my Ford F-150 14th Generation (2021-2024) has a leak near the master cylinder what's wrong

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Wear gloves and safety goggles for protection.

2. Remove the Master Cylinder

• Tools Required: Socket set, wrench set, brake line wrench.
• Carefully disconnect the negative battery terminal to prevent electrical issues.
• Remove the brake fluid reservoir cap and clean the area to prevent contamination.
• Disconnect the brake lines from the master cylinder using a brake line wrench.
• Remove the mounting bolts securing the master cylinder to the brake booster.
• Carefully lift the master cylinder away from the brake booster.

3. Inspect and Repair

• Check the master cylinder for any cracks or damage.
• If damaged, replace the master cylinder with a new unit.
• Inspect the brake lines for corrosion or leaks; replace if necessary.
• Replace any worn or damaged seals or grommets.

4. Reinstall the Master Cylinder

• Place the new or repaired master cylinder back onto the brake booster.
• Secure it with the mounting bolts, tightening to the manufacturer’s torque specifications (typically around 15-20 ft-lbs).
• Reconnect the brake lines, ensuring a snug fit to prevent leaks.
• Refill the master cylinder with fresh brake fluid (DOT 3 or DOT 4, as specified by the manufacturer).

5. Final Checks

• Reconnect the negative battery terminal.
• Bleed the brake system to remove air from the lines.
• Test the brake pedal for firmness before taking the vehicle for a test drive.