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

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Wear safety goggles and gloves for protection.

2. Inspect and Repair Brake Fluid Leaks

• Sub-steps:
  1. Locate any visible leaks around the brake lines, hoses, and connections.
  2. If a leak is found, replace the damaged line or hose using a socket set and line wrenches.
  3. Tighten all connections to the manufacturer’s torque specifications.

3. Replace Brake Fluid

• Sub-steps:
  1. Remove the master cylinder cap and check the brake fluid condition.
  2. If the fluid is contaminated or low, perform a brake fluid flush.
  3. Use a brake bleeder kit to flush the system, ensuring all old fluid is removed.
  4. Fill the master cylinder with fresh brake fluid (DOT 3 or DOT 4, as specified in the owner's manual).

4. Check and Replace the Brake Master Cylinder (if necessary)

• Sub-steps:
  1. Disconnect the brake lines from the master cylinder using a line wrench.
  2. Unbolt the master cylinder from the brake booster using a socket set.
  3. Install the new master cylinder and tighten bolts to specified torque.
  4. Reconnect brake lines and bleed the brake system.

5. Inspect and Replace Brake Pads/Rotor (if necessary)

• Sub-steps:
  1. Remove the wheel and tire assembly using a lug wrench.
  2. Inspect brake pads for wear; replace if they are below manufacturer specifications.
  3. Check the rotors for warping or scoring; replace or resurface as needed.
  4. Reassemble the wheel and tire.