my Toyota Corolla E170 (2013-2019) makes a grinding noise when I brake what's wrong

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

499 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 when braking in Toyota Corolla E170 (2013-2019). 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 before working on electrical systems.
•Allow brake components to cool before handling after vehicle operation.

Symptoms

•Grinding noise when applying brakes
•Vibration in the brake pedal
•Decreased braking efficiency
•Check brake warning light illuminated
•Visible wear on brake components (pads, rotors)

Diagnostic Steps

1
Inspect brake pads for wear; measure thickness.
2
Examine brake rotors for scoring or warping.
3
Check for debris or foreign objects lodged in the brake assembly.
4
Inspect brake calipers for proper operation and any leaks.
5
Test brake fluid level and condition.
6
Scan for any error codes 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

•Jack and jack stands
•Lug wrench
•Socket set
•Torque wrench
•Brake cleaner
•Safety gloves
•Eye protection

Parts Required

•Brake pads
•Brake rotors (if necessary)
•Brake fluid (if topping off)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake pads for wear; measure thickness.
2
Examine brake rotors for scoring or warping.
3
Check for debris or foreign objects lodged in the brake assembly.
4
Inspect brake calipers for proper operation and any leaks.
5
Test brake fluid level and condition.
6
Scan for any error codes related to the braking system.

Solution

1. Preparation

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

2. Lift the Vehicle

Use a jack to lift the front and/or rear of the vehicle depending on which brakes are affected.
Secure with jack stands to ensure safety.

3. Remove Wheel

Use a lug wrench to remove the wheel covering the affected brake assembly.

4. Inspect and Replace Brake Pads

Inspect Pads: Remove the caliper bolts using a socket set and slide the caliper off the rotor.
- Check pad thickness; replace if below specifications (typically less than 3mm).
Replace Pads: If worn, remove old pads and install new ones, ensuring proper alignment.
- Torque caliper bolts to manufacturer specifications (usually around 25-30 ft-lbs).

5. Inspect and Replace Brake Rotors (if necessary)

Inspect Rotors: Check for grooves or warping on the rotor surface.
Replace Rotors: If damaged, remove the caliper bracket and rotor.
- Install new rotor and torque the caliper bracket bolts to specifications (typically around 70-80 ft-lbs).

6. Reassemble Brake Components

Reinstall the caliper over the new pads and rotor.
Replace wheel and tighten lug nuts in a star pattern to ensure even pressure.

7. Lower Vehicle and Test

Carefully lower the vehicle and remove jack stands.
Pump the brake pedal a few times to seat the pads.