how to fix the Ford Explorer Sixth Generation (2020-present) brake pedal going to the floor?

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

710 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 2020-present Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery when working on the vehicle’s electrical system.
•Allow the vehicle's brakes to cool down before working on them to avoid burns.

Symptoms

•Brake pedal sinks to the floor when pressed
•Reduced braking effectiveness
•Brake warning light illuminated on the dashboard
•Fluid leak under the vehicle near the wheels or master cylinder
•Increased stopping distance

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for any visible leaks in the brake lines, hoses, and around the master cylinder.
3
Use a brake fluid tester to check for contamination or moisture in the brake fluid.
4
Inspect the brake pads and rotors for wear or damage.
5
Perform a vacuum bleed on the brake system to check for air in the lines.
6
Test the brake booster for proper operation.

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 tester
•Brake bleeder kit
•Wrench set
•Socket set
•Torque wrench
•Jack and jack stands

Parts Required

•Brake fluid (specific to Ford specifications)
•Brake lines (if damaged)
•Brake pads and rotors (if worn)

Related Faults

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Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for any visible leaks in the brake lines, hoses, and around the master cylinder.
3
Use a brake fluid tester to check for contamination or moisture in the brake fluid.
4
Inspect the brake pads and rotors for wear or damage.
5
Perform a vacuum bleed on the brake system to check for air in the lines.
6
Test the brake booster for proper operation.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and set the parking brake.
Wear safety goggles and gloves.

2. Inspect and Replace Brake Fluid

Tools Required: Brake fluid tester, clean rags, funnel.
Check the master cylinder reservoir; if the fluid is low, top it up with the manufacturer's recommended brake fluid type.
If contaminated, drain the old brake fluid:
- Locate the brake fluid drain screw on the master cylinder.
- Use a clean rag to catch any spills and remove the reservoir cap.
- Allow fluid to drain completely, then replace with new fluid.

3. Check and Repair Leaks

Tools Required: Wrench set, brake line repair kit (if necessary).
Visually inspect all brake lines and connections for leaks.
Tighten any loose connections.
If any brake line is damaged, cut out the damaged section using a pipe cutter, then install a new section of brake line using a brake line repair kit.

4. Bleed the Brake System

Tools Required: Brake bleeder kit, clear tubing, container for old brake fluid.
Start with the brake furthest from the master cylinder (usually the rear right).
Attach clear tubing to the bleeder valve on the brake caliper and place the other end in a container.
Have an assistant pump the brake pedal several times, then hold it down.
Open the bleeder valve to let fluid and air escape, then close it before the assistant releases the pedal.
Repeat this process until no air bubbles are present in the fluid.
Proceed to the next brake caliper following the same order (rear left, front right, front left).

5. Inspect and Replace Brake Components

Tools Required: Jack and jack stands, socket set, torque wrench.
Remove the wheel to access the brake assembly.
Inspect brake pads and rotors for excessive wear; replace if necessary.
For brake pads, remove the caliper and replace using the following:
- Remove caliper mounting bolts.
- Slide the caliper off the rotor.
- Replace the old pads with new ones, ensuring they are correctly positioned.
- Reinstall the caliper and torque the bolts to manufacturer specifications.