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List of contents of this article:

• 1, What's the matter with car idling jitter?
• 2、What is the reason for engine idling jitter
• 3、 When idling, the engine occasionally shakes!!!

What's the matter with car idling jitter?

1. The drive shaft screw is loose. If the car accelerates and shakes significantly, and it is accompanied by a "click" sound when accelerating rapidly.It is very likely that the screw of the drive shaft of the vehicle is loose or falls off, which is generally caused by rubbing against hard objects while driving. 0 The brake disc becomes thinner. If the brake car shakes when driving at high speed. It is likely that there is a problem with the brake disc.

2. The engine has serious carbonization. The most common reason for car shaking is that the throttle valve is too dirty or the fuel injector has too much carbon.

3. Generally, the obvious idling shaking of the car body is caused by the following four situations: the engine does not clean the carbon accumulation for a long time, and the carbon accumulation is serious.

What is the reason for the engine idling jitter

The closure is not strict, and the EGR valve is not closed when idling A large amount of exhaust gas re-enters the cylinder, causing a change in the concentration of mixed gas. In addition, the intake of air is already low at idle. The introduction of this part of the exhaust gas will cause violent fluctuations in idle speed, accompanied by engine shaking.

Seven major reasons for engine shaking. The air filter is dirty: The air filter is designed to protect the engine and reduce wear. It is generally replaced at about 10,000 kilometers. If the replacement is not timely, it will cause low idle speed due to insufficient air intake, and the engine shake. As long as the filter is replaced, it can be solved.

The idling shaking of the automobile engine is caused by the following reasons: insufficient temperature in the engine: when the temperature in the engine is insufficient, the temperature of fuel and lubricating oil is also insufficient, and it is necessary to increase the amount of fuel injection to meet the power demand. At this time, the spark plug gap is large and the ignition energy is small, resulting in the engine idling and shaking.

When idling, the engine occasionally shakes!!!

1. If your car has unstable failures such as body shaking when idling, it is likely to be caused by the following factors: ignition system problem If the car ignition system fails, it will cause poor ignition system operation, poor spark plug jumping condition, etc., which will lead to the car's idle Unstable faults such as movement occur when speeding up.

2. The use environment of the vehicle and the main operating state of the vehicle determine the idling jitter. The biggest reason for the van is not the carbon accumulation, but the engine foot glue and ignition system.

3. There may be the following four reasons for jitter during idling: serious carbonization in the engine. The most common reason for car jitter is that the throttle valve is too dirty or too much carbonization in the fuel injector.

4. The main reasons for unstable idle speed and idling jitter of the vehicle: serious engine carbon accumulation: cars always have the problem of carbon accumulation, including cylinder carbonization, throttle valve carbonisation, spark plug carbonization, intake carbonisation, etc.

5. The main reason for idling jitter; the most common cause of vehicle jitter is that the throttle valve is too dirty or the fuel injector has too much carbon.