my Ford F-150 Fourteenth Generation (2021-present) has a hard brake pedal what’s the issue

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is on a flat surface and securely lifted if needed.
• Wear safety gloves and goggles.

2. Inspect and Replace Vacuum Hose

• Sub-steps:
  1. Locate the vacuum hose connected to the brake booster.
  2. Inspect for any cracks, wear, or disconnections.
  3. If damaged, remove the old vacuum hose by loosening the clamps with a screwdriver.
  4. Install the new vacuum hose and secure it with clamps.

3. Check and Replace Brake Booster

• Sub-steps:
  1. Disconnect the negative battery terminal to ensure safety.
  2. Remove the master cylinder by unscrewing the bolts and carefully pulling it away from the brake booster.
  3. Unbolt the brake booster from the firewall and disconnect the vacuum line.
  4. Install the new brake booster by reversing the removal steps, ensuring to torque bolts to manufacturer specifications (usually 15-20 ft-lbs).
  5. Reconnect the master cylinder and ensure proper alignment.

4. Refill Brake Fluid

• Sub-steps:
  1. Check the brake fluid level and refill it to the maximum line with the correct type of brake fluid (usually DOT 3 or DOT 4).
  2. Bleed the brake lines if necessary to remove any air pockets which can affect braking performance.