how to fix a soft brake pedal on Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

627 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 soft brake pedal on a 2011-2019 Ford Explorer. 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 handling brake fluid as it is corrosive.
•Always disconnect the battery before working on the electrical components of the braking system.
•Allow the vehicle to cool before working on the brakes to avoid burns.

Symptoms

•Soft or spongy brake pedal feel
•Longer stopping distances
•Brake warning light illuminated
•Brake fluid leaks under the vehicle
•Unusual noises when braking (squeaking or grinding)
•Brake pedal goes to the floor with minimal resistance

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible brake fluid leaks around brake lines, calipers, and wheel cylinders.
3
Examine brake pads and rotors for wear and damage.
4
Test brake booster operation by applying the brake pedal while the engine is off, then starting the engine and checking for a change in pedal feel.
5
Scan for any stored diagnostic trouble codes (DTCs) related to the braking system using an OBD-II scanner.
6
Inspect brake lines for corrosion or damage that could lead to air ingress or fluid 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
•Socket set
•Brake line wrench
•OBD-II scanner
•Vacuum bleeder
•Safety goggles
•Gloves

Parts Required

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

Related Faults

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Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible brake fluid leaks around brake lines, calipers, and wheel cylinders.
3
Examine brake pads and rotors for wear and damage.
4
Test brake booster operation by applying the brake pedal while the engine is off, then starting the engine and checking for a change in pedal feel.
5
Scan for any stored diagnostic trouble codes (DTCs) related to the braking system using an OBD-II scanner.
6
Inspect brake lines for corrosion or damage that could lead to air ingress or fluid leaks.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Tools Required: Brake fluid, socket set, brake line wrench, OBD-II scanner, vacuum bleeder, safety goggles, and gloves.
Safety Warnings: Always wear safety goggles and gloves when handling brake fluid as it is corrosive.

2. Address Brake Fluid Issues

Check and Refill Brake Fluid:
- Open the master cylinder reservoir cap and inspect fluid level.
- If low, add manufacturer-recommended brake fluid (usually DOT 3 or DOT 4).
Inspect for Leaks:
- Visually inspect all brake lines, calipers, and the master cylinder for signs of leaks.
- Repair any leaks found by replacing damaged components or tightening connections.

3. Bleed the Brake System

Prepare for Bleeding:
- Ensure the brake fluid reservoir is full.
- Gather a vacuum bleeder or a helper for the manual bleed method.
Bleed the Brakes:
- Start with the wheel farthest from the master cylinder (typically the rear passenger side).
- Attach the vacuum bleeder to the bleeder valve and open it while monitoring fluid flow. Close the valve when fluid flows without bubbles.
- Repeat for each wheel in the order: rear passenger, rear driver, front passenger, front driver.
- Ensure the master cylinder does not run dry during this process.

4. Inspect and Replace Brake Components

Brake Pad and Rotor Inspection:
- Remove the wheel and inspect brake pads and rotors for wear.
- Replace pads if thickness is less than 3mm and rotors if they are below minimum thickness or warped.
Replace any Worn Components:
- Remove calipers and replace pads and rotors as necessary, ensuring to torque bolts to manufacturer specifications.