What are the manifestations of spark plug failure?The performance of the spark plug problem

The spark plug is an important part of the engine. Although this part does not look big, it plays an important role. The spark plug failure will directly affect the operation of the engine.

The symptoms of spark plug failure are as follows:

1. The car's ignition is poor, or even unable to start, and often requires multiple ignitions;

2. Insufficient power, it is obvious that the car is weak during driving;

3. Fuel consumption increases. Compared with usual, cars consume more fuel;

4. The engine shakes, and the shake of the vehicle can be felt during driving;

5. The flameout phenomenon occurs, and flameout is easy to occur during driving;

6. Exhaust gas emission is not up to standard, fuel combustion is insufficient due to spark plug failure, and the gas content produced does not meet the requirements.

For spark plugs, car owners should also maintain and replace them in time. The service cycle of spark plugs is related to the electrode material, spark plug brand and other factors. Generally, ordinary nickel alloy spark plugs need to be replaced once when they are used for about 20,000 kilometers. The service cycle is the shortest; platinum alloy spark plugs It can be replaced at about 40,000 kilometers; the iridium spark plug can be replaced at about 60,000-80,000 kilometers, with a long service life. But these are just some reference values, and it depends on the usage of the spark plug.

The spark plug material grade classification roughly includes nickel alloy spark plug, platinum spark plug, iridium platinum spark plug, iridium spark plug, iridium platinum spark plug and iridium spark plug of these materials are good.

In addition to choosing the spark plug material, car owners should also pay attention to the choice of spark plug calorific value. It is best to choose the calorific value that matches the original car. If the calorific value is too large or too small, it will have a certain impact.

If the calorific value is reduced, the phenomenon of insufficient combustion of the oil and gas mixture may occur, and the situation of insufficient power may be felt, and the temperature of the spark plug may even be too high due to insufficient heat dissipation, which may further cause deflagration and other phenomena. If the heat value of the spark plug is increased, the heat dissipation capacity will be stronger, the temperature of the spark plug will drop faster, and the ignition head will easily produce carbon deposits, which will cause electricity to run and the spark plug will not jump out of the fire.