What Happens If the Spark Plug Model Doesn't Match?

[OJesse]

Using the wrong spark plug model will inevitably cause knocking and overheating, leading to unstable engine speed or weak driving performance. Steps for replacing spark plugs: Open the engine hood, lift the plastic cover of the engine, remove the high-voltage distributor wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for external debris like leaves or dust and ensure they are cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the removed high-voltage distributor wires in the firing order, then secure the cover. If the spark plug is damaged, it can directly cause issues like electrical leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and most importantly, difficulty in starting, affecting the vehicle's normal operation. Severe spark plug erosion, such as scarring at the tip, broken or melted electrodes, or burn marks, indicates that the spark plug is damaged and should be replaced.