The car does not shake when idling, shakes when driving, and sometimes stalls when stopped

Hello, check the spark plug and the ignition coil as well.

I hope it will help you I wish you a happy driving [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Focus on inspecting these places, the spark plug is fouled and cannot be continuously ignited; The throttle valve is dirty, and the engine intake is not continuous; There is a problem with the matching of the gearbox to the engine; To sum up, no matter which one it is, it is recommended that you go to the 4S store for an inspection.

Hello, it is recommended to clean the oil circuit, replace the gasoline filter, and check whether the spark plug should be replaced [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello. Check the oil pump pressure. Fuel injectors. Hope mine is helpful to you. If you have any questions, you can continue to ask. Have a great day! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello friends, please check the throttle valve, intake pressure sensor, gasoline pump and filter! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

There is a leak in the engine [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, clean the lower throttle injector, change the gasoline filter, and the oil supply is not smooth [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The car shakes from time to time when idling, probably because: 1. The carbon deposit in the engine is serious. It can be said that as long as you drive, there will be carbon deposits, such as long-term idling, slamming on the accelerator and braking, and poor oil quality, which will cause carbon deposits to increase.

There is a problem with the fuel injector, which causes the gasoline to atomize poorly. Solution: Clean or replace the fuel injector.

Throttle blockage. Solution: You can try to clean the throttle first and see if the problem can be solved. If not, you can only replace the throttle.

The oil pressure is unstable. Lack of oil, dirty oil, and thinning of the oil will all lead to unstable oil pressure.

There are many reasons why a car shakes from time to time when it idles. Basically, if there is a problem in any part of the fuel system, air intake system, and ignition system, it may cause the car to shake from time to time when idling.

For example, insufficient air intake, spark plug failure, changes in the amount of fuel injected in the car, carbon in the surface area of the oxygen sensor, etc.

Since you can't see the actual car, you can't make an accurate judgment. The specific cause can only be determined after an inspection by the staff. It is recommended to go to a 4S shop or a professional auto repair shop in time to let the staff check it, and only by determining where the problem is, can the symptoms be repaired.

The cause of car idling, shaking, vibration, and stalling is that the engine has serious carbon deposits, resulting in insufficient gasoline combustion, resulting in engine shaking, shaking, and stalling. Carbon deposits in the engine have a big impact on the car. The first task is to reduce the engine power, even if the power output is uneven, gradually decaying, which will affect the engine stalling.

Carbon deposition in the combustion chamber, if strictly prohibited, will also lead to cylinder knocking, noise from low-speed acceleration, damage to the piston and crankshaft, high engine temperature, and serious impact on car safety. The causes and solutions of car idle jitter are as follows:1

The engine has a lot of carbon deposits, and the common cause of car shake is that the throttle is too dirty or the injector has too much carbon deposit. Solution: Clean the oil circuit, check whether there is carbon deposit in the idle motor, and clean it; 2.

Problems with the ignition system. Check the operation of the spark plugs, high-voltage wires, and ignition coils. Poor ignition systems and poor ignition conditions of the spark plug can also affect this fault phenomenon.

Solution: Check whether the spark plug has too much carbon deposit, and replace the spark plug; 3.The oil pressure is unstable.

If the engine carbon deposit has been removed, the throttle valve has been cleaned, the oil pad and spark plug have been replaced, and the body is still shaking when idling, it is recommended to go to the 4S shop to check whether the oil supply pressure and intake pressure sensors are normal. If the oil supply pressure of the oil pump is abnormal or the value of the intake pressure sensor is incorrect, it will basically cause the body to shake. Workaround:

Check the oil pressure and replace parts if necessary; 4.The aging of engine parts, the shaking and vibration of the car are also related to the aging of the engine feet (also called claw pads). I think the engine foot is the shock absorption system of the engine.

The engine feet are responsible for absorbing slight shaking and vibrations when the engine is turning. If there is a problem with the engine feet, these vibrations can be transmitted to the steering wheel and cab, causing shaking and vibration at idle. Workaround:

Replacement parts.

There are several reasons for engine shake:

1. The engine has serious carbon deposits, and the most common car with serious shake is that the fuel injector throttle valve is too dirty or too much carbon;

2. Ignition system problems, check the working conditions of spark plugs, high-voltage wires and ignition coils;

3. The oil pressure is unstable, if the first pressure of the pump is abnormal or the error and poor work of the inlet pressure sensor will cause the body to shake;

4. Aging of engine parts; Excessive carbon deposits in engine emissions absorb carbon from the gasoline of the cold-start injector, which leads to a dilute cold-start mixture and difficulty starting.

Specific solutions to idle jitter:

1. The engine has serious carbon deposits. The most common cause of idle judder is excessive carbon build-up on the throttle or injector. When there is too much carbon deposit inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by the carbon deposit, resulting in a mixture that is too thin and making it difficult to start.

After landing, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine and burned, which will thicken the mixture. The mixture is sometimes dilute and sometimes thick, which will cause idle jitter after cold start. The lower the temperature, the greater the amount of oil required for cold starting, and the more carbon deposits will affect cold starting.

The solution is to clean the carbon deposits at the throttle and injector.

2. Poor ignition system and poor ignition of spark plugs will also lead to engine idling and shaking. If there is a problem, check whether there is a fault in the ignition tether system and whether the spark plug has too much carbon.

3. The oil pressure is unstable. If you have cleaned the carbon deposits in the engine, cleaned the throttle valve or replaced the spark plug, and there is still the problem of body shaking when idling, it is recommended to go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal. If the oil pump supply pressure is not normal or the intake pressure sensor is incorrect, it can also cause the body to shake when idling.

