my Toyota Corolla E170 (2013-2019) has a loud knocking noise when driving, what's wrong?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

578 words

Problem Statement

Learn how to diagnose and fix loud knocking noise in Toyota Corolla E170. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical components.
•Use caution when working under the vehicle; ensure it is securely supported.

Symptoms

•Loud knocking noise while driving, especially over bumps or uneven surfaces
•Vehicle pulling to one side during driving
•Vibration felt through the steering wheel
•Check engine light illuminated (if related to engine issues)
•Decreased handling stability
•Unusual tire wear patterns

Diagnostic Steps

1
Inspect the suspension components for wear or damage, including struts, shocks, control arms, and bushings.
2
Check the engine and transmission mounts for signs of wear or failure.
3
Perform a visual inspection of the drivetrain, including the CV joints and axles.
4
Test drive the vehicle to replicate the noise and determine under what conditions it occurs.
5
Scan for error codes using an OBD-II scanner to check for any related engine issues.
6
Inspect the tires for uneven wear or damage that may contribute to the noise.

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

•Socket set
•Torque wrench
•Jack and jack stands
•Wheel chocks
•OBD-II scanner

Parts Required

•Suspension components (struts, shocks, control arms, bushings)
•Engine/transmission mounts
•CV joints or axle assembly (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the suspension components for wear or damage, including struts, shocks, control arms, and bushings.
2
Check the engine and transmission mounts for signs of wear or failure.
3
Perform a visual inspection of the drivetrain, including the CV joints and axles.
4
Test drive the vehicle to replicate the noise and determine under what conditions it occurs.
5
Scan for error codes using an OBD-II scanner to check for any related engine issues.
6
Inspect the tires for uneven wear or damage that may contribute to the noise.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and securely jack it up.
Use wheel chocks to prevent the vehicle from rolling.

2. Inspect and Replace Suspension Components

Inspecting:
- Remove the wheel to access suspension parts.
- Check struts and shock absorbers for leaks or damage.
- Examine control arms and bushings for cracks or excessive wear.
Replacing:
- If any components are damaged, use a socket set to remove the bolts securing the affected parts.
- Replace with OEM or quality aftermarket parts, ensuring proper alignment of the new components.
- Torque bolts to manufacturer specifications.

3. Check and Replace Engine/Transmission Mounts

Inspection:
- Visually inspect mounts for cracks or separation.
Replacement:
- Remove the bolts securing the mount to the engine and the chassis using a socket set.
- Install new mounts, ensuring proper alignment.
- Torque bolts according to specifications.

4. Inspect and Repair Drivetrain Components

Inspection:
- Check CV joints and axles for any tears, leaks, or play.
Repair/Replacement:
- If CV joints are damaged, remove the axle nut and disconnect the axle from the transmission.
- Replace with a new axle or CV joint assembly as needed.

5. Reassemble and Final Checks

Reinstall the wheels using a torque wrench to tighten lug nuts to the manufacturer's specifications.
Lower the vehicle and perform a final visual inspection of all replaced components.