how to fix spongy brakes on 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

602 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 spongy brakes on 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 use jack stands when working under the vehicle.
•Allow the brakes to cool before performing any inspections or repairs.

Symptoms

•Brake pedal feels soft or sinks slowly to the floor
•Longer stopping distance than usual
•Brake warning light illuminated on the dashboard
•Fluid leaks visible under the vehicle
•Unusual noises when braking (e.g., grinding or squeaking)

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, calipers, and master cylinder.
3
Utilize an OBD-II scanner to check for any related error codes.
4
Perform a visual inspection of brake pads and rotors for wear.
5
Conduct a brake pedal test to assess firmness and response.
6
Inspect the brake booster for proper operation and vacuum 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

•Jack and jack stands
•Wrench set
•Brake fluid
•Brake bleeder kit
•OBD-II scanner

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake pads (if worn)
•Brake rotors (if worn)
•Brake calipers (if leaking)

Related Faults

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Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, calipers, and master cylinder.
3
Utilize an OBD-II scanner to check for any related error codes.
4
Perform a visual inspection of brake pads and rotors for wear.
5
Conduct a brake pedal test to assess firmness and response.
6
Inspect the brake booster for proper operation and vacuum leaks.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is on a level surface, and engage the parking brake.
Disconnect the negative battery terminal to prevent electrical issues.

Tools Required:

Jack and jack stands
Wrench set
Brake fluid
Brake bleeder kit
OBD-II scanner (if needed)

2. Inspect and Replace Brake Fluid

Sub-steps:
1. Check the brake fluid level in the master cylinder reservoir.
2. If low, top off with the manufacturer-recommended brake fluid (DOT 3 or DOT 4).
3. If the fluid is dirty or contaminated, proceed to flush the brake system.

3. Bleed the Brake System

Sub-steps:
1. Attach the brake bleeder kit to the bleed valve on the furthest brake caliper from the master cylinder (usually the right rear).
2. Have an assistant press the brake pedal while you open the bleed valve. Close the valve before they release the pedal.
3. Continue bleeding each wheel in order: right rear, left rear, right front, left front, until no air bubbles appear in the fluid.
4. Refill the master cylinder reservoir as necessary during the bleeding process.

4. Inspect and Replace Brake Components (if necessary)

Sub-steps:
1. If sponginess persists, inspect the brake pads and rotors for wear. Replace if necessary.
2. Check the brake calipers for proper function. Replace if leaking or damaged.
3. Inspect the master cylinder for failure. If it shows signs of leakage or internal failure, replace it.

5. Reassemble and Test

Sub-steps:
1. Reconnect the negative battery terminal.
2. Test the brake pedal for firmness before driving.
3. Conduct a test drive to ensure brakes function properly and feel firm.