why does my Honda Civic 10th Generation (2016-2021) make a knocking noise when accelerating

Honda Civic 10th Generation (2016-2021)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

547 words

Problem Statement

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

Affected Component

Engine

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before starting work to prevent burns.

Symptoms

•Knocking noise from the engine compartment during acceleration
•Increased engine vibration felt through the steering wheel
•Loss of power during acceleration
•Check engine light may be illuminated
•Decreased fuel economy

Diagnostic Steps

1
Inspect the engine mounts for damage or wear.
2
Scan for error codes using an OBD-II scanner to identify any related issues.
3
Check the condition of the spark plugs; look for fouling or wear.
4
Inspect the exhaust system for loose components or leaks.
5
Perform a visual inspection of the drive belts and pulleys for signs of wear or misalignment.

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
•Screwdrivers
•Jack and jack stands

Parts Required

•Engine mounts (if damaged)
•Spark plugs
•Exhaust parts (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect the engine mounts for damage or wear.
2
Scan for error codes using an OBD-II scanner to identify any related issues.
3
Check the condition of the spark plugs; look for fouling or wear.
4
Inspect the exhaust system for loose components or leaks.
5
Perform a visual inspection of the drive belts and pulleys for signs of wear or misalignment.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Engine Mounts

Lift the Vehicle: Use a jack and jack stands to elevate the vehicle securely.
Remove Engine Mount Bolts: Use a socket set to remove the bolts securing the engine mounts.
Inspect Mounts: Check for cracks or excessive wear on the rubber components of the mounts.
Replace if Necessary: If damage is found, install new engine mounts, ensuring they are oriented correctly.
Torque Specifications: Tighten bolts to manufacturer specifications (usually around 40-50 ft-lbs; check the service manual for exact values).

3. Replace Spark Plugs

Remove Ignition Coils: Disconnect the wiring harness and remove the bolts holding the ignition coils.
Extract Spark Plugs: Use a spark plug socket to remove the old spark plugs.
Install New Spark Plugs: Use the correct gap specification (typically 0.044 inches for Honda) and install new plugs, torquing to 13 ft-lbs.
Reinstall Ignition Coils: Bolt them back into place and reconnect the wiring harness.

4. Inspect and Repair Exhaust System

Visual Check: Examine the exhaust system for loose heat shields or pipe connections.
Tighten Loose Components: Use a socket and ratchet to tighten any loose bolts.
Replace Damaged Parts: If any sections of the exhaust are damaged, replace them as necessary.

5. Check Drive Belts and Pulleys

Visual Inspection: Look for cracks, fraying, or wear on the drive belts.
Check Tension: Use a belt tension gauge to ensure proper tension.
Replace as Needed: If belts are worn, replace them following the manufacturer’s guidelines.