how to fix Honda Accord 9th Generation (2013-2017) if the brake pedal goes to the floor

Honda Accord 10th Generation (2018-2022)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

559 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 Honda Accord 9th Generation (2013-2017). 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 wear safety goggles and gloves when working with brake fluid, as it is corrosive.
•Ensure the vehicle is securely lifted and supported before working on the brakes.

Symptoms

•Brake pedal feels spongy or goes to the floor when pressed
•Reduced braking effectiveness
•Brake warning light illuminated on the dashboard
•Fluid leakage visible under the vehicle
•Unusual noises (e.g., grinding or squeaking) when braking

Diagnostic Steps

1
Check brake fluid level in the master cylinder reservoir.
2
Inspect for visible leaks in brake lines, hoses, or around the brake calipers.
3
Inspect the brake pads for wear and condition.
4
Perform a brake system bleed to check for air in the lines.
5
Test the master cylinder for proper function using a pressure gauge.

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

•Socket set
•Wrench set
•Brake fluid
•Turkey baster
•Brake bleeder kit
•Torque wrench

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake lines or hoses (if damaged)
•Brake pads (if worn)
•Master cylinder (if defective)

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Diagnostic Steps

1
Check brake fluid level in the master cylinder reservoir.
2
Inspect for visible leaks in brake lines, hoses, or around the brake calipers.
3
Inspect the brake pads for wear and condition.
4
Perform a brake system bleed to check for air in the lines.
5
Test the master cylinder for proper function using a pressure gauge.

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.

2. Inspect and Replace Brake Fluid

Sub-steps:
- Open the master cylinder reservoir cap.
- Check the brake fluid condition; if it's contaminated, replace it.
- Use a turkey baster to remove old fluid from the reservoir.
- Refill with the correct type of brake fluid (DOT 3 or DOT 4 as specified in the owner's manual).

3. Check and Repair Brake Lines

Sub-steps:
- Visually inspect all brake lines and hoses for cracks or corrosion.
- If leaks are found, replace the damaged sections of the brake line or hose.
- Use a flare nut wrench to disconnect and reconnect brake lines to avoid rounding off the fittings.

4. Bleed the Brake System

Sub-steps:
- Start from the wheel farthest from the master cylinder (usually the right rear).
- Attach a clear tube to the bleeder valve and submerge the other end in a container with brake fluid.
- Have an assistant pump the brake pedal several times and hold it down.
- Open the bleeder valve to allow air and fluid to escape, then close it before your assistant releases the pedal.
- Repeat until no air bubbles are present, then move to the next wheel.

5. Inspect and Replace Brake Pads

Sub-steps:
- Remove the wheel to access the brake caliper.
- Check brake pad thickness; replace if worn down to the indicator.
- Use a caliper tool to compress the caliper piston if replacing pads.
- Install new brake pads and reassemble the caliper.

6. Check and Replace the Master Cylinder (if necessary)

Sub-steps:
- Remove the master cylinder from the brake booster by disconnecting the brake lines and removing mounting bolts.
- Install the new master cylinder and reconnect the brake lines.
- Repeat the bleeding process after installation.

Tools Required:

Socket set
Wrench set
Brake fluid
Turkey baster
Brake bleeder kit
Torque wrench

Parts Required:

Brake fluid (DOT 3 or DOT 4)
Brake lines or hoses (if damaged)
Brake pads (if worn)
Master cylinder (if defective)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Always wear safety goggles and gloves when working with brake fluid, as it is corrosive.
Ensure the vehicle is securely lifted and supported before working on the brakes.