why does my Honda Accord make a thumping noise when going over bumps

Honda Accord 10th Generation (2018-2022)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

445 words

Problem Statement

Learn how to diagnose and fix thumping noise in Honda Accord 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

•Ensure the vehicle is securely lifted on jack stands before working underneath.
•Always wear safety glasses and gloves when working on the vehicle.

Symptoms

•Thumping noise when the vehicle goes over bumps
•Increased play in the steering wheel
•Uneven tire wear
•Rough ride quality
•Possible rattling or clunking sounds during normal driving

Diagnostic Steps

1
Inspect the suspension components visually for any signs of damage or wear.
2
Check the condition of the shock absorbers/struts for leaks or physical damage.
3
Examine the sway bar links and bushings for wear or detachment.
4
Look for any loose or damaged exhaust hangers that could be causing noise.
5
Test the vehicle's steering and suspension by pushing down on the front and rear of the vehicle to check for abnormal movement.

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
•Wrench set
•Torque wrench
•Jack
•Jack stands

Parts Required

•Shock absorbers/struts
•Sway bar links
•Sway bar bushings

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Diagnostic Steps

1
Inspect the suspension components visually for any signs of damage or wear.
2
Check the condition of the shock absorbers/struts for leaks or physical damage.
3
Examine the sway bar links and bushings for wear or detachment.
4
Look for any loose or damaged exhaust hangers that could be causing noise.
5
Test the vehicle's steering and suspension by pushing down on the front and rear of the vehicle to check for abnormal movement.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a level surface and secure it with wheel chocks.
Use jack stands to lift the vehicle safely if working underneath.

2. Inspect and Replace Damaged Components

Shock Absorbers/Struts:
- Remove the wheel to access the strut assembly.
- Use a socket set to remove the bolts securing the strut to the steering knuckle and top mount.
- Compare the new strut with the old one for correct fitment.
- Install the new strut, tightening bolts to the manufacturer’s torque specifications.
Sway Bar Links and Bushings:
- Inspect sway bar links for wear; if damaged, remove using a wrench and replace with new links.
- Replace bushings if they appear cracked or degraded.

3. Reassemble and Test

Reinstall the wheel and lower the vehicle back to the ground.
Tighten the lug nuts to the specified torque.
Conduct a test drive to ensure the noise has been resolved.