my Toyota Corolla E170 (2013-2019) has a knocking noise when going over bumps what should I do

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

510 words

Problem Statement

Learn how to diagnose and fix knocking noise in Toyota Corolla E170 suspension. 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 ensure the vehicle is securely supported on jack stands before working underneath.
•Allow sufficient time for the suspension components to settle before driving the vehicle.

Symptoms

•Knocking noise when traversing bumps or potholes
•Possible clunking sound during acceleration or deceleration
•Uneven tire wear
•Poor ride quality or increased vibration
•Visual signs of damage or wear in suspension components

Diagnostic Steps

1
Inspect the suspension components visually for any visible damage or wear.
2
Check the condition of the struts and shocks for leaks or physical damage.
3
Examine the sway bar links and bushings for wear or looseness.
4
Test the wheel bearings for play by jacking up the vehicle and shaking the wheel.
5
Check the subframe and chassis for any signs of loose or damaged mounts.

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
•Torque wrench
•Spring compressor

Parts Required

•New struts or shocks
•New sway bar links

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Diagnostic Steps

1
Inspect the suspension components visually for any visible damage or wear.
2
Check the condition of the struts and shocks for leaks or physical damage.
3
Examine the sway bar links and bushings for wear or looseness.
4
Test the wheel bearings for play by jacking up the vehicle and shaking the wheel.
5
Check the subframe and chassis for any signs of loose or damaged mounts.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Park the vehicle on a flat surface and engage the parking brake.
Prepare safety equipment such as gloves and safety glasses.

2. Raise the Vehicle

Use a jack to lift the front or rear of the vehicle, depending on the area of the noise.
Secure the vehicle with jack stands for safety.

3. Inspect and Replace Components

A. Struts/Shocks Replacement

Tools Required: Socket set, torque wrench, spring compressor (if needed).
Remove the wheel to access the strut assembly.
Disconnect the strut from the lower control arm.
Remove the bolts securing the strut to the top mount and carefully extract the strut.
If necessary, use a spring compressor to remove the spring from the old strut and install it onto the new strut.
Install the new strut in reverse order, ensuring all bolts are torqued to the manufacturer's specifications.

B. Sway Bar Links Replacement

Inspect the sway bar links; if damaged, remove them by unscrewing the bolts.
Install new sway bar links, ensuring all connections are secure and torqued appropriately.

4. Reassemble and Lower the Vehicle

Reinstall the wheel and lower the vehicle from the jack stands.
Tighten the wheel lug nuts to the manufacturer’s torque specifications.