why does my Ford Explorer's brake pedal feel spongy

Solution

1. Preparation

• Ensure the vehicle is on a level surface and secure with wheel chocks.
• Gather necessary tools and parts.
• Wear safety gloves and goggles.

2. Check and Replenish Brake Fluid

• Locate the master cylinder reservoir.
• Remove the cap and check the brake fluid level.
• If low, add the recommended DOT fluid (e.g., DOT 3 or DOT 4) to the correct level.
• Replace the cap securely.

3. Inspect and Replace Brake Lines (if necessary)

• If leaks or damage are detected in the brake lines:
  • Use a wrench to disconnect the affected line from the caliper and master cylinder.
  • Install a new brake line, ensuring proper routing and secure connections.
  • Torque connections to manufacturer's specifications (typically around 12-15 ft-lbs).

4. Bleed the Brake System

• Start at the wheel farthest from the master cylinder (usually the right rear):
  • Attach a clear plastic hose to the bleeder valve on the brake caliper.
  • Place the other end in a container with brake fluid.
  • Have an assistant pump the brake pedal several times, then hold it down.
  • Open the bleeder valve to let air and fluid escape, then close it before the assistant releases the pedal.
  • Repeat until no air bubbles appear in the fluid.
• Move to the next wheels in the following order: left rear, right front, and finally left front.

5. Test the Brake System

• Once all air has been bled out, check the brake fluid level again and top off if necessary.
• Test the brake pedal feel to ensure it is firm.
• Conduct a test drive to verify braking performance.