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List of the contents of this article:

• 1, Causes for idling jitter in the vehicle and how to deal with it
• 2. EngineWhere did the idling jitter fail
• 3, What does idling jitter mean
• 4, What is the reason for the strong shaking of the idling engine?
• 5, What is the reason for car engine idling jitter
• 6、Seven reasons for engine jitter
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Causes of idling jitter in vehicles and how to deal with it

1. Serious carbon accumulation in the engine.The most common cause of idling jitter is excessive carbonisation of the throttle valve or fuel nozzle.

2. Severe idling vibration is generally caused by engine cylinder shortage, aging or loose foot glue, carbon accumulation, fuel system failure, etc. Serious carbonisation of the engine: Cars always have the problem of carbonisation, including cylinder carbonization, throttle carbonisation, spark plug carbonation, intake carbonation, etc.

3. The solution to vehicle idling jitter is as follows: the engine carbon accumulation is serious, and the most common cause of car jitter is that the throttle valve is too dirty or the fuel injector nozzle accumulates too much carbon.

4. The common fault points of vehicle idling jitter are: the most common is that the throttle valve is dirty or the throttle valve fails to cause idle jitter. The main reason why the throttle valve is dirty is that there is carbon accumulation at the junction of the shaft of the throttle valve plate and the throttle body, resulting in the opening of the throttle valve not accurate enough, so the idling will Shake.

5. The shaking of the car is not only caused by the engine. If there is a problem with these parts, it will also shake. After driving our car for several years, there will often be idling shaking. The main fault manifestations are that the idling speed is high and low, and the engine speed is irregular. The reason is generally due to the solar terms. It is caused by excessive dirt on the throttle valve or too much carbon accumulation in the fuel injector.

Where did the engine idle jitter fail

The main reason for idle jitter; the most common reason for car jitter is that the throttle valve is too dirty or the fuel injector has too much carbon.

The crankshaft position sensor obtains the ignition timing of each cylinder by judging the crankshaft angle. If there is a problem with the crankshaft position sensor, it will cause obvious idling jitter, which will also be accompanied by engine start-up difficulties.Therefore, when the vehicle is difficult to start and the idle speed is unstable, you can consider checking the crankshaft position sensor.

The engine shake has the following reasons: lack of cylinder: check the cylinder line to see which cylinder line is not on fire. If one cylinder does not work well, the engine will shake due to lack of cylinder. Carbon accumulation: If the car is often idle, the engine will be prone to carbon accumulation, and it is easy to have poor air intake, resulting in engine shaking.



What does idle jitter mean

The idle motor only exists on the wire-pulling throttle valve, which changes through the stepper motor to control the movement of the ball screw. The air intake at idle speed, the idling motor itself is unlikely to have problems. The most common problem is the valve core driven by the ball screw. Long-term idling speed adjustment causes excessive wear and loosening of the valve core, and the ECU cannot accurately control the air intake, resulting in idling jitter.

If the vehicle shakes seriously in the idling state, the reasons are too much carbon accumulation inside the engine, the ignition system failure, the aging of the internal parts of the engine, and the unstable oil pressure. Corresponding repairs should be carried out according to the specific reasons.

It may be an abnormality of the electronic control system: when the internal circuit of the electronic control system is damaged or the contact is poor, it causes the vehicle to shake during idling. It may be a mechanical structure failure: if the piston ring is inelastic or damaged, it will cause the vehicle to shake during idling.

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 a hard object 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.

Idling status refers to a working condition when the engine is idling. When the engine is running, if the accelerator pedal is completely relaxed, the engine will be in an idle state. When adjusting the idle speed, the speed should not be suddenly high and low, otherwise it will cause early wear of the engine. It is better to go to the car maintenance department for adjustment.

The reason for the shaking of the car: too much carbon accumulation. If the carbon accumulation in the engine cylinder is serious, it will cause spark plug blockage and valve blockage, which directly leads to the shaking of the car when idling. If the acceleration ability of the car is not as good as before and the shaking is very long-lasting, you can consider cleaning the inside of the engine cylinder.

What is the reason for the strong shaking of the idling engine?

The reason for the strong shaking of the idling engine: If the car's ignition system fails, it will cause poor ignition system operation, poor spark plug jump condition, etc., which will lead to unstable faults such as movement of the car when idling.

The reason for the shaking of the car: too much carbon accumulation, such asIf the engine cylinder has serious carbon accumulation, it will cause spark plug blockage and valve blockage, which directly leads to the shaking of the car when idling. If the acceleration ability of the car is not as good as before and the shaking is very long-lasting, you can consider cleaning the inside of the engine cylinder.

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

What is the reason for car engine idling jitter

The main reason for idling jitter: serious engine carbonization: cars always have the problem of carbon accumulation, including cylinder carbonization, throttle valve carbonization, spark plug carbonization, Gas accumulated carbon, etc.

The idling shaking of the car engine is due toCaused 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.

The main reason for the shaking of unstable idling vehicles: serious engine carbonization: cars always have carbon accumulation problems, including cylinder carbonization, throttle valve carbonization, spark plug carbonization, intake carbonisation, etc.

The car engine shakes when idling, which is generally caused by the following conditions: the throttle valve is too dirty. The engine is in an idle state after the car is started. At this time, the air needs to constantly pass from the throttle to the cylinder and the gasoline burn.

The main reasons for unstable idling and idling jitter of the vehicle: Serious engine carbon accumulation: Cars always have the problem of carbon accumulation, including cylinder carbonisation, throttle valve carbonation, spark plug carbonization, intake carbonation, etc.

Seven reasons for engine jitter

1. [Pacific Automobile Network] Seven reasons for car jitter: engine cylinder shortage, foot glue aging or looseness, ignition system problems, unstable oil pressure, dirty air filter, high-pressure line breakage and The fuel injector is blocked.

2. Seven reasons for engine shaking, the water temperature is abnormal: the working temperature of the engine has a normal range. If the water temperature is high, the ignition time will be earlier, the oil-gas mixing ratio will change, the oil viscosity will become thinner, and the lubrication performance will deteriorate.

3. The reasons for engine shaking are as follows: engine cylinder deficiency: engineLack of cylinder mainly refers to the abnormal operation of one or more cylinders of the engine. It is usually manifested as the car has obvious intermittent exhaust flow and the exhaust pipe shakes violently, so the engine shaking can be clearly felt, sometimes accompanied by a sudden noise.

4. Car jitter is usually caused by a failure of a component or system. Let's take a look at the seven causes and solutions of car jitter. Ignition system failure: usually jitter caused by the aging of the ignition coil and spark plug, just replace it.

5. The throttle valve is too dirty or the fuel nozzle has too much carbon, and the ignition system has problems. For the problem of the ignition system, it is necessary to check the working condition of the spark plug, high-voltage conductor and ignition coil. The poor operation of the ignition system and the poor condition of the spark plug jumping will also lead to such failures. Too much carbon needs to be cleaned up in time.

6. The main reason for idling jitter; the most common reason for car jitter is that the throttle valve is too dirty or the fuel injector nozzle accumulates too much carbon.

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