As one of the components of the automotive ignition system, the spark plug is no less important than other components. If something goes wrong with it, the overall performance of the car suffers.
Let's take a look at how it works and how it works, and when the spark plug must be replaced.
The role of spark plugs
If the engine is the heart of the car, then the spark plug is the heart of the engine.
△ Structure of the spark plug
Gasoline engines have at least one spark plug per cylinder, and high-performance engines have two spark plugs per cylinder. The performance and operating conditions of the spark plug directly affect the operating state of the engine.
What symptoms do I need to replace the spark plug?
1. The acceleration is not smooth
If you find that the acceleration is weak when driving, or if you accelerate one by one, the acceleration of the car has no linear sense, which is likely to be caused by the decline in the performance of the spark plug. This is due to the fact that the electrode gap of the spark plug is too large, and the ability to ignite is unstable or cannot be ignited at all, resulting in the car accelerating weakly or frustrated, which means that the spark plug should be replaced.
2. Increased fuel consumption
If you find that the car is more and more fuel consumption, and the power loss is relatively large, there is no smooth feeling of driving up before, always when accelerating, it feels that the car is weak, and it is difficult to go uphill, similar to the situation of this car, we can also consider whether the spark plug should be replaced.
3. Difficulty in cold start
The car starts more difficult, this time you can also check whether the spark plug gap is too large, the ignition energy is weak, resulting in the mixture can not be ignited in time. Of course, the car is difficult to start, and it may be caused by other problems.
4. Engine idle jitter
The engine is idling, and when we sit in the car and hold the steering wheel, we can feel the engine shaking, as if it is "shivering". When the engine speed rises, the jitter phenomenon disappears, and the acceleration of the accelerator no longer appears jitter, which can indicate that the performance of the spark plug has begun to decline, but it has not yet completely struck. You can check whether the fireworks plug has reached the replacement cycle, and replace it in time to avoid problems in the future.
In addition, over time, after a period of use, the performance of the spark plug will gradually decline, especially the inferior spark plug, the service life is very short, easy to have problems, resulting in many engine secondary failures.