why does my Honda Civic 9th Generation (2012-2015) make a knocking noise

Honda Civic 9th Generation (2012-2015)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

535 words

Problem Statement

Learn how to diagnose and fix knocking noise in Honda Civic 9th Generation (2012-2015). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

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 opening the oil drain plug.

Symptoms

•Knocking noise when accelerating or decelerating
•Noise occurs over bumps or while turning
•Engine misfire or rough idle
•Decreased fuel efficiency
•Vibration felt in the steering wheel or chassis

Diagnostic Steps

1
Inspect the suspension components for wear or damage, including struts, bushings, and control arms.
2
Use an OBD-II scanner to check for any error codes that might indicate engine problems.
3
Check engine oil level and condition; look for signs of contamination or metal particles.
4
Inspect the engine mounts for signs of wear or failure.
5
Conduct a visual inspection of the exhaust system for loose components or leaks.
6
Perform a test drive to replicate the knocking noise and determine when it occurs.

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 filter wrench
•Jack and jack stands

Parts Required

•Suspension components (struts, bushings, etc.)
•Engine mounts
•Engine oil and oil filter

Related Faults

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Diagnostic Steps

1
Inspect the suspension components for wear or damage, including struts, bushings, and control arms.
2
Use an OBD-II scanner to check for any error codes that might indicate engine problems.
3
Check engine oil level and condition; look for signs of contamination or metal particles.
4
Inspect the engine mounts for signs of wear or failure.
5
Conduct a visual inspection of the exhaust system for loose components or leaks.
6
Perform a test drive to replicate the knocking noise and determine when it occurs.

Solution

1. Preparation

Gather tools and parts for the repair.
Park the vehicle on a flat surface and engage the parking brake.
Disconnect the battery to ensure safety during repairs.

2. Inspect and Replace Suspension Components

Inspect:
- Examine the struts and shocks for leaks or damage.
- Check bushings in control arms and sway bars for wear.
Replace if necessary:
- Remove the wheel assembly to access suspension components.
- Use a socket set to remove bolts securing the struts and control arms.
- Install new suspension components, ensuring they are torqued to manufacturer specifications (typically around 50-70 ft-lbs for control arms).

3. Engine Mount Inspection and Replacement

Inspect:
- Look for cracks or separation in the engine mounts.
Replace if necessary:
- Remove the engine cover if applicable.
- Support the engine with a jack and a block of wood to avoid damage.
- Remove bolts securing the engine mount to the engine and chassis using a socket set.
- Install the new engine mount and torque to specifications (usually around 40-55 ft-lbs).

4. Engine Oil and Filter Change

Change oil:
- Drain the old engine oil and replace it with the correct type (typically 0W-20 synthetic).
- Replace the oil filter using an oil filter wrench.
- Refill the engine with the specified amount of oil (approximately 4.4 quarts).