What Happens If Spark Plugs Are Never Replaced?
1 Answers
Effects of not replacing spark plugs: If spark plugs are damaged, it can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and most importantly, difficulty in ignition, affecting the normal operation of the vehicle. Severe erosion of spark plugs, including scarring at the top, damage, or melting and erosion of electrodes, indicates that the spark plugs are already damaged and should be replaced. Methods to determine if spark plugs are damaged: Remove the spark plugs and observe them to assess their condition based on the following appearance colors. Normal spark plugs have insulator skirts and electrodes that appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, an electrode gap between 0.8-0.9mm, and no signs of electrode burn. If the spark plug is covered with oil or deposits but is not damaged, it can continue to be used after cleaning off the oil and deposits. If the spark plug is severely damaged, with signs such as scarring, black streaks, cracks, or melted electrodes at the top, the cause of the damage should be identified. After troubleshooting, replace the spark plug with a new one. Additionally, if the spark plug appears black as if smoked, it indicates that the wrong heat range was selected or that the air-fuel mixture is too rich, with oil seeping up.
