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

593 words

Problem Statement

Diagnose and fix knocking noise during acceleration in Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic steps 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 draining oil or inspecting components.

Symptoms

•Knocking noise during acceleration
•Possible vibration felt through the vehicle
•Decreased engine performance or power
•Unusual engine behavior (e.g., rough idling)
•Check engine light may be illuminated (if related to engine issues)

Diagnostic Steps

1
Inspect the engine and transmission mounts for signs of wear or damage.
2
Scan the vehicle's OBD-II system for any error codes that may provide insight into engine performance issues.
3
Check the oil level and quality; low or dirty oil can cause knocking sounds.
4
Examine the exhaust system for loose components or leaks that may contribute to noise.
5
Inspect the drive belts and pulleys for wear or improper tension.
6
Test the ignition system components (spark plugs, ignition coils) for proper functioning.

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

•Socket set
•Torque wrench
•Pry bar
•Oil filter wrench
•Oil catch pan
•Jack stands
•Multimeter
•OBD-II scanner

Parts Required

•Engine and/or transmission mounts
•Engine oil and oil filter
•Drive belts
•Spark plugs (if worn)

Related Faults

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Diagnostic Steps

1
Inspect the engine and transmission mounts for signs of wear or damage.
2
Scan the vehicle's OBD-II system for any error codes that may provide insight into engine performance issues.
3
Check the oil level and quality; low or dirty oil can cause knocking sounds.
4
Examine the exhaust system for loose components or leaks that may contribute to noise.
5
Inspect the drive belts and pulleys for wear or improper tension.
6
Test the ignition system components (spark plugs, ignition coils) for proper functioning.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Engine/Transmission Mounts

Tools Required: Socket set, torque wrench, pry bar
Remove the bolts securing the engine mounts to the engine block and chassis.
Use a pry bar to lift the engine slightly and remove the old mounts.
Install new mounts and torque bolts to the manufacturer’s specifications.

3. Change Engine Oil and Filter

Tools Required: Oil filter wrench, oil catch pan, socket set
Drain the old engine oil by removing the oil drain plug.
Replace the oil filter using an oil filter wrench.
Reinstall the drain plug and fill with new oil, ensuring to use the correct type and viscosity as specified in the owner’s manual.

4. Inspect Exhaust System

Tools Required: Wrench set, jack stands
Raise the vehicle safely using jack stands.
Inspect exhaust pipes, hangers, and connections for looseness or damage.
Tighten any loose bolts or replace damaged components as necessary.

5. Check and Replace Drive Belts

Tools Required: Socket set, belt tension gauge (if applicable)
Inspect drive belts for cracks, wear, or improper tension.
Replace any worn or damaged belts, ensuring they are properly aligned and tensioned.

6. Test Ignition System Components

Tools Required: Spark plug socket, multimeter
Remove spark plugs and inspect for wear or deposits.
Test ignition coils with a multimeter for continuity and resistance.
Replace any faulty components and reassemble.