how to check brake fluid leaks on Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

635 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 check for brake fluid leaks in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps, tools required, and safety tips.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is on a flat surface and securely lifted before beginning work.
•Wear safety goggles and gloves to protect against brake fluid, which can damage paint and skin.

Symptoms

•Brake pedal feels spongy or sinks to the floor
•Brake warning light illuminated on the dashboard
•Visible fluid pooling under the vehicle
•Reduced braking effectiveness or increased stopping distance
•Fluid leaking from brake lines or components

Diagnostic Steps

1
Visual Inspection Under the Vehicle: Check for any signs of fluid pooling beneath the brake system components.
2
Check Brake Fluid Reservoir Level: Open the hood and check the brake fluid reservoir for low fluid levels.
3
Inspect Brake Lines and Hoses: Visually examine all brake lines and hoses for cracks, corrosion, or loose fittings.
4
Examine Brake Calipers: Look for signs of fluid leakage around the brake calipers.
5
Check Master Cylinder: Inspect the master cylinder for leaks around the seals and connections.
6
Test Brake Pedal: With the engine off, press the brake pedal firmly and hold it to see if it sinks over time, indicating a possible leak.

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

•Jack and jack stands
•Socket set
•Brake cleaner
•Clean rags
•Safety goggles
•Gloves

Parts Required

•Brake lines (if damaged)
•Brake calipers (if leaking)
•Master cylinder (if leaking)

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Diagnostic Steps

1
Visual Inspection Under the Vehicle: Check for any signs of fluid pooling beneath the brake system components.
2
Check Brake Fluid Reservoir Level: Open the hood and check the brake fluid reservoir for low fluid levels.
3
Inspect Brake Lines and Hoses: Visually examine all brake lines and hoses for cracks, corrosion, or loose fittings.
4
Examine Brake Calipers: Look for signs of fluid leakage around the brake calipers.
5
Check Master Cylinder: Inspect the master cylinder for leaks around the seals and connections.
6
Test Brake Pedal: With the engine off, press the brake pedal firmly and hold it to see if it sinks over time, indicating a possible leak.

Solution

1. Preparation

Tools Required:
- Jack and jack stands
- Socket set
- Brake cleaner
- Clean rags
- Safety goggles and gloves
Safety Warnings:
- Ensure the vehicle is on a flat surface and securely lifted before beginning work.
- Wear safety goggles and gloves to protect against brake fluid, which can damage paint and skin.

2. Locate the Leak

Sub-steps:
- Start with a thorough visual inspection of all brake components including lines, hoses, calipers, and the master cylinder.
- If necessary, use brake cleaner to clean areas around suspected leaks to improve visibility.
- Use a flashlight to illuminate hard-to-see areas.

3. Repair or Replace Affected Components

Sub-steps:
- If a brake line is leaking, use a socket set to disconnect the affected line and replace it with a new one, ensuring all fittings are tightened to manufacturer specifications (typically 15-20 ft-lbs).
- For leaking calipers, remove the caliper bolts with a socket set, detach the caliper, and replace it if necessary. Ensure to bleed the brakes after replacement.
- If the master cylinder is leaking, remove it by disconnecting the brake lines and unbolting it from the brake booster. Replace it with a new unit and ensure proper installation.

4. Refill and Bleed Brake System

Sub-steps:
- Refill the brake fluid reservoir with the recommended brake fluid (DOT 3 or DOT 4 depending on specification).
- Bleed the brake system to remove any air trapped in the lines, starting from the wheel farthest from the master cylinder to the nearest.