What is the reason for the engine idle speed of 4G63 for 3 5 seconds?

This situation is the reason why the throttle is dirty, and it is recommended that you go to clean up the carbon deposits on the lower throttle, replace the spark plug, and take a look.

Hello! In this case, it is mainly due to the fact that there is a problem with the engine idling, and the idle valve needs to be replaced.

Hello, your situation is generally caused by excessive carbon deposition in the engine, it is recommended to go to the 4S store to check!

Hello, this situation may be the reason why the throttle is too large, you can go to the 4S shop to clean the throttle, clean the fuel injector, and check the ignition performance of the spark plug.

Summary. If the idle speed shakes, it proves that the engine system has a fault code. It is mainly related to the following aspects.

First, use the computer to check the engine system to see if there is a fault code, and then ignite the spark plug of the coil to see if there is any misfire.

The second fuel injector to see if there is leakage or poor atomization, and whether there is too much internal carbon deposit, first clean the carbon deposit.

Third, the smoke agent of the intake system is not caused by abnormal combustion of the gas mixture.

What is the reason for the 4G64 engine idling shake acceleration and one meal.

Hello, don't click to end, I'm textual to give you the full answer, 2-3 minutes.

If the idle speed shakes, it proves that the engine system has a fault code. It is mainly related to the following aspects. First, the first unit first uses a computer to test the engine system to see if there is a fault code, and then ignites the spark plug of the coil to see if there is a fire.

The second fuel injector to see if there is leakage or poor atomization, and whether there is too much internal carbon deposit, first clean the carbon deposit. Third, the smoke agent of the intake system is not caused by abnormal combustion of the gas mixture.

Ask about custom messages].

Causes of engine idle jitter:

1. Engine intake pipe leakage; There are many intake manifolds or various valves in the intake system, and the leakage of them will cause the gas that should not enter, resulting in the concentration of the mixed gas in the intake manifold being too high or too low, and eventually causing the engine to have intermittent shaking or weakness at idle;

2. Fuel system blockage or failure; Due to the blockage of the vent of the fuel tank cover, the fuel tank switch, fuel filter and the oil pipe between the fuel tank and the carburetor are partially blocked, resulting in the car not being able to get the corresponding fuel amount when idling, resulting in the mixture becoming thinner, the engine power output becoming weaker, and the idle speed shaking;

3. Idle control valve failure; The ECU will control the opening of the idle control valve according to the engine speed, temperature, throttle switch and other signals, so as to maintain the stability of the engine idling. Once the failure occurs, the air intake volume will be unevenly distributed, the power will be high and low when the engine is idling, and the vehicle will shake;

4. Engine carbon deposition problem; The carbon deposits here include cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc., these positions are just closely related to the power output of the engine, when the carbon deposits inside the engine are too much, the ignition energy of the car is reduced, and the intake efficiency decreases, which ultimately leads to the unstable power output of the engine, idