my Toyota Corolla E170 (2013-2019) engine shakes when I start it what's wrong

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

595 words

Problem Statement

Learn how to diagnose and fix engine shaking during startup in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostics, and repairs.

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 engine components to cool before handling to avoid burns

Symptoms

•Engine vibrates excessively at startup
•Possible rough idle after starting
•Check engine light may illuminate
•Unusual noises from the engine compartment
•Reduced power during acceleration
•Increased fuel consumption

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the engine mounts for wear or damage that could cause excessive movement
3
Check the condition of the spark plugs and ignition coils for signs of misfire
4
Examine the fuel system components, including fuel pressure and filter condition
5
Perform a visual inspection of the vacuum hoses for leaks or disconnections
6
Test the engine for any abnormal sounds using a stethoscope or listening device

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
•Vacuum gauge
•Pry bar
•Screwdriver

Parts Required

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

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the engine mounts for wear or damage that could cause excessive movement
3
Check the condition of the spark plugs and ignition coils for signs of misfire
4
Examine the fuel system components, including fuel pressure and filter condition
5
Perform a visual inspection of the vacuum hoses for leaks or disconnections
6
Test the engine for any abnormal sounds using a stethoscope or listening device

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to prevent electrical shorts.
Allow the engine to cool if it has been running.

2. Inspect and Replace Engine Mounts

Tools Required: Socket set, torque wrench, pry bar
Instructions:
1. Lift the vehicle securely using jack stands.
2. Locate the engine mounts (typically, there are three or four).
3. Use the pry bar to gently lift the engine and relieve pressure on the mounts.
4. Remove the bolts securing the damaged mounts using the socket set.
5. Replace with new engine mounts, ensuring they are aligned correctly.
6. Torque the bolts to the manufacturer's specifications (consult service manual for exact torque values).

3. Replace Spark Plugs and Ignition Coils (if necessary)

Tools Required: Socket set, torque wrench, gap gauge
Instructions:
1. Remove the ignition coil covers, if applicable.
2. Disconnect the ignition coils from the wiring harness.
3. Remove the coils from the spark plugs.
4. Extract old spark plugs using a socket wrench.
5. Check the gap on the new spark plugs using a gap gauge and adjust if needed.
6. Install new spark plugs and torque them to the specified value (typically around 13-15 ft-lbs).
7. Reinstall the ignition coils and reconnect the wiring harness.

4. Check and Repair Vacuum Leaks

Tools Required: Vacuum gauge, hose clamp, screwdriver
Instructions:
1. Start the engine and allow it to idle.
2. Use the vacuum gauge to check for proper vacuum levels.
3. Inspect all vacuum hoses for cracks or disconnections and replace any that are damaged.
4. Ensure that all connections are tight and secure.