my Honda CR-V makes a knocking noise when I accelerate what's causing it

Honda CR-V Fifth Generation (2017-2022)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

500 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Honda CR-V. 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 components.
•Allow engine to cool before opening any parts related to the engine or oil system.

Symptoms

•Knocking noise increases with acceleration
•Possible vibrations felt through the steering wheel
•Loss of power or sluggish acceleration
•Engine misfires or rough idling
•Unusual smells or fluid leaks may be present

Diagnostic Steps

1
Inspect the engine mounts visually for cracks or wear.
2
Use an OBD-II scanner to check for any stored error codes.
3
Verify the oil level and condition, checking for contamination or low levels.
4
Listen for the source of the knocking noise by revving the engine in park.
5
Inspect suspension components, including struts and control arms, for wear or damage.
6
Test drive the vehicle to replicate the noise under various driving conditions.

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
•Hydraulic jack
•Jack stands
•Oil filter wrench
•Drain pan
•Funnel

Parts Required

•Engine mount (if damaged)
•Engine oil
•Oil filter (if necessary)
•Suspension components (if damaged)

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Diagnostic Steps

1
Inspect the engine mounts visually for cracks or wear.
2
Use an OBD-II scanner to check for any stored error codes.
3
Verify the oil level and condition, checking for contamination or low levels.
4
Listen for the source of the knocking noise by revving the engine in park.
5
Inspect suspension components, including struts and control arms, for wear or damage.
6
Test drive the vehicle to replicate the noise under various driving conditions.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.
Raise the vehicle using a hydraulic jack and secure it with jack stands.

2. Inspect and Replace Engine Mounts (if necessary)

Tools Required: Socket set, torque wrench
Remove the bolts securing the engine mount to the engine and chassis.
Carefully lift the engine slightly using a jack to relieve tension on the mount.
Replace the damaged engine mount with a new one, ensuring proper alignment.
Torque the bolts to the manufacturer’s specification (consult service manual for exact values).

3. Check and Replace Oil (if necessary)

Tools Required: Oil filter wrench, drain pan, funnel
Remove the oil drain plug and allow the old oil to completely drain into the pan.
Replace the oil filter using the oil filter wrench.
Reinstall the drain plug and fill with new oil as per the manufacturer's specifications.

4. Inspect and Repair Suspension Components (if necessary)

Tools Required: Wrench set, pry bar
Inspect struts and control arms for any signs of wear or damage.
Replace any worn or damaged components with OEM parts.
Ensure all bolts are torqued to specifications.