why does my Honda Accord 9th Generation (2013-2017) make a knocking noise when accelerating

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

513 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Honda Accord 9th Generation (2013-2017). 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 inspecting or working on it.

Symptoms

•Knocking noise audible during acceleration
•Possible vibration felt through the steering wheel
•Loss of power or hesitation when accelerating
•Engine misfire or rough idle
•Check engine light may illuminate

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Inspect engine and transmission mounts for signs of wear or damage.
3
Check the condition of the drive belts and pulleys for any irregularities or looseness.
4
Perform a visual inspection of the exhaust system for loose components or leaks.
5
Inspect the suspension components, including struts and control arms, for wear.
6
Test the engine timing and ignition system to ensure proper 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
•Jack and jack stands
•Screwdrivers

Parts Required

•Engine/transmission mounts
•Drive belts (if worn)
•Exhaust clamps or hangers (if damaged)
•Suspension components (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Inspect engine and transmission mounts for signs of wear or damage.
3
Check the condition of the drive belts and pulleys for any irregularities or looseness.
4
Perform a visual inspection of the exhaust system for loose components or leaks.
5
Inspect the suspension components, including struts and control arms, for wear.
6
Test the engine timing and ignition system to ensure proper function.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a level surface and engage the parking brake.
Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Engine/Transmission Mounts

Sub-steps:
1. Use a socket set to remove the mounting bolts securing the engine/transmission mounts.
2. Carefully lift the engine/transmission slightly using a jack to relieve pressure on the mounts.
3. Remove the old mounts and inspect for cracks or excessive wear.
4. Install new mounts and torque the bolts to the manufacturer's specifications (consult service manual for specific torque values).

3. Check and Replace Drive Belts/Pulleys

Sub-steps:
1. Inspect drive belts for fraying or glazing; replace if necessary.
2. Check pulleys for alignment and damage; replace any defective components.
3. Adjust belt tension to manufacturer specifications.

4. Inspect and Tighten Exhaust Components

Sub-steps:
1. Visually inspect the exhaust system for loose clamps or hangers.
2. Tighten any loose connections or replace damaged components as needed.
3. Ensure there are no exhaust leaks that could contribute to noise.

5. Inspect Suspension Components

Sub-steps:
1. Visually inspect struts, control arms, and bushings for signs of wear.
2. Replace any worn components, ensuring all bolts are properly torqued.
3. Test drive the vehicle to see if the noise persists.