how to fix Toyota RAV4 Fourth Generation (2013-2018) if the brake pedal goes to the floor

Toyota RAV4 Fourth Generation (2013-2018)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

643 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 2013-2018 Toyota RAV4. 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 goggles and gloves when working on braking systems.
•Ensure the vehicle is securely lifted and supported before working underneath.

Symptoms

•Brake pedal feels soft and goes to the floor when pressed
•Warning light on the dashboard illuminated (if equipped)
•Reduced braking effectiveness or delayed response
•Possible fluid leaks under the vehicle
•Air hissing sound when pressing the brake pedal (in case of vacuum issues)

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible fluid leaks around brake lines, calipers, and wheel cylinders.
3
Inspect brake pads and rotors for wear and damage.
4
Test the brake booster for proper function by pressing the pedal with the engine off, then starting the engine and checking for a change in pedal firmness.
5
Scan for any fault codes using an OBD-II scanner related to the braking system.

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 fluid
•Funnel
•Clean rag
•Wrench set
•Brake line flaring tool
•Brake line replacement kit
•Jack and jack stands
•Socket set
•Torque wrench
•Brake bleeder kit
•Clear tubing
•Container to catch old fluid

Parts Required

•Brake fluid (DOT 3 or DOT 4)
•Brake lines (if damaged)
•Brake pads (if worn)
•Brake rotors (if worn)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible fluid leaks around brake lines, calipers, and wheel cylinders.
3
Inspect brake pads and rotors for wear and damage.
4
Test the brake booster for proper function by pressing the pedal with the engine off, then starting the engine and checking for a change in pedal firmness.
5
Scan for any fault codes using an OBD-II scanner related to the braking system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Wear safety goggles and gloves.

2. Check and Refill Brake Fluid

Tools Required: Brake fluid, funnel, clean rag
Inspect the master cylinder reservoir for low brake fluid.
If low, clean the cap and reservoir area to prevent contamination.
Use a funnel to carefully add the appropriate type of brake fluid (DOT 3 or DOT 4) to the reservoir.

3. Inspect and Repair Brake Lines

Tools Required: Wrench set, brake line flaring tool (if needed), brake line replacement kit
Inspect all brake lines for corrosion, cracks, or leaks.
If leaks are found, replace the damaged section of the brake line using the flaring tool to create new ends if necessary.
Ensure all connections are tight and secure.

4. Replace Brake Pads and Rotors (if necessary)

Tools Required: Jack and jack stands, socket set, torque wrench
Lift the vehicle and remove the wheels.
Inspect brake pads and rotors; replace if worn beyond specifications.
Reinstall new brake pads and rotors, ensuring to torque all bolts to manufacturer specifications.

5. Bleed Brake System

Tools Required: Brake bleeder kit, clear tubing, container to catch old fluid
Start at the wheel farthest from the master cylinder (typically the rear passenger side).
Attach the clear tubing to the bleeder valve and submerge the other end in a container.
Have an assistant press the brake pedal while you open the bleeder valve to release any trapped air until fluid runs clear.
Repeat at each wheel, moving closer to the master cylinder.
Check the brake fluid level frequently and top off as needed.