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

554 words

Problem Statement

Diagnose and fix knocking noise during acceleration in Toyota Camry XV70 (2018-2024). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is on a flat surface and securely raised with jack stands before working underneath
•Disconnect the battery before working on electrical systems
•Allow the engine to cool before opening any components associated with the cooling system

Symptoms

•Knocking noise that increases with acceleration
•Vibration felt through the steering wheel
•Loss of power during acceleration
•Check engine light may illuminate
•Unusual engine performance or rough idling

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect engine mounts for signs of wear or damage
3
Check transmission fluid level and condition
4
Examine suspension components for wear or damage
5
Identify noise location in engine bay or under vehicle
6
Perform a road test to replicate the noise

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
•Jack and jack stands
•Socket set
•Torque wrench
•Inspection mirror
•Flashlight

Parts Required

•Engine mounts (if needed)
•Transmission fluid (if needed)
•Suspension components (if needed)

Related Faults

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Solution

1. Preparation

Tools Required: OBD-II scanner, jack and jack stands, socket set, torque wrench, inspection mirror, flashlight.
Safety Warnings: Ensure the vehicle is on a flat surface and securely raised with jack stands before working underneath.

2. Inspect and Replace Engine Mounts (if necessary)

Sub-steps:
1. Use a jack to support the engine slightly.
2. Unbolt the engine mounts using the socket set.
3. Remove the old mounts and install the new mounts, ensuring proper alignment.
4. Torque the mounting bolts to manufacturer's specifications (consult repair manual for exact torque values).

3. Check and Replace Transmission Fluid (if necessary)

Sub-steps:
1. Locate the transmission dipstick and remove it.
2. Check the fluid level and condition; it should be a clear red color.
3. If the fluid is low or dirty, drain the old fluid using a fluid pump.
4. Replace with new transmission fluid recommended by the manufacturer.
5. Reinsert the dipstick and check again to ensure proper level.

4. Inspect and Repair Suspension Components (if necessary)

Sub-steps:
1. Safely raise the vehicle and remove the front wheels.
2. Inspect struts, control arms, and bushings for wear or damage.
3. Replace any worn or damaged components with OEM or high-quality parts.
4. Reassemble the suspension and ensure all bolts are torqued to specifications.