why does my Honda CR-V Fifth Generation (2017-2022) make a knocking noise on acceleration

Honda CR-V Sixth Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

622 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Honda CR-V (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 draining oil to avoid burns.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Knocking noise when accelerating
•Possible vibration felt through the floor or steering wheel
•Decreased engine performance or response
•Engine misfire or rough running
•Unusual smells or smoke from the engine compartment

Diagnostic Steps

1
Inspect the engine and transmission mounts for signs of wear or damage.
2
Scan for error codes using an OBD-II scanner to check for engine-related issues.
3
Check the oil level and quality; low or dirty oil can cause knocking sounds.
4
Inspect the exhaust system for loose components or leaks that could create noise.
5
Listen for the noise while revving the engine in neutral to isolate the source.
6
Examine the drive shafts and CV joints for play or damage.

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
•Jack and jack stands
•Pry bar
•Oil filter wrench
•Drain pan
•Torque wrench
•Multimeter

Parts Required

•Engine oil (0W-20 or as specified)
•Oil filter
•Engine or transmission mounts (if damaged)
•CV joint or drive shaft (if damaged)

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Diagnostic Steps

1
Inspect the engine and transmission mounts for signs of wear or damage.
2
Scan for error codes using an OBD-II scanner to check for engine-related issues.
3
Check the oil level and quality; low or dirty oil can cause knocking sounds.
4
Inspect the exhaust system for loose components or leaks that could create noise.
5
Listen for the noise while revving the engine in neutral to isolate the source.
6
Examine the drive shafts and CV joints for play or damage.

Solution

1. Preparation

Gather tools: OBD-II scanner, socket set, jack and jack stands, torque wrench, and a multimeter.
Ensure the vehicle is on a flat surface and engage the parking brake.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect Engine and Transmission Mounts

Sub-steps:
- Raise the vehicle using a jack and secure it with jack stands.
- Visually inspect the engine and transmission mounts for cracks or signs of deterioration.
- Use a pry bar to check for excessive movement in the mounts; replace if found faulty.
Tools Required: Pry bar, socket set for mount bolts.
Safety Warnings: Ensure the vehicle is securely supported on jack stands before working underneath.

3. Check and Change Engine Oil

Sub-steps:
- Check the oil level using the dipstick; add oil if low.
- If the oil is dirty or hasn't been changed per the service interval, perform an oil change.
- Replace the oil filter and refill with the recommended oil type (typically 0W-20 or as specified).
Tools Required: Oil filter wrench, drain pan, socket set.
Safety Warnings: Allow the engine to cool before draining oil to avoid burns.

4. Inspect Exhaust System

Sub-steps:
- Start the engine and listen for any hissing or rattling noises from the exhaust.
- Check for loose hangers or brackets and tighten or replace as necessary.
- Inspect the catalytic converter and muffler for damage or blockage.
Tools Required: Wrench set, jack stands if undercar inspection is needed.

5. Examine Drive Shafts and CV Joints

Sub-steps:
- Raise and support the front of the vehicle.
- Inspect the CV joints for torn boots or excessive play.
- Spin the drive shafts to check for unusual noises or resistance; replace if necessary.
Tools Required: Socket set, pry bar.
Safety Warnings: Ensure the vehicle is securely supported while inspecting underneath.