how to fix the brake pedal that goes to the floor in my Ford Explorer?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

598 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix a brake pedal that goes to the floor in your Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the brake system to cool before starting repairs.

Symptoms

•Brake pedal sinks to the floor when pressed
•Soft or spongy brake pedal feel
•Brake warning light illuminated on the dashboard
•Reduced braking effectiveness
•Possible fluid leaks under the vehicle

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, hoses, or around brake calipers and wheel cylinders.
3
Test the brake master cylinder for pressure using a brake pedal test.
4
Inspect brake pads and shoes for wear and proper installation.
5
Perform a vacuum test on the brake booster if equipped.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Wrench set
•Brake line wrench
•Socket set
•Torque wrench
•Brake bleeder kit or clear tubing

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake lines or hoses (if damaged)
•Master cylinder (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, hoses, or around brake calipers and wheel cylinders.
3
Test the brake master cylinder for pressure using a brake pedal test.
4
Inspect brake pads and shoes for wear and proper installation.
5
Perform a vacuum test on the brake booster if equipped.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Park the vehicle on a level surface and engage the parking brake.
Wear safety glasses and gloves for protection.

2. Check and Refill Brake Fluid

Open the master cylinder reservoir cap.
Inspect the brake fluid level; if low, refill with the manufacturer-recommended brake fluid (DOT 3 or DOT 4).
Replace the cap securely.

3. Inspect and Repair Leaks

Tools Required: Wrench set, brake line wrench
Examine all brake lines and hoses for signs of wear, corrosion, or leaks.
If any leaks are found, replace the damaged brake line or hose.
Tighten any loose connections and ensure secure fittings.

4. Replace the Master Cylinder (if necessary)

Tools Required: Socket set, brake line wrench, torque wrench
Disconnect the negative battery terminal to prevent electrical shorts.
Remove the brake lines from the master cylinder using a brake line wrench.
Unbolt the master cylinder from the brake booster.
Install the new master cylinder by reversing the removal process.
Torque the mounting bolts to the manufacturer's specifications (usually around 15-20 ft-lbs).

5. Bleed the Brake System

Tools Required: Brake bleeder kit or clear tubing, brake fluid
Start with the wheel farthest from the master cylinder (usually the right rear).
Attach the tubing to the bleeder screw, submerge 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 screw to release air and fluid, then close it before your assistant releases the pedal.
Repeat until no air bubbles appear and fluid runs clear.
Proceed to the other wheels in order: left rear, right front, left front.