why is my Toyota Corolla E170 (2013-2019) making a knocking noise

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

543 words

Problem Statement

Diagnose and fix knocking noise in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, 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 opening the oil drain plug to avoid burns.

Symptoms

•Knocking noise when accelerating or decelerating
•Noise present during idling
•Vibration felt through the steering wheel
•Loss of power during acceleration
•Check engine light may be illuminated

Diagnostic Steps

1
Inspect the engine for loose or damaged components, including mounts and brackets.
2
Use an OBD-II scanner to check for any error codes related to engine performance.
3
Check the engine oil level and condition; look for signs of contamination.
4
Conduct a visual inspection of the suspension components, including struts, shocks, and control arms.
5
Test drive the vehicle to pinpoint the source of the noise (engine compartment vs. undercarriage).
6
Listen for variations in the noise while turning the steering wheel to rule out steering components.

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
•Oil catch pan
•Oil filter wrench
•Jack and jack stands

Parts Required

•Engine oil (5W-20 or 0W-20)
•Oil filter
•Suspension components (if damaged)

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Diagnostic Steps

1
Inspect the engine for loose or damaged components, including mounts and brackets.
2
Use an OBD-II scanner to check for any error codes related to engine performance.
3
Check the engine oil level and condition; look for signs of contamination.
4
Conduct a visual inspection of the suspension components, including struts, shocks, and control arms.
5
Test drive the vehicle to pinpoint the source of the noise (engine compartment vs. undercarriage).
6
Listen for variations in the noise while turning the steering wheel to rule out steering components.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the engine is turned off.
Disconnect the negative terminal of the battery to prevent electrical shorts during repairs.

2. Engine Component Inspection

Reconnect the battery and start the engine.
Inspect the engine mounts:
- Tools Required: Socket set, torque wrench.
- Sub-steps:
  - Check for cracks or excessive wear on mounts.
  - Tighten any loose bolts to manufacturer specifications (typically around 30-50 ft-lbs).

3. Oil Change (if oil is contaminated)

Drain the old engine oil:
- Tools Required: Oil catch pan, socket set, oil filter wrench.
- Sub-steps:
  - Place the oil catch pan under the oil pan.
  - Remove the oil drain plug and allow oil to fully drain.
  - Replace the oil filter.
  - Reinstall the drain plug and torque it to 25 ft-lbs.
Refill with new oil (5W-20 or 0W-20 as specified).

4. Suspension Component Repair

Inspect and replace worn suspension parts:
- Tools Required: Jack and jack stands, socket set, torque wrench.
- Sub-steps:
  - Lift the vehicle and secure it on jack stands.
  - Inspect struts, shocks, and control arms for damage or wear.
  - Replace any faulty components and torque to manufacturer specifications (varies by component).

5. Final Assembly and Testing

Reassemble any components removed during inspection.
Start the engine and listen for the knocking noise.
Test drive the vehicle to ensure the noise has been resolved.