Chongqing Yuntu Automobile Trading Co., Ltd.

Chongqing Yuntu Automobile Trading Co., Ltd.

Emergency methods to deal with spark plug failure in Petrol Car

2026 01/15

There are oily deposits on the flower plug because lubricating oil has entered. If the top of the insulator is broken, it may be because the gasoline grade is low. When maintaining Petrol Car, you should pay more attention to the condition of Toyota Car spark plugs. High-performance Toyota Car spark plugs can improve vehicle power performance. Normally, the service life of Toyota Car spark plugs is 15,000 kilometers, and the service life of long-lasting Toyota Car spark plugs does not exceed 30,000 kilometers. However, many car owners' Petrol Car spark plugs often have problems of one kind or another and cannot reach their normal service life.

Fuel Economy Suv Toyota Chr

In fact, the operating temperature of spark plugs in Petrol Car is quite high. When the engine is running normally, the temperature of the spark plug insulator skirt of a Toyota Car generally remains between 500 and 600 degrees Celsius. Temperatures that are too high or too low have a bad impact on the spark plugs of Petrol Car. When the temperature of the spark plug of a Toyota Car is too low, the insulator on the spark plug of a Toyota Car is prone to carbon deposits, eventually causing leakage and misfire. If the operating temperature of the spark plug of a Toyota Car is too high, it can easily cause pre-ignition and engine knocking.
When car owners find scars or damage on the top of the spark plug of a Toyota Car, or melting or ablation of the electrode, it indicates that the spark plug of the Toyota Car has been damaged, and the spark plug of the Toyota Car should be replaced at this time. During the replacement process, car owners can check the symptoms of spark plug ablation and color changes of Petrol Car.
1The electrode is melted and the insulator is white
This phenomenon indicates that the temperature inside the combustion chamber is too high. This may be caused by excessive carbon deposits in the combustion chamber, which causes the valve clearance to be too small, further causing the exhaust valve to overheat or the cooling device to work poorly. When the spark plug of a Toyota Car is not tightened to the specified torque, it will also cause the electrode to melt and the insulator to appear white.
2. The electrode becomes rounded and the insulator has scars.
This indicates that the engine is pre-igniting, which may be caused by premature ignition time, low octane number of gasoline, or high calorific value of the spark plug of Petrol Car.
3. The top of the insulator is broken
Generally speaking, detonation combustion is the main cause of insulator rupture. Premature ignition time, low gasoline octane number, and excessive temperature in the combustion chamber may cause engine knocking and combustion.
4. There are gray and black stripes on the top of the insulator.
The appearance of such streaks indicates that the spark plug of a Toyota Car has leaked, and the owner needs to replace it with a new one unconditionally.