why does my Toyota Corolla E170 (2013-2019) make a knocking noise when driving

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

571 words

Problem Statement

Learn how to diagnose and fix knocking noise issues in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely supported before working underneath it.
•Disconnect the battery before working on electrical components.
•Allow the engine to cool before inspecting the exhaust system.

Symptoms

•Knocking noise during acceleration or deceleration
•Noise becomes louder over bumps or uneven road surfaces
•Vibration felt in the steering wheel or floorboard
•Decreased handling performance or steering response
•Potential loss of power during driving

Diagnostic Steps

1
Inspect the vehicle's suspension components for wear or damage.
2
Check the engine and transmission mounts for signs of deterioration.
3
Examine the drive shafts and CV joints for any play or damage.
4
Listen for the noise while the vehicle is stationary and in gear to isolate the source.
5
Perform a visual inspection of the exhaust system for loose parts or leaks.
6
Scan for any diagnostic trouble codes (DTCs) that may indicate engine or transmission issues.

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
•Socket set
•Wrench set
•Torque wrench
•Exhaust clamp tool

Parts Required

•Engine mounts (if damaged)
•Transmission mounts (if damaged)
•CV joint (if damaged)
•Suspension components (if worn)

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Diagnostic Steps

1
Inspect the vehicle's suspension components for wear or damage.
2
Check the engine and transmission mounts for signs of deterioration.
3
Examine the drive shafts and CV joints for any play or damage.
4
Listen for the noise while the vehicle is stationary and in gear to isolate the source.
5
Perform a visual inspection of the exhaust system for loose parts or leaks.
6
Scan for any diagnostic trouble codes (DTCs) that may indicate engine or transmission issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is off.
Use wheel chocks to prevent the vehicle from rolling.

2. Inspect Suspension Components

Raise the vehicle using a jack and secure it with jack stands.
Visually inspect the front and rear suspension components, including struts, control arms, and bushings.
Check for any cracked or worn parts; replace as necessary.
- Tools Required: Jack, jack stands, socket set, wrench set.
- Safety Warnings: Ensure the vehicle is securely supported before working underneath it.

3. Check Engine and Transmission Mounts

Inspect the engine and transmission mounts for cracks or excessive movement.
If any mounts are damaged, remove the old mounts and replace them with new parts.
Tighten the new mounts to manufacturer specifications.
- Tools Required: Torque wrench, socket set.
- Safety Warnings: Disconnect the battery before working on electrical components.

4. Examine Drive Shafts and CV Joints

Inspect the drive shafts for any visible damage or excessive play.
Check CV joints for torn boots or grease leakage; replace if necessary.
Reinstall any components and tighten bolts to the specified torque.
- Tools Required: Torque wrench, socket set.

5. Inspect Exhaust System

Check the exhaust system for loose heat shields or clamps.
Tighten or replace any loose components to eliminate noise sources.
- Tools Required: Wrench set, exhaust clamp tool.

6. Test Drive

Lower the vehicle and perform a test drive to check if the knocking noise persists.
Monitor the vehicle's handling and noise levels during the drive.