why is my Ford Mustang S650 (2024-Present) brake pedal going to the floor?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Brake Fluid

• Sub-steps:
  • Remove the brake fluid reservoir cap.
  • If low, top off with the appropriate brake fluid (DOT 3 or DOT 4 as specified in the owner's manual).
  • If the fluid is contaminated, proceed to replace the fluid.

3. Inspect Brake Lines and Components

• Sub-steps:
  • Visually inspect brake lines for any signs of leaks or damage.
  • Check the master cylinder for leaks; if leaking, replace the master cylinder.
  • If leaks are found, replace damaged brake lines or connections.

4. Bleed the Brake System

• Sub-steps:
  • Connect a brake bleeder kit or use a helper to press the brake pedal.
  • Starting from the wheel farthest from the master cylinder, open the bleeder valve and let fluid escape until clear fluid flows.
  • Close the valve and repeat for each wheel in the correct order (farther to nearest).

5. Test Brake Components

• Sub-steps:
  • Reinstall the reservoir cap and reconnect the battery.
  • Test the brake pedal by pressing it several times to ensure it feels firm.
  • Take the vehicle for a short test drive to verify proper braking function.

Tools Required:

• Brake bleeder kit
• Socket set
• Wrench set
• Brake fluid (DOT 3 or DOT 4)
• Vacuum gauge

Parts Required:

• Brake fluid
• Master cylinder (if leaking)
• Brake lines (if damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Always disconnect the battery before working on the brake system.
• Ensure the vehicle is securely lifted and supported when working under it.