how to fix soft brake pedal issue in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

573 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 issue 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

•Ensure the vehicle is securely supported on jack stands before working underneath.
•Disconnect the battery when working on electrical components.

Symptoms

•Soft or spongy brake pedal feel
•Increased stopping distance
•Brake warning light illuminated on the dashboard
•Brake fluid leaks under the vehicle
•Air hissing sound when pressing the brake pedal

Diagnostic Steps

1
Inspect the brake fluid level in the master cylinder reservoir.
2
Check for any visible brake fluid leaks around brake lines, calipers, and the master cylinder.
3
Use an OBD-II scanner to check for any brake system-related error codes.
4
Inspect brake pads and rotors for wear or damage.
5
Perform a brake pedal test to feel for any inconsistencies in pressure.
6
Check the brake booster for vacuum leaks using a smoke test or visual inspection.

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

•OBD-II scanner
•Brake fluid
•Brake bleeder kit
•Wrench set
•Torque wrench
•Socket set

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake pads (if worn)
•Brake rotors (if damaged)
•Brake booster (if faulty)

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Diagnostic Steps

1
Inspect the brake fluid level in the master cylinder reservoir.
2
Check for any visible brake fluid leaks around brake lines, calipers, and the master cylinder.
3
Use an OBD-II scanner to check for any brake system-related error codes.
4
Inspect brake pads and rotors for wear or damage.
5
Perform a brake pedal test to feel for any inconsistencies in pressure.
6
Check the brake booster for vacuum leaks using a smoke test or visual inspection.

Solution

1. Preparation

Gather tools and parts needed.
Ensure the vehicle is parked on a level surface.
Engage the parking brake and wear safety glasses.

2. Check and Refill Brake Fluid

Tools Required: Brake fluid, funnel.
Remove the master cylinder cap.
Inspect the brake fluid level; if low, add the appropriate type (DOT 3 or DOT 4).
Replace the cap securely after refilling.

3. Bleed the Brake System

Tools Required: Brake bleeder kit, wrench, clear tubing, brake fluid.
Attach clear tubing to the bleeder valve on each brake caliper.
Have an assistant pump the brake pedal several times and hold it down.
Open the bleeder valve to release air and fluid until no bubbles appear.
Close the valve, then repeat for all calipers, starting from the farthest (right rear) to the nearest (left front).
Ensure the brake fluid reservoir remains full during this process.

4. Inspect and Replace Components (if necessary)

Tools Required: Socket set, torque wrench, new brake pads/rotors (if needed).
Remove the wheel to access the brake components.
Inspect brake pads for thickness and rotors for wear; replace if below specifications.
Reassemble components, ensuring to torque bolts to manufacturer specifications.

5. Check and Replace Brake Booster (if necessary)

Tools Required: Socket set, torque wrench, new brake booster.
Disconnect the vacuum hose from the brake booster.
Remove the master cylinder and unbolt the brake booster from the firewall.
Install the new booster and reverse the removal process.
Reconnect the vacuum hose and master cylinder.