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

Toyota Camry XV80 (2025-Present)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

584 words

Problem Statement

Discover the causes and solutions for knocking noise during acceleration in Toyota Camry XV70 (2018-2024). Step-by-step diagnostic and repair guide.

Affected Component

Engine

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting or changing oil.

Symptoms

•Knocking noise when accelerating
•Reduced engine performance
•Vibration felt in the cabin
•Possible check engine light illumination
•Irregular shifting of the transmission

Diagnostic Steps

1
Scan the vehicle’s computer for any error codes using an OBD-II scanner.
2
Inspect the engine and transmission mounts for wear or damage.
3
Check the engine oil level and condition; look for contamination or low levels.
4
Examine the exhaust system for loose components or leaks.
5
Test drive the vehicle to replicate the noise and determine the speed and conditions that trigger it.
6
Inspect the drive shaft and CV joints 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
•Pry bar
•Jack stands
•Oil filter wrench
•Drain pan
•Funnel

Parts Required

•Engine mounts
•Transmission mounts
•Engine oil
•Oil filter
•Exhaust hangers (if necessary)

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Diagnostic Steps

1
Scan the vehicle’s computer for any error codes using an OBD-II scanner.
2
Inspect the engine and transmission mounts for wear or damage.
3
Check the engine oil level and condition; look for contamination or low levels.
4
Examine the exhaust system for loose components or leaks.
5
Test drive the vehicle to replicate the noise and determine the speed and conditions that trigger it.
6
Inspect the drive shaft and CV joints for wear or damage.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working.

2. Inspect and Replace Engine/Transmission Mounts

Tools Required: Socket set, torque wrench, pry bar, jack stands.
Steps:
1. Raise the vehicle using a jack and secure it with jack stands.
2. Locate the engine and transmission mounts.
3. Visually inspect for cracks or degradation.
4. Use a socket set to remove the bolts securing the mounts.
5. Replace damaged mounts with new ones, ensuring proper alignment.
6. Torque the bolts to the manufacturer's specifications.

3. Engine Oil Inspection and Change

Tools Required: Oil filter wrench, drain pan, funnel, new engine oil, and oil filter.
Steps:
1. Remove the oil drain plug and allow old oil to drain completely into the pan.
2. Replace the oil filter using the oil filter wrench.
3. Reinstall the drain plug and torque to specs.
4. Fill with new engine oil using a funnel, checking the level with the dipstick.

4. Exhaust System Inspection and Repair

Tools Required: Wrench set, exhaust hanger tool, and safety goggles.
Steps:
1. Inspect the exhaust system for loose clamps or damaged hangers.
2. Tighten any loose connections using the appropriate wrench.
3. Replace any damaged exhaust components as necessary.

5. Drive Shaft and CV Joint Inspection

Tools Required: Jack stands, socket set.
Steps:
1. Lift the vehicle and secure it with jack stands.
2. Inspect the drive shaft for any signs of damage or excessive play.
3. Check the CV joints for torn boots or wear.
4. Replace any damaged components accordingly.