why does my Toyota Corolla E170 (2013-2019) engine make a knocking noise when accelerating

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

493 words

Problem Statement

Learn how to diagnose and fix engine knocking noise in Toyota Corolla E170 (2013-2019). 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 oil drain plug to avoid burns.

Symptoms

•Knocking noise during acceleration
•Loss of power or hesitation
•Rough engine idle
•Increased fuel consumption
•Engine warning light illuminated

Diagnostic Steps

1
Inspect the engine oil level and quality; low or dirty oil can cause knocking.
2
Use an OBD-II scanner to check for any error codes related to engine performance.
3
Listen for the source of the knocking noise by revving the engine while stationary.
4
Inspect the engine mounts for wear or damage that could transmit noise.
5
Check the timing chain/belt for wear, slack, or misalignment.
6
Examine the spark plugs and ignition system for any irregularities.

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
•Oil filter wrench
•Socket set
•Torque wrench
•Jack and jack stands

Parts Required

•Engine oil (0W-20)
•Oil filter
•Spark plugs (if applicable)
•Timing chain/belt (if applicable)

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Diagnostic Steps

1
Inspect the engine oil level and quality; low or dirty oil can cause knocking.
2
Use an OBD-II scanner to check for any error codes related to engine performance.
3
Listen for the source of the knocking noise by revving the engine while stationary.
4
Inspect the engine mounts for wear or damage that could transmit noise.
5
Check the timing chain/belt for wear, slack, or misalignment.
6
Examine the spark plugs and ignition system for any irregularities.

Solution

1. Preparation

Gather necessary tools and parts before starting the repair.
Disconnect the battery to ensure safety.
Gather a clean oil drain pan for oil changes if needed.

2. Change Engine Oil and Filter

Sub-steps:
1. Lift the vehicle using a jack and secure it with jack stands.
2. Place the oil drain pan under the oil pan and remove the drain plug to let the old oil drain completely.
3. Replace the oil filter using an oil filter wrench.
4. Reinstall the drain plug and torque it to the manufacturer’s specifications (typically around 25 ft-lbs).
5. Fill the engine with the correct type and amount of oil (typically 0W-20 for this model).

3. Inspect and Replace Components

Sub-steps:
1. If the timing chain/belt is suspected, remove the timing cover and inspect for wear or slack.
2. If necessary, replace the timing chain/belt according to manufacturer specifications.
3. Check the spark plugs; if worn, replace them with new OEM plugs.
4. Inspect and replace any damaged engine mounts to reduce noise transmission.

4. Reconnect Battery and Test

Sub-steps:
1. Reconnect the battery terminals.
2. Start the engine and listen for any knocking noises.
3. Test drive the vehicle to ensure the issue is resolved.