What are the consequences of not replacing the spark plugs?

1. Consequences of not replacing spark plugs:

- Decreased fuel efficiency: Worn out spark plugs can cause incomplete combustion, leading to wasted fuel and decreased mileage.
- Engine misfires: Old spark plugs can misfire, causing rough idling, hesitation, and a decrease in overall engine performance.
- Difficulty starting the engine: A damaged Spark plug can make it harder to start the engine, especially in cold weather.

- Engine damage: Ignoring worn out spark plugs can lead to damage to other engine components, such as the catalytic converter or oxygen sensors.

2. How to tell if a Spark Plug is damaged:
- Visual inspection: Look for signs of wear and tear, such as cracks, chipping, or carbon deposits on the spark plug.
- Engine misfires: If the engine is misfiring or running rough, it could be a sign of a damaged spark plug.
- Difficulty starting the engine: If the engine is hard to start or takes multiple attempts, it could indicate a problem with the spark plug.
- Decreased fuel efficiency: A sudden decrease in fuel efficiency could be a sign that the spark plugs need to be replaced.

- Check engine light: If the check engine light comes on, it could be due to a faulty spark plug

3.What should you pay attention to when replacing spark plugs?

-1. Make sure to use the correct spark plug for your vehicle's make and model. Consult your owner's manual or a professional mechanic for guidance.
-2. Disconnect the battery before starting the replacement process to prevent any electrical accidents.
-3. Use a spark plug socket and ratchet to carefully remove the old spark plugs, being cautious not to damage the threads in the cylinder head.
-4. Inspect the old spark plugs for signs of wear, such as erosion, fouling, or oil deposits, which could indicate a larger issue with your engine.

Spark Plug(FK20HR11)05
-5. Gap the new spark plugs to the manufacturer's specifications using a gap tool, if necessary.
-6. Carefully thread the new spark plugs into the cylinder head by hand to avoid cross-threading, then tighten them with a torque wrench to the specified torque.
-7. Reconnect the battery and start the engine to ensure the spark plugs are working properly.
-8. Monitor your vehicle's performance after replacing the spark plugs to ensure they are functioning correctly and address any issues promptly.