my Honda Accord makes a loud noise when accelerating what's going on

Honda Accord 10th Generation (2018-2022)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

475 words

Problem Statement

Learn how to diagnose and fix loud noise during acceleration in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Exhaust System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting the exhaust system.

Symptoms

•Loud noise that increases with acceleration
•Possible vibration felt through the steering wheel or floorboard
•Decreased engine performance or responsiveness
•Unusual sounds when idling
•Check engine light may be illuminated

Diagnostic Steps

1
Inspect the exhaust system for leaks or damage.
2
Check for any loose or damaged engine mounts.
3
Use an OBD-II scanner to check for diagnostic trouble codes (DTC).
4
Inspect the drive belts for wear or looseness.
5
Test the engine under load to isolate noise source.

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

•OBD-II scanner
•Wrench set
•Socket set
•Torque wrench
•Exhaust pipe cutter
•Belt tension gauge

Parts Required

•Exhaust pipe or exhaust patch kit
•Engine mount (if required)
•Drive belt (if required)

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Solution

1. Preparation

Gather tools and components needed for the repair.
Ensure the vehicle is parked on a level surface and engage the parking brake.
Disconnect the battery to avoid electrical shorts.

2. Inspect and Repair Exhaust System

Tools Required: Wrench set, exhaust pipe cutter (if needed), jack stands, safety goggles.
Inspect the exhaust system for any visible cracks or holes.
If a leak is found, use a pipe cutter to remove the damaged section.
Replace with a new exhaust pipe or patch using exhaust tape for minor leaks.
Reinstall and secure all clamps and hangers.

3. Check Engine Mounts

Tools Required: Socket set, torque wrench.
Visually inspect engine mounts for cracks or excessive wear.
If damaged, support the engine with a jack, remove the bolts securing the mount, and replace with a new mount.
Torque the new mount bolts to specifications as per the service manual.

4. Inspect Drive Belts

Tools Required: Wrench set, belt tension gauge.
Check the drive belts for fraying or looseness.
If worn, loosen the tensioner and remove the old belt.
Install a new belt, ensuring proper routing and tension.

5. Reconnect Battery

Reconnect the battery terminals and ensure all connections are secure.
Start the engine and allow it to idle to check for noise.