4. The best way is to clean the oil circuit, clean it regularly, there is no specific experience in the research and development parameters of the clean engine from the beginning of the new car, coupled with the continuous improvement of emission standards, can not adapt to the change of fuel, all manufacturers of the engine are unable to solve this jitter problem in the short term, plus the fuel quality is not very good or the initial fuel of the new car is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and lead to no good fuel can participate in combustion in the later stage. The occurrence of excessive carbon deposits is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits. The use of PNF dope fuel additives can solve the problems caused by carbon deposition.

Vehicle Idle Jitter:

1 The most common is that the throttle is dirty or the throttle valve is faulty, which will lead to idle shaking, and the main reason for the dirty throttle valve is that there is carbon deposition at the junction of the shaft brother of the throttle valve plate and the throttle body, resulting in the throttle opening is not accurate enough, so the idle speed will shake. So we can clean the throttle first, if it does not shake after cleaning, it means that the throttle is dirty, if it is still shaking after cleaning, then it may be that the throttle assembly is damaged, and the throttle assembly needs to be replaced.

2. The quality of gasoline is not good, resulting in poor atomization effect of the fuel injector, and the mixture is not fully burned in the cylinder, so it will also lead to idle shaking.

3 The spark plug does not ignite, causing one or more cylinders to not work, which will also cause idle jitter. Check the spark plug If there is a crack in the ceramic part of the spark plug, you also need to check whether the fire module of the lower point training hall is normal.

The reason for the idle shake and stalling of the car is that the engine has serious carbon deposits, resulting in insufficient gasoline combustion, so that the engine will shake and stall. Engine carbon deposition has a great impact on the car, first of all, it reduces the engine power, that is, the power output is uneven and gradually decays, which will lead to engine stalling; Carbon deposition in the combustion chamber will also cause cylinder detonation in serious cases, and there will be a sound of low-speed acceleration, which will cause damage to the piston and the Qusun laughing shaft, causing high temperature of the engine and seriously affecting the safety of the car.

The causes of car idling and shaking are as follows

1. The engine has serious carbon deposits, and the most common reason for car shaking is that the throttle is too dirty or the fuel injector is too much carbon. Solution: Clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned;

2. Ignition system problems, check the working conditions of spark plugs, high-voltage wires and ignition coils, poor ignition system work, and poor spark plug flashing conditions will also lead to this kind of fault phenomenon. Solution: Check whether the spark plug has too much carbon deposit, replace the spark plug;

3. The oil pressure is unstable, if the engine carbon deposit has been cleaned, the throttle has been washed, the oil pad and spark plug have been replaced, etc., and the body is still found to shake when idling, it is recommended to go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal. Solution: Check the oil pressure and replace the parts if necessary;

4. The aging of engine parts and the shaking of the car are also related to the aging of the engine foot (also known as the claw pad). The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorbing the subtle shake of the engine when it is running, and if there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel and cab, causing shaking when idling. Workaround:

Replacement parts. Millions of car purchase subsidies.

The main reasons for unstable idling and jitter:

1.Serious engine carbon deposits: Cars always have the problem of carbon deposits, including cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc.

When the engine has too much carbon deposit, it will affect the ignition energy, air intake efficiency and air-fuel ratio of the car, resulting in the unstable power output of the car, and the phenomenon of idle speed and acceleration jitter appears.

2.Unstable oil pressure: If you have cleaned the engine carbon deposits, cleaned the throttle, replaced the oil gasket and spark plug, etc.

And when idling, you still find that the body shakes, it is recommended that you go to the 4S shop to check whether the oil supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is abnormal, or the intake pressure sensor value is wrong, and the work is not good, it will cause the body to shake.

3.Engine cylinder shortage: Engine cylinder deficiency mainly refers to the engine one or more cylinders are not working properly, which is generally manifested as:

The exhaust fumes coming out of the car are obviously intermittent, and the exhaust pipe shakes violently, and the engine shake can be clearly felt, sometimes accompanied by abnormal noises. This is mostly related to ignition coil failure.

4.Aging of motor parts: Car shake is also related to the aging of engine feet (also known as claw pads).

The engine foot is actually the shock absorber system of the engine. The engine feet are responsible for absorbing slight vibrations when the engine is running. If there is a problem with the engine base, these vibrations can be transmitted to the steering wheel and cab, causing vibrations in the event of a sluggish speed.

Workaround:The best way is to clean the oil circuit, clean it regularly, and use PNF fuel additives to solve the above problems caused by carbon deposits. The fuel quality is not very good or the initial fuel of the new car is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel, resulting in no good smooth spike fuel in the later stage can participate in combustion, and the carbon deposition exceeds the standard, which is especially common for the National VI car. We can only gradually alleviate most of the problems by maintaining clean oil circuits.

Once the engine starts, it runs well from low to high speeds, but it stalls as soon as you release the accelerator pedal. Or first it runs unstable, then it shuts down. This phenomenon can be judged as an idle flameout fault.

When the idle speed is turned off, adjust the idle speed according to the actual situation. After adjustment, if the faulty tung hole disappears, it means that the idling screw is not properly adjusted; If the fault does not go away after adjustment, open the throttle to keep the engine running, and check the carburetor and intake pipe gasket with cotton yarn or paper for air leaks. If there is no air leakage, remove the idle measuring hole for inspection, blow through the idle oil duct at the same time, and then reassemble the test; If the fault disappears, the idle metering hole and the idle oil duct are blocked.

For carburetors fitted with start-stop valves, check that the shut-off solenoid valve circuit is normal. If the idle fuel-saving metering hole is blocked due to abnormal coil circuit, the socks solenoid valve should be repaired to cut off. When the engine is idling, it runs unsteadily, and the exhaust pipe makes a "protruding, propering" sound, which is generally unstable at idling.

Stabilize the engine at a certain speed and listen for leaks.