why does my Toyota Corolla E170 (2013-2019) make a grinding noise when braking

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

501 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

•Ensure the vehicle is on a flat surface.
•Engage the parking brake before lifting the vehicle.
•Ensure the vehicle is securely lifted before working on the brakes.
•Allow the brakes to cool down if the vehicle has been driven recently.

Symptoms

•Grinding noise when applying brakes
•Reduced braking efficiency
•Vibration in the brake pedal
•Warning light on the dashboard (if equipped)
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads for wear and tear using a visual inspection.
2
Check brake rotors for damage or warping.
3
Examine brake calipers for proper operation and any signs of sticking.
4
Inspect brake fluid level and condition.
5
Scan for any fault codes related to the braking system using an OBD-II scanner.

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
•Jack stands
•Lug wrench
•Socket set
•Brake cleaner
•Torque wrench
•OBD-II scanner

Parts Required

•Brake pads
•Brake rotors (if necessary)

Related Faults

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Solution

1. Preparation

Tools Required: Jack, jack stands, lug wrench, socket set, brake cleaner, torque wrench, OBD-II scanner.
Safety Warnings: Ensure the vehicle is on a flat surface. Engage the parking brake before lifting the vehicle.

2. Remove Wheel

Loosen the lug nuts slightly while the vehicle is on the ground.
Use a jack to lift the vehicle and secure it with jack stands.
Remove the lug nuts completely and take off the wheel to access the brakes.

3. Inspect Brake Components

Brake Pads:
- Inspect the thickness of the brake pads. Replace if they are below 3mm.
- Check for uneven wear or cracking.
Brake Rotors:
- Examine the surface of the rotors for scoring, warping, or excessive rust.
- If damaged, replace or resurface the rotors as necessary.

4. Replace Brake Pads (if necessary)

Remove the caliper bolts using a socket set.
Carefully slide the caliper off the brake pads.
Remove the old brake pads from the caliper bracket.
Install new brake pads, ensuring they fit securely.

5. Reassemble and Test

Reinstall the brake caliper over the new pads and secure with caliper bolts, torquing to the manufacturer’s specifications (typically around 25-30 lb-ft).
Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle and fully tighten the lug nuts in a crisscross pattern to the manufacturer's specifications (usually around 76 lb-ft).
Dispose of any old brake components and clean the area.