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

Honda Accord 8th Generation (2008-2012)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

586 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Honda Accord 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 the engine to cool before opening the oil drain plug or working on the engine

Symptoms

•Knocking noise during acceleration
•Possible loss of power while accelerating
•Vibration felt through the steering wheel or floor
•Check engine light illuminated
•Decreased fuel efficiency
•Engine stalling in severe cases

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored diagnostic trouble codes (DTCs)
2
Inspect the engine oil level and condition; low or dirty oil can contribute to knocking noises
3
Check the engine mounts for signs of wear or damage that may cause excessive movement during acceleration
4
Examine the exhaust system for loose components or leaks that could create noise
5
Inspect the drivetrain components, including the transmission and driveshaft, for any signs of wear or play
6
Conduct a visual inspection of the spark plugs and ignition system for any irregularities

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
•Oil filter wrench
•Torque wrench
•Jack and jack stands

Parts Required

•Engine oil (0W-20)
•Oil filter
•Engine mount (if needed)
•Transmission fluid (Honda ATF DW-1, if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored diagnostic trouble codes (DTCs)
2
Inspect the engine oil level and condition; low or dirty oil can contribute to knocking noises
3
Check the engine mounts for signs of wear or damage that may cause excessive movement during acceleration
4
Examine the exhaust system for loose components or leaks that could create noise
5
Inspect the drivetrain components, including the transmission and driveshaft, for any signs of wear or play
6
Conduct a visual inspection of the spark plugs and ignition system for any irregularities

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Disconnect the battery to prevent electrical issues during repair.

2. Engine Oil Change (if needed)

Sub-steps:
1. Remove the oil drain plug using a socket set and drain the old oil into a suitable container.
2. Replace the oil filter using an oil filter wrench.
3. Replace the drain plug and tighten to the manufacturer's torque specification (typically around 30 ft-lbs).
4. Refill the engine with the recommended oil type (typically 0W-20 for Honda Accord) through the oil fill cap.

3. Engine Mount Inspection and Replacement (if needed)

Sub-steps:
1. Visually inspect engine mounts for cracks or separation.
2. If damaged, raise the vehicle securely on jack stands.
3. Remove the bolts securing the engine mount to the engine and the frame using a socket set.
4. Replace with a new engine mount, tightening bolts to the specified torque (usually around 50-70 ft-lbs).
5. Lower the vehicle and check for noise after starting the engine.

4. Drivetrain Component Inspection

Sub-steps:
1. Inspect the driveshaft for any signs of wear or looseness.
2. Check the transmission fluid level; top off if low with the appropriate fluid (typically Honda ATF DW-1).
3. If issues are found with the driveshaft or transmission, replace or repair as necessary.