why does my Toyota Camry XV70 (2018-2024) make a knocking noise when accelerating

Toyota Camry XV80 (2025-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

543 words

Problem Statement

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 opening the radiator or working on engine components

Symptoms

•Knocking noise that increases in intensity with acceleration
•Vibration felt through the steering wheel or floorboard
•Possible loss of power during acceleration
•Check engine light may be illuminated
•Unusual engine noises at idle or during deceleration

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect engine mounts for any signs of wear or damage
3
Inspect the exhaust system for loose components or leaks
4
Ensure the transmission fluid is at the correct level and condition
5
Inspect suspension parts such as struts, shocks, and bushings for wear 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
•Torque wrench
•Jack and jack stands
•Multimeter

Parts Required

•Engine mounts (if damaged)
•Exhaust components (if needed)
•Transmission fluid (specific to model)
•Suspension parts (if worn)

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect engine mounts for any signs of wear or damage
3
Inspect the exhaust system for loose components or leaks
4
Ensure the transmission fluid is at the correct level and condition
5
Inspect suspension parts such as struts, shocks, and bushings for wear or damage

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, jack and jack stands, multimeter.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Repair or Replace Engine Mounts

Inspect engine mounts for cracks or tears.
If damaged, remove bolts securing the engine mount to the chassis and engine.
Replace the engine mount with a new one, ensuring it matches OEM specifications.
Torque the mounting bolts to the manufacturer's specifications (typically found in the service manual).

3. Tighten or Replace Exhaust Components

Inspect all exhaust hangers and connections for looseness or damage.
Tighten any loose bolts.
If exhaust components are damaged, replace them as necessary, ensuring proper fitment and sealing.

4. Transmission Fluid Service

Locate the transmission fluid dipstick (if equipped) or drain plug.
If the fluid is low, add the appropriate type of transmission fluid (usually specified in the owner's manual).
If fluid is contaminated, perform a complete fluid change following the service manual guidelines.

5. Inspect and Replace Suspension Parts

Check the struts and shocks for leaks or damage.
Replace any worn strut or shock absorber, using a torque wrench to ensure all bolts are tightened to specifications.
Inspect bushings and replace if cracked or worn.