how to fix the brake pedal going to the floor on 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

590 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, tools, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always allow the engine to cool before working on any components near the engine.
•Ensure the vehicle is properly supported on jack stands when working underneath.

Symptoms

•Brake pedal feels soft or spongy
•Warning light for the brake system illuminated
•Reduced braking power
•Fluid pooling under the vehicle
•No resistance when pressing the brake pedal

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, calipers, and wheel cylinders.
3
Use an OBD-II scanner to check for any related error codes.
4
Test the master cylinder by performing a brake pedal 'pump' test.
5
Inspect brake pads and rotors for wear or damage.
6
Bleed the brake system to remove any air trapped in the 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

•OBD-II scanner
•Brake line wrenches
•Torque wrench
•Brake bleeder kit
•Screwdrivers (flat and Phillips)
•Pliers

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Master cylinder (if replacement is needed)
•Brake lines or fittings (if leaks are found)

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 wheel cylinders.
3
Use an OBD-II scanner to check for any related error codes.
4
Test the master cylinder by performing a brake pedal 'pump' test.
5
Inspect brake pads and rotors for wear or damage.
6
Bleed the brake system to remove any air trapped in the lines.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and secure it with wheel chocks.
Disconnect the battery to avoid any electrical issues while working on the brake system.

2. Inspect and Repair Leaks

Sub-steps:
- Visually inspect all brake lines and connections for leaks.
- If leaks are found, replace damaged brake lines or components.
- Use a torque wrench to secure any connections to factory specifications (typically around 15-20 ft-lbs for brake line fittings).

3. Replace or Rebuild Master Cylinder (if necessary)

Sub-steps:
- Remove the brake lines from the master cylinder using a line wrench.
- Unbolt the master cylinder from the brake booster (typically 10-12 ft-lbs torque).
- Install the new master cylinder or rebuild the existing one.
- Reattach brake lines and ensure all fittings are tight.

4. Bleed the Brake System

Sub-steps:
- Fill the master cylinder with brake fluid (DOT 3 or DOT 4, as specified by the manufacturer).
- Start bleeding from the furthest brake caliper (usually the passenger side rear) and move towards the closest (driver side front).
- Use a brake bleeder kit or have an assistant pump the brake pedal while you open the bleeder screw.
- Tighten the bleeder screw before releasing the brake pedal to prevent air from re-entering.
- Repeat until no air bubbles are present in the fluid.

5. Final Assembly

Sub-steps:
- Recheck all connections and ensure the brake fluid reservoir is filled to the recommended level.
- Reconnect the battery.
- Test the brake pedal for firmness before taking the vehicle for a test drive.