how to fix the brake pedal going to the floor on my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

604 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 the brake pedal going to the floor in a 2011-2019 Ford Explorer. Step-by-step guide with symptoms 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 components.
•Brake fluid is corrosive; avoid contact with painted surfaces.

Symptoms

•Brake pedal sinks to the floor with little resistance
•Warning light illuminated on the dashboard
•Reduced braking effectiveness
•Brake fluid leaking under the vehicle
•Unusual sounds when braking (e.g., grinding or hissing)

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines and around the master cylinder.
3
Examine brake pads and rotors for wear and damage.
4
Bleed the brake system to remove air bubbles.
5
Test the master cylinder for proper function using a pressure gauge.

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

•Socket set
•Brake fluid
•Clear plastic tubing
•Container for old fluid
•Brake bleeder kit

Parts Required

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

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Solution

1. Preparation

Tools Required: Socket set, brake fluid, clear plastic tubing, container for old fluid, brake bleeder kit.
Ensure the vehicle is on a level surface and the parking brake is engaged.
Wear safety goggles and gloves to protect against brake fluid.

2. Inspect and Repair Leaks

Sub-steps:
1. Locate the master cylinder and inspect for leaks around it.
2. Check the brake lines from the master cylinder to each wheel for any signs of damage or corrosion.
3. If leaks are found, replace the damaged brake lines or the master cylinder as needed. Use a flare nut wrench for brake line connections to prevent damage.

3. Bleed the Brake System

Sub-steps:
1. Start at the wheel furthest from the master cylinder (usually the passenger rear).
2. Attach clear plastic tubing to the bleeder valve and place the other end in a container.
3. Open the bleeder valve and have an assistant press the brake pedal several times. Close the valve before they release the pedal.
4. Repeat until no air bubbles are observed in the tubing, then move to the next wheel (driver rear, passenger front, driver front).

4. Replace Master Cylinder (if required)

Sub-steps:
1. Disconnect the battery to prevent electrical issues.
2. Remove the brake lines from the master cylinder using a flare nut wrench.
3. Unbolt the master cylinder from the brake booster and carefully remove it.
4. Install the new master cylinder, torque bolts to manufacturer specifications.
5. Reconnect brake lines and ensure they are tight.

5. Refill and Test Brake Fluid

Sub-steps:
1. Fill the master cylinder reservoir with new brake fluid according to manufacturer specifications (DOT 3 or DOT 4).
2. Test the brake pedal for firmness. If it still sinks, repeat the bleeding process.