why is my Honda Accord 10th Generation (2018-2022) making a knocking noise

Honda Accord 8th Generation (2008-2012)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

652 words

Problem Statement

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

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is parked on a level surface
•Set the parking brake
•Wear safety gloves and goggles

Symptoms

•Knocking noise during acceleration or deceleration
•Noise occurs while idling
•Vibration felt through the steering wheel or floorboard
•Check engine light illuminated
•Decreased engine performance or power loss
•Unusual engine temperature readings

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect engine mounts for wear, cracks, or separation
3
Examine exhaust components, heat shields, and other parts for looseness or damage
4
Use a mechanic's stethoscope or a long screwdriver to pinpoint the source of the knocking noise
5
Check the engine oil level and condition
6
Conduct a compression test on the cylinders

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
•Mechanic's stethoscope
•Torque wrench
•Compression tester
•Oil filter wrench
•Drain pan

Parts Required

•Engine mounts (if faulty)
•Engine oil
•Oil filter

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect engine mounts for wear, cracks, or separation
3
Examine exhaust components, heat shields, and other parts for looseness or damage
4
Use a mechanic's stethoscope or a long screwdriver to pinpoint the source of the knocking noise
5
Check the engine oil level and condition
6
Conduct a compression test on the cylinders

Solution

1. Preparation

Gather Tools: OBD-II scanner, socket set, mechanic's stethoscope, torque wrench, and compression tester.
Safety Precautions: Ensure the vehicle is parked on a level surface, set the parking brake, and wear safety gloves and goggles.

2. Address Engine Mounts (if faulty)

Remove Engine Covers: Use a socket set to remove any engine covers obstructing access to the engine mounts.
Inspect Engine Mounts: Check for any visible cracks or deterioration. If damaged, proceed to replace them.
Replace Engine Mounts:
1. Loosen Bolts: Use the socket set to loosen and remove the bolts securing the engine mount to the frame and engine.
2. Install New Mount: Position the new engine mount and hand-tighten the bolts.
3. Torque to Specification: Use the torque wrench to tighten the bolts to the manufacturer’s specified torque settings.

3. Tighten Loose Components

Inspect All Components: Check exhaust system, heat shields, and other undercarriage components for looseness.
Tighten Bolts and Clamps: Use a socket set to tighten any loose bolts or clamps to the manufacturer's specifications.

4. Change Oil (if necessary)

Drain Old Oil: Place a drain pan under the oil pan, remove the oil drain plug, and allow the old oil to fully drain.
Replace Oil Filter: Remove the old oil filter using an oil filter wrench and install a new one.
Add New Oil: Replace the drain plug and refill the engine with the recommended oil type and capacity as specified in the owner's manual.

5. Compression Test (if necessary)

Remove Spark Plugs: Use a socket set to remove the spark plugs.
Insert Compression Tester: Screw the compression tester into the spark plug hole.
Crank Engine: Crank the engine to obtain a reading. Repeat for each cylinder and record results.