Ford Explorer Fifth Generation (2011-2019) brake pedal goes to floor

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

681 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 Ford Explorer 2011-2019. Step-by-step guide with symptoms, diagnostic steps, 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 any electrical components.
•Allow brake components to cool

Symptoms

•Brake pedal feels spongy or goes to the floor without resistance
•Illuminated brake warning light on the dashboard
•Reduced braking effectiveness or prolonged stopping distance
•Unusual noise from brake components (grinding or squealing)
•Fluid leaks under the vehicle, particularly near the wheels or brake lines

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, hoses, and around wheel cylinders or calipers.
3
Scan the vehicle for any diagnostic trouble codes (DTCs) related to the brake system.
4
Examine the brake pads and rotors for wear or damage.
5
Test the brake booster for proper operation.
6
Inspect the brake master cylinder for internal failure or leaks.

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

•Brake fluid
•Funnel
•Wrench set
•Socket set
•Brake line wrenches
•Jack and jack stands
•Brake cleaner
•Brake bleeder kit
•Clear tubing
•Container for brake fluid

Parts Required

•Brake lines or hoses (if damaged)
•Brake master cylinder (if defective)
•Brake fluid

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Symptoms

•Brake pedal feels spongy or goes to the floor without resistance

•Illuminated brake warning light on the dashboard

•Reduced braking effectiveness or prolonged stopping distance

•Unusual noise from brake components (grinding or squealing)

•Fluid leaks under the vehicle, particularly near the wheels or brake lines

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, hoses, and around wheel cylinders or calipers.
3
Scan the vehicle for any diagnostic trouble codes (DTCs) related to the brake system.
4
Examine the brake pads and rotors for wear or damage.
5
Test the brake booster for proper operation.
6
Inspect the brake master cylinder for internal failure or leaks.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Park the vehicle on a level surface and engage the parking brake.
Place wheel chocks behind the rear tires for safety.
Wear safety gloves and goggles during the procedure.

2. Checking and Refilling Brake Fluid

Tools Required: Brake fluid, funnel
If the brake fluid level is low, refill it to the appropriate level with the recommended brake fluid type (DOT 3 or DOT 4).
Inspect for any visible leaks around the master cylinder and brake lines.

3. Repairing or Replacing Brake Components

Tools Required: Wrench set, socket set, brake line wrenches, jack and jack stands, brake cleaner
If leaks are found, replace damaged brake lines or hoses by:
- Loosening the fittings with brake line wrenches.
- Removing the faulty section of the line and replacing it with new line, ensuring proper routing.
- Torque new fittings to the manufacturer's specifications.
If the master cylinder is leaking or faulty:
- Remove the master cylinder by disconnecting the brake lines and unbolting it from the brake booster.
- Install the new master cylinder, ensuring all connections are tight and torqued properly.

4. Bleeding the Brake System

Tools Required: Brake bleeder kit, clear tubing, container
Begin at the wheel farthest from the master cylinder (usually the rear passenger side) and work towards the closest (front driver side).
Attach the tubing to the bleeder screw on the brake caliper and place the other end in a container.
Have an assistant press the brake pedal while you open the bleeder screw to allow air and fluid to escape. Close the screw before the pedal is released.
Repeat until no air bubbles are present in the fluid.

5. Final Inspection

Recheck all brake fluid levels and top off if necessary.
Inspect all replaced components for leaks after bleeding the brakes.
Ensure that the brake warning light is off and the pedal feels firm when pressed.