my Toyota Corolla E170 (2013-2019) has a check engine light and it’s shaking

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

536 words

Problem Statement

Learn how to diagnose and fix engine shaking and check engine light 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.
•Allow the engine to cool before working on any components to avoid burns.

Symptoms

•Check engine light illuminated
•Engine shaking or vibrating during idle and acceleration
•Rough idle when stopped
•Decreased engine power
•Increased fuel consumption

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect engine mounts for signs of wear or damage that may cause excessive vibration.
3
Check spark plugs and ignition coils for wear, misfiring, or damage.
4
Test fuel pressure to ensure adequate fuel delivery to the engine.
5
Inspect the intake and vacuum hoses for leaks or blockages.
6
Perform a visual inspection of the exhaust system for any signs of leaks or blockages.

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
•Multimeter
•Fuel pressure gauge
•Basic hand tools

Parts Required

•Spark plugs
•Ignition coils
•Engine mounts (if necessary)
•Vacuum hoses (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect engine mounts for signs of wear or damage that may cause excessive vibration.
3
Check spark plugs and ignition coils for wear, misfiring, or damage.
4
Test fuel pressure to ensure adequate fuel delivery to the engine.
5
Inspect the intake and vacuum hoses for leaks or blockages.
6
Perform a visual inspection of the exhaust system for any signs of leaks or blockages.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the battery to ensure safety while working on electrical components.
Tools required: OBD-II scanner, socket set, torque wrench, multimeter, fuel pressure gauge, and basic hand tools.

2. Replace Spark Plugs and Ignition Coils

Remove the engine cover if applicable using the socket set.
Disconnect the ignition coil connectors.
Unscrew the ignition coil bolts and remove the coils.
Remove the spark plugs using a spark plug socket.
Inspect the old spark plugs for wear; replace them with new spark plugs if necessary.
Install new ignition coils by reversing the removal steps and torqueing to manufacturer's specifications (usually around 14-16 ft-lb).

3. Inspect and Replace Engine Mounts (if necessary)

Lift the vehicle using a jack and secure with jack stands.
Locate the engine mounts and inspect for cracks or excessive wear.
If damaged, remove the bolts securing the mount to the engine and chassis.
Replace with new engine mounts and torque bolts to specified values (check service manual for exact torque specs).

4. Check for Vacuum Leaks

Start the engine and listen for any hissing sounds indicative of a vacuum leak.
Spray a mixture of water and soap around the intake and vacuum hoses.
If bubbles form, replace the leaking hoses; ensure all connections are tight.