my Toyota Corolla E170 (2013-2019) check engine light is on and car shakes, what does it mean?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

488 words

Problem Statement

Learn how to diagnose and fix check engine light and shaking issues 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.
•Relieve fuel system pressure before servicing the fuel filter to prevent fuel spray.

Symptoms

•Check engine light illuminated
•Vehicle shakes during idle and/or acceleration
•Rough engine idle
•Decreased fuel efficiency
•Possible engine stalling

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Check the engine oil level and condition; look for contamination or low levels.
3
Inspect engine mounts for wear or damage that may cause shaking.
4
Test ignition system components (spark plugs, coils) for proper function.
5
Examine the fuel system, including fuel filter and injectors, for blockages or failures.
6
Inspect for vacuum leaks in hoses and intake manifold.

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
•Fuel line disconnect tool
•Torque wrench
•Pry bar

Parts Required

•Spark plugs (if necessary)
•Ignition coils (if necessary)
•Fuel filter (if necessary)
•Engine mounts (if necessary)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Check the engine oil level and condition; look for contamination or low levels.
3
Inspect engine mounts for wear or damage that may cause shaking.
4
Test ignition system components (spark plugs, coils) for proper function.
5
Examine the fuel system, including fuel filter and injectors, for blockages or failures.
6
Inspect for vacuum leaks in hoses and intake manifold.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to ensure safety while working on electrical components.

2. Replace Faulty Ignition Components

Sub-step 1: Remove engine cover (if applicable) using a socket set.
Sub-step 2: Disconnect the ignition coils from the electrical connectors.
Sub-step 3: Remove the ignition coils and inspect spark plugs for wear.
Sub-step 4: Replace worn spark plugs with new ones, ensuring the correct gap is set (typically 0.043 inches for Corolla).
Sub-step 5: Reinstall ignition coils and reconnect electrical connectors.

3. Inspect and Replace Fuel Filter

Sub-step 1: Locate the fuel filter (check the owner's manual for specific location).
Sub-step 2: Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
Sub-step 3: Disconnect fuel lines from the filter using a fuel line disconnect tool.
Sub-step 4: Remove the old fuel filter and install the new one, ensuring correct orientation.
Sub-step 5: Reconnect fuel lines and reinstall the fuel pump fuse.

4. Check Engine Mounts

Sub-step 1: Visually inspect engine mounts for cracks, tears, or excessive wear.
Sub-step 2: Use a pry bar to check for excessive movement in the mounts.
Sub-step 3: Replace any damaged engine mounts with new ones, ensuring all bolts are torqued to specifications.

5. Reconnect Battery and Clear Codes

Sub-step 1: Reconnect the battery terminals securely.
Sub-step 2: Use the OBD-II scanner to clear any error codes from the vehicle's computer.
Sub-step 3: Start the vehicle and observe for any remaining issues.

Tools Required:

OBD-II scanner
Socket set
Fuel line disconnect tool
Torque wrench
Pry bar

Parts Required:

Spark plugs (if necessary)
Ignition coils (if necessary)
Fuel filter (if necessary)
Engine mounts (if necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Relieve fuel system pressure before servicing the fuel filter to prevent fuel spray.