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

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

577 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

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 components.
•Allow the engine to cool if it has been recently running.
•Ensure the engine is cool before draining oil to avoid burns.
•Wear eye protection when cranking the engine.

Symptoms

•Knocking noise from the engine, especially during acceleration
•Decreased engine performance or power loss
•Rough idle or engine vibrations
•Check engine light illuminated
•Increased engine temperature

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for error codes.
2
Check the engine oil level and condition; look for any signs of contamination.
3
Inspect the engine for loose or damaged components (e.g., mounts, belts).
4
Listen for the knocking noise at different RPMs to isolate the source.
5
Check for any leaks in the engine bay that might indicate a failing part.
6
Perform a compression test on the cylinders to assess engine health.

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
•Oil filter wrench
•Compression tester
•Torque wrench
•Wrenches
•Ratchet set

Parts Required

•Engine oil (0W-20 or 5W-20)
•Oil filter
•Timing belt/chain (if needed)
•Engine mounts (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for error codes.
2
Check the engine oil level and condition; look for any signs of contamination.
3
Inspect the engine for loose or damaged components (e.g., mounts, belts).
4
Listen for the knocking noise at different RPMs to isolate the source.
5
Check for any leaks in the engine bay that might indicate a failing part.
6
Perform a compression test on the cylinders to assess engine health.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the battery to ensure safety while working on electrical components.
Allow the engine to cool if it has been recently running.

2. Inspect and Change Engine Oil

Sub-steps:
- Use a socket set to remove the oil drain plug.
- Drain old engine oil into a suitable container.
- Replace the oil filter using an oil filter wrench.
- Reinstall the drain plug and torque it to the manufacturer's specification (usually around 30 ft-lbs).
- Fill with fresh engine oil as specified in the owner’s manual (typically 0W-20 or 5W-20).
Tools Required: Socket set, oil filter wrench, oil catch pan.
Safety Warnings: Ensure the engine is cool before draining oil to avoid burns.

3. Inspect Engine Components

Sub-steps:
- Visually inspect the timing chain or belt for wear or damage.
- Check engine mounts for cracks or excessive wear.
- Look for signs of rod knock or valve noise; remove the valve cover if necessary to inspect.
Tools Required: Wrenches, ratchet set, torque wrench.
Safety Warnings: Disconnect battery before working on electrical components.

4. Compression Test

Sub-steps:
- Remove all spark plugs using a spark plug socket.
- Insert the compression gauge into the spark plug hole and crank the engine.
- Record the compression readings and compare them to specifications.
Tools Required: Compression tester, spark plug socket.
Safety Warnings: Wear eye protection when cranking the engine.

5. Addressing Identified Issues

Sub-steps:
- Replace any worn or damaged components found during inspections (e.g., timing belt, engine mounts).
- If compression is low, consider further disassembly for repairs such as replacing piston rings or bearings.
Tools Required: Various hand tools depending on specific repairs needed.