why is there a knocking noise from my Toyota Camry XV70 (2018-2024) when I accelerate?

Toyota Camry XV80 (2025-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

499 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Toyota Camry XV70 (2018-2024). 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 performing any inspections or repairs.

Symptoms

•Knocking noise when accelerating
•Vibration felt through the steering wheel
•Loss of power during acceleration
•Poor fuel economy
•Check engine light may be illuminated

Diagnostic Steps

1
Inspect the engine mounts for signs of wear or damage.
2
Scan for error codes using an OBD-II scanner to identify potential issues.
3
Check the condition of the spark plugs and ignition coils.
4
Examine the exhaust system for loose components or leaks.
5
Inspect the drivetrain components, including CV joints and the driveshaft.
6
Check the fuel system for proper pressure and flow.

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
•Spark plug socket
•Pry bar
•Wrench set
•Jack and jack stands
•Flashlight

Parts Required

•Engine mounts
•Spark plugs
•Ignition coils
•Exhaust components (if damaged)
•CV joints or driveshaft (if needed)

Related Faults

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Diagnostic Steps

1
Inspect the engine mounts for signs of wear or damage.
2
Scan for error codes using an OBD-II scanner to identify potential issues.
3
Check the condition of the spark plugs and ignition coils.
4
Examine the exhaust system for loose components or leaks.
5
Inspect the drivetrain components, including CV joints and the driveshaft.
6
Check the fuel system for proper pressure and flow.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a flat surface and secure it with wheel chocks.
Disconnect the battery to prevent electrical shorts.

2. Inspect Engine Mounts

Tools Needed: Socket set, pry bar
Remove the engine cover if applicable.
Use a pry bar to check for movement in the engine mounts.
If any mount is damaged or excessively worn, replace it with a new one.
Torque Specifications: Tighten new mounts to manufacturer specifications.

3. Replace Spark Plugs and Ignition Coils

Tools Needed: Spark plug socket, ratchet, torque wrench
Remove the ignition coil covers.
Disconnect the electrical connectors from the ignition coils.
Remove the ignition coils and spark plugs.
Install new spark plugs, torquing them to manufacturer specifications.
Reinstall the ignition coils and reconnect electrical connectors.

4. Examine the Exhaust System

Tools Needed: Wrench set, flashlight
Inspect the exhaust pipes and muffler for any signs of damage or loose connections.
Tighten any loose bolts and replace damaged sections of the exhaust system as necessary.

5. Inspect Drivetrain Components

Tools Needed: Jack and jack stands, socket set
Raise the vehicle and inspect the CV joints and driveshaft for any signs of wear or damage.
Replace any worn CV joints or driveshafts as needed.