What are the symptoms that indicate a car's spark plugs need replacement?
1 Answers
The symptoms indicating that a car's spark plugs need replacement are: 1. Difficulty starting the car or failure to start; 2. Carbon buildup on the spark plugs; 3. Abnormal sparking from the spark plugs; 4. Engine idling roughly. The types of spark plugs include: 1. Standard spark plugs; 2. Insulator-tip spark plugs; 3. Electrode-type spark plugs; 4. Seat-type spark plugs; 5. Multi-electrode spark plugs; 6. Surface-gap spark plugs. The working principle of spark plugs is: Under the control of the engine, the high voltage generated by the ignition coil is introduced into the engine cylinder, creating a spark between the electrodes of the spark plug to ignite the air-fuel mixture, enabling the engine to operate normally.