how to fix Honda CR-V Fifth Generation (2017-2022) engine knocking noise?

Honda CR-V 6th Gen (2023-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

560 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix engine knocking noise in Honda CR-V Fifth Generation (2017-2022). 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 opening any components to avoid burns.

Symptoms

•Engine knocking or tapping noise during idle or acceleration
•Decreased engine performance
•Low oil pressure warning light illuminated
•Unusual vibrations felt through the steering wheel or floor
•Poor fuel economy

Diagnostic Steps

1
Scan the vehicle's computer for error codes using an OBD-II scanner to identify any related issues.
2
Check the engine oil level and condition to ensure proper lubrication.
3
Inspect the engine components visually for signs of wear or damage, focusing on the timing chain/belt and pulleys.
4
Listen to the engine with a stethoscope to localize the source of the knocking noise.
5
Perform a compression test on each cylinder to check for internal engine damage.
6
Inspect the spark plugs for signs of abnormal wear or deposits.

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
•Oil filter wrench
•Torque wrench
•Feeler gauge

Parts Required

•Engine oil (0W-20 or 5W-20)
•Oil filter
•Timing chain/belt (if replacement is necessary)
•Valve adjustment shims (if applicable)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's computer for error codes using an OBD-II scanner to identify any related issues.
2
Check the engine oil level and condition to ensure proper lubrication.
3
Inspect the engine components visually for signs of wear or damage, focusing on the timing chain/belt and pulleys.
4
Listen to the engine with a stethoscope to localize the source of the knocking noise.
5
Perform a compression test on each cylinder to check for internal engine damage.
6
Inspect the spark plugs for signs of abnormal wear or deposits.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent any electrical issues during repairs.

2. Change Engine Oil and Filter

Remove the oil drain plug using a socket set and allow the old oil to completely drain into a container.
Replace the oil drain plug and tighten to manufacturer specifications (typically around 20-30 lb-ft).
Remove the old oil filter using an oil filter wrench.
Install a new oil filter, applying a thin layer of clean oil to the gasket before tightening by hand.
Refill the engine with the recommended oil type (usually 0W-20 or 5W-20) and confirm the level with the dipstick.

3. Inspect and Replace Worn Components

If the noise persists, remove the engine cover and inspect the timing chain/belt for wear.
Replace the timing chain/belt if it shows signs of wear or is out of spec.
Check the tensioner and guides for proper operation and replace if necessary.

4. Perform a Valve Adjustment (if applicable)

If the engine is equipped with adjustable valves, check the clearance using a feeler gauge.
Adjust the valve clearance as per manufacturer specifications.

5. Reassemble and Test

Reinstall any removed components and ensure all bolts are torqued to specifications.
Reconnect the battery and start the engine to verify the knocking noise has been eliminated.