why does my Toyota Corolla E170 (2013-2019) make a knocking noise when I accelerate?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

500 words

Problem Statement

Diagnose and fix knocking noise during acceleration in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostics, and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the vehicle to cool before performing any maintenance.

Symptoms

•Knocking noise during acceleration
•Vibration felt through the steering wheel or chassis
•Noise occurs more prominently when turning
•Decreased power or sluggish acceleration
•Check engine light may illuminate

Diagnostic Steps

1
Inspect the engine mounts for signs of wear or damage.
2
Check the transmission mounts for looseness or degradation.
3
Examine the CV joints and drive axles for any signs of wear or damage.
4
Test the suspension components, including struts and control arms, for play or damage.
5
Scan for error codes using an OBD-II scanner to identify any related issues.

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
•Pry tool
•CV joint puller
•Torque wrench

Parts Required

•Engine mounts
•Transmission mounts
•CV joints
•Suspension components

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Diagnostic Steps

1
Inspect the engine mounts for signs of wear or damage.
2
Check the transmission mounts for looseness or degradation.
3
Examine the CV joints and drive axles for any signs of wear or damage.
4
Test the suspension components, including struts and control arms, for play or damage.
5
Scan for error codes using an OBD-II scanner to identify any related issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Inspect and Replace Engine and Transmission Mounts

Inspect Mounts:
- Visually inspect engine and transmission mounts for cracks, tears, or separation.
- Use a pry tool to check for excessive movement.
Replace Mounts:
- Use a socket set to remove the bolts securing the mounts.
- Replace with new mounts, ensuring proper alignment.
- Torque the bolts to the manufacturer’s specifications (usually around 30-50 ft-lbs, but verify for exact specifications).

3. Examine and Replace CV Joints

Inspect CV Joints:
- Lift the vehicle and rotate the wheels to check for clicking or popping noises.
- Look for torn CV boot or grease leakage.
Replace if Necessary:
- Remove the wheel and brake components to access the axle.
- Use a CV joint puller to remove the damaged joint.
- Install the new CV joint and reassemble all components, ensuring proper torque specifications.

4. Check and Repair Suspension Components

Inspect Suspension:
- Visually check struts, shocks, and control arms for wear or damage.
Replace Components:
- If damaged, remove the old components using a wrench and socket set.
- Install new components, making sure to torque bolts to the manufacturer's specifications (usually around 75-90 ft-lbs for strut assemblies).