my Toyota Corolla E170 (2013-2019) rear brakes are grinding what should I do

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

571 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 grinding noise in rear brakes of Toyota Corolla E170 (2013-2019). Step-by-step guide with tools and safety tips.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely supported on jack stands before working underneath.
•Allow the brakes to cool before handling components after driving.

Symptoms

•Grinding noise when braking
•Reduced braking efficiency
•Vibration or pulsation during braking
•Warning light on the dashboard (if equipped)
•Brake pedal feels soft or spongy

Diagnostic Steps

1
Inspect the rear brake pads for wear and damage.
2
Check the rear brake rotors for scoring or warping.
3
Examine the brake calipers for proper operation and leaks.
4
Assess the brake fluid level and condition in the reservoir.
5
Inspect the brake lines for any signs of wear or leaks.

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
•Lug wrench
•Socket set
•Torque wrench
•Bungee cord (for caliper suspension)

Parts Required

•New rear brake pads
•New brake rotors (if necessary)

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Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Wear safety glasses and gloves.

2. Raise the Vehicle

Use a jack to lift the rear of the vehicle off the ground.
Secure with jack stands for safety.

3. Remove the Wheel

Use a lug wrench to loosen and remove the rear wheel lug nuts.
Take off the wheel to access the brake components.

4. Remove the Brake Caliper

Locate the bolts securing the brake caliper and remove them using a socket wrench.
Carefully slide the caliper off the rotor and suspend it using a bungee cord to avoid strain on the brake line.

5. Inspect and Replace Brake Pads

Remove the old brake pads from the caliper bracket.
Inspect the caliper bracket for any debris and clean it if necessary.
Install the new brake pads, ensuring they are properly seated.

6. Inspect and Replace Brake Rotor (if necessary)

Check the condition of the rotor; if scored or warped, it should be replaced.
Remove the rotor by removing the retaining screws or bolts.
Install the new rotor, ensuring it is aligned properly.

7. Reinstall Brake Caliper

Position the caliper over the new brake pads and rotor.
Reinstall and tighten the caliper mounting bolts to the manufacturer's torque specifications.

8. Reinstall Wheel and Lower Vehicle

Place the wheel back onto the hub and hand-tighten the lug nuts.
Lower the vehicle and fully tighten the lug nuts in a star pattern for even pressure.

9. Test the Brakes

Before driving, pump the brake pedal several times to ensure the brake pads seat correctly against the rotors.
Check for any unusual noises or issues.