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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

489 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 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

•Always wear safety goggles and gloves when working with brake fluid.
•Ensure the vehicle is securely lifted and supported with jack stands before working underneath.

Symptoms

•Brake pedal feels soft or spongy
•Brake warning light illuminated on the dashboard
•Reduced braking effectiveness or longer stopping distance
•Fluid leakage observed near wheels or under the vehicle
•Brake fluid reservoir low or empty

Diagnostic Steps

1
Inspect brake fluid reservoir for fluid level and condition.
2
Check for visible leaks around brake lines, calipers, and wheel cylinders.
3
Inspect brake pads and rotors for wear and proper installation.
4
Use a scan tool to check for any brake-related error codes.
5
Test brake booster for proper operation.
6
Pump the brake pedal to check for air in the brake lines.

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 bleeder kit
•Clear tubing
•Brake fluid
•Torque wrench

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake pads (if worn)
•Brake rotors (if necessary)
•Brake lines (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect brake fluid reservoir for fluid level and condition.
2
Check for visible leaks around brake lines, calipers, and wheel cylinders.
3
Inspect brake pads and rotors for wear and proper installation.
4
Use a scan tool to check for any brake-related error codes.
5
Test brake booster for proper operation.
6
Pump the brake pedal to check for air in the brake lines.

Solution

1. Preparation

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

2. Inspect and Replace Brake Fluid

Sub-steps:
1. Open the brake fluid reservoir cap.
2. If the fluid is low, fill it with the manufacturer-recommended brake fluid (DOT 3 or DOT 4).
3. If fluid is contaminated (dark or murky), proceed to flush the system.

3. Check for Leaks

Sub-steps:
1. Visually inspect brake lines from the master cylinder to the wheels for damage or corrosion.
2. Tighten any loose fittings and replace damaged lines or components.
3. Check brake calipers for leaks and replace if necessary.

4. Bleed Brake System

Sub-steps:
1. Start with the wheel farthest from the master cylinder (usually the right rear).
2. Attach a clear tube to the bleeder valve on the caliper and place the other end in a container.
3. Have an assistant pump the brake pedal several times and hold it down.
4. Open the bleeder valve to release air and old fluid, then close it before your assistant releases the brake pedal.
5. Repeat until clear fluid flows from the bleeder.
6. Move to the next wheel and repeat the process in the correct order (right rear, left rear, right front, left front).

5. Replace Brake Components (if necessary)

Sub-steps:
1. If brake pads are worn, remove the caliper using a socket set.
2. Replace pads with new ones and ensure they are properly seated.
3. If rotors are worn, remove and replace them according to the manufacturer’s specifications.

Tools Required:

Socket set
Brake bleeder kit
Clear tubing
Brake fluid
Torque wrench

Parts Required:

Brake fluid (DOT 3 or DOT 4)
Brake pads (if worn)
Brake rotors (if necessary)
Brake lines (if damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Always wear safety goggles and gloves when working with brake fluid.
Ensure the vehicle is securely lifted and supported with jack stands before working underneath.