Skoda Octavia NFL (2020-Present) engine shaking at idle, what could it be

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, vacuum gauge, fuel injector cleaner.
• Safety Warnings: Disconnect the battery before starting any electrical work. Allow the engine to cool before working on components.

2. Address Engine Mounts

• Step 1: Raise the vehicle and secure it on jack stands.
• Step 2: Visually inspect the engine mounts for cracks or excessive wear.
• Step 3: If damaged, remove the bolts securing the mounts using a socket set.
• Step 4: Replace with new engine mounts and torque bolts to manufacturer specifications.

3. Repair Vacuum Leaks

• Step 1: Use a vacuum gauge to check for leaks in the intake system.
• Step 2: Inspect all vacuum hoses and gaskets. Replace any that show signs of wear or damage.
• Step 3: Seal any other identified leaks using appropriate gasket sealant.

4. Clean Fuel Injectors

• Step 1: Remove the fuel rail and injectors from the engine.
• Step 2: Use a fuel injector cleaning kit to clean each injector according to the manufacturer's instructions.
• Step 3: Reinstall the injectors and ensure they are securely seated in the fuel rail.

5. Replace Spark Plugs and Ignition Coils

• Step 1: Remove the ignition coils by disconnecting the electrical connectors and unscrewing them.
• Step 2: Remove the spark plugs using a spark plug socket.
• Step 3: Install new spark plugs, ensuring proper gap settings as per the manufacturer’s specifications.
• Step 4: Reinstall the ignition coils.

6. Inspect Throttle Body

• Step 1: Remove the throttle body from the intake manifold.
• Step 2: Clean the throttle body using throttle body cleaner and a soft cloth to remove carbon deposits.
• Step 3: Reinstall the throttle body and ensure all connections are secure.