What's wrong with the engine heating?

Engine overheating usually means that the water temperature of the engine cooling system is too high, but it does not mean that the engine working temperature is too high. There are usually two cases of engine overheating: one is that the cooling system is not working properly, which leads to the heat generated when the engine is working can not be discharged and cooled in time; Another situation is that the engine is not working properly. For example, it takes a long time to start the engine.

What's wrong with the engine heating?

Engine overheating usually means that the water temperature of the engine cooling system is too high, but it does not mean that the engine working temperature is too high. Engine overheating usually has two situations:

One is that the cooling system is not working properly, resulting in the heat generated when the engine is working can not be discharged and cooled in time;

Another situation is that the engine is not working properly. For example, the engine works for a long time with heavy load, and the body temperature is too high; Or the seal of the engine cylinder is damaged, resulting in the leakage of high-temperature gas to the cooling system, or the engine valve timing is problematic, and the engine cylinder body temperature is too high when the high-temperature gas is discharged prematurely due to premature opening of exhaust.

Overheating of the engine is harmful, which will lead to thinning and deterioration of lubricating oil, abnormal wear of the engine, increased working noise of the engine, increased boiling pressure of the cooling system, and falling off of water pipe joints, making the engine unable to work.

The normal working temperature of general automobile engines is between 85 degrees and 105 degrees.

What are the causes of engine jitter?

Engine jitter may be caused by damaged foot pads, lack of cylinder or serious carbon deposition in throttle. If the engine is shaking abnormally, check the foot pad, throttle, ignition coil, spark plug and fuel injector.

Ignition coil and spark plug belong to the ignition system of engine.

Spark plug is a vulnerable part in the ignition system and needs to be replaced regularly. The spark plug has an electrode that can release electric sparks. Only in this way can the combustible mixture in the cylinder be ignited.

The burning combustible mixture can push the piston down and make the engine output power.

With the increase of service time, the electrode gap of spark plug will also become larger, resulting in the weakening of ignition energy.

If the ignition energy is weak, the combustible mixture in the engine can not be fully burned, which will affect the power output and fuel economy of the engine.

If the spark plug is not replaced for a long time, it may cause the spark plug to fail to ignite, resulting in engine cylinder loss.

The ignition coil is directly connected to the spark plug. The ignition coil can increase the voltage. Only when the voltage is high enough can the spark plug have enough ignition energy.

If the ignition coil is damaged, the spark plug will not ignite normally.

If the ignition coil is damaged, it should be replaced immediately.

Engine fever @20 19 What's the matter?