my Honda Accord 10th Generation (2018-2022) has a knocking noise when accelerating

Honda Accord 8th Generation (2008-2012)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

545 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Honda Accord 10th Generation (2018-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow engine to cool before opening any components to avoid burns.

Symptoms

•Knocking noise increases with acceleration
•Possible vibration felt through the vehicle body
•Loss of power during acceleration
•Engine stalling or hesitation
•Check engine light may be illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any engine or transmission-related codes.
2
Inspect the engine oil level and condition; low or dirty oil can cause knocking.
3
Check for loose or damaged engine mounts that may contribute to noise during acceleration.
4
Examine the exhaust system for any loose components or leaks that could cause knocking sounds.
5
Inspect the drive belts and pulleys for wear or damage that could lead to noise under load.
6
Test the fuel system for issues, including fuel pressure and injector function.

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
•Socket set
•Torque wrench
•Oil wrench
•Oil catch pan
•Funnel

Parts Required

•Engine oil
•Oil filter
•Engine mounts (if needed)
•Drive belts (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any engine or transmission-related codes.
2
Inspect the engine oil level and condition; low or dirty oil can cause knocking.
3
Check for loose or damaged engine mounts that may contribute to noise during acceleration.
4
Examine the exhaust system for any loose components or leaks that could cause knocking sounds.
5
Inspect the drive belts and pulleys for wear or damage that could lead to noise under load.
6
Test the fuel system for issues, including fuel pressure and injector function.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off and cool.
Disconnect the battery to eliminate electrical hazards.

2. Engine Oil Check and Replacement

Tools Required: Oil wrench, oil catch pan, funnel, new oil filter, replacement engine oil.
Inspect the oil level using the dipstick; add oil if low or replace if dirty.
Drain the old oil using the catch pan and remove the oil filter.
Install a new oil filter and refill with the correct type and amount of engine oil (consult manufacturer specifications).

3. Inspect and Replace Engine Mounts

Tools Required: Socket set, torque wrench.
Visually inspect all engine mounts for wear or damage.
If damaged, remove the bolts securing the mount to the engine and frame.
Replace the engine mount with a new one and torque bolts to manufacturer specifications.

4. Exhaust System Inspection

Tools Required: Wrench set, exhaust clamps (if needed).
Check the exhaust system from the engine to the tailpipe for loose connections or damage.
Tighten any loose clamps or replace any damaged sections of the exhaust if necessary.

5. Drive Belts and Pulleys Check

Tools Required: Socket set, belt tension gauge (if applicable).
Inspect drive belts for cracks, fraying, or glazing.
Replace any worn belts and ensure tension is within specifications.