lines

• Tools Required: Vacuum gauge, multimeter
• Inspect the brake booster for any physical damage.
• Use a vacuum gauge to check if the booster is functioning properly.
• If the booster is defective, replace it, ensuring all connections are secure.