why does my Ford Explorer Fifth Generation (2011-2019) have a soft brake pedal

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

523 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 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

•Always wear safety glasses when working with brake fluid, as it can damage paint and skin.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Soft or spongy brake pedal feel
•Increased stopping distance
•Brake warning light illuminated on the dashboard
•Brake fluid leaks observed under the vehicle
•Air hissing sound when the brake pedal is pressed
•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 leaks in brake lines and around the wheel cylinders or calipers.
3
Use a brake bleeder kit to check for air in the brake lines.
4
Examine the condition of the brake pads and rotors.
5
Inspect the brake booster for proper operation and any signs of failure.
6
Scan the vehicle for any ABS-related trouble codes using an OBD-II scanner.

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 bleeder kit
•Wrench set
•Fluid catch pan

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake pads (if worn)
•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 leaks in brake lines and around the wheel cylinders or calipers.
3
Use a brake bleeder kit to check for air in the brake lines.
4
Examine the condition of the brake pads and rotors.
5
Inspect the brake booster for proper operation and any signs of failure.
6
Scan the vehicle for any ABS-related trouble codes using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Engage the parking brake.

2. Check and Refill Brake Fluid

Sub-steps:
1. Open the hood and locate the brake master cylinder.
2. Check the brake fluid level; if low, add the recommended brake fluid (DOT 3 or DOT 4).
3. Close the master cylinder cap securely.

3. Bleed the Brake System

Tools Required: Brake bleeder kit, wrench
Sub-steps:
1. Start at the wheel furthest from the master cylinder (usually the passenger side rear).
2. Attach the bleeder hose to the brake bleeder valve on the caliper.
3. Have an assistant press the brake pedal while you open the valve to release air and fluid.
4. Close the valve before your assistant releases the pedal.
5. Repeat the process until no air bubbles are present, then proceed to the next wheel (driver side rear, passenger side front, driver side front).
6. Ensure fluid levels are maintained during the bleeding process.

4. Inspect and Replace Components if Necessary

Sub-steps:
1. Inspect brake pads and rotors for wear; replace if necessary.
2. Check brake lines and hoses for any signs of damage or wear.
3. If the brake booster is faulty, disconnect the vacuum line and replace the brake booster.