When the engine vibrates, replacing spark plugs may solve the problem, but not all vibrations are related to Car Spark Plugs, so the cause must be determined first. The function of spark plugs is to ignite the air-fuel mixture in the engine cylinders. If they have issues, resulting in insufficient or uneven ignition, the engine is prone to vibration.
For example, if spark plugs are worn out after long-term use, have excessive carbon deposits, or the electrode gap becomes too large, the ignition effect will be affected. In such cases, after replacing with new Car Spark Plugs, the ignition returns to normal, and the vibration usually disappears. Especially when there is vibration during cold start or acceleration, and the vehicle has a long mileage, it is likely caused by aging spark plugs.
However, if the problem is carbon deposits on the engine throttle, fuel injector failure, air intake leakage, etc., simply replacing Car Spark Plugs will not work. It is recommended to first check the condition of the spark plugs briefly; if signs of aging are found, replace them. If the vibration still exists after replacement, further inspection of other components is necessary. In addition, the spark plugs selected must match the vehicle model specifications to avoid new problems caused by mismatched models.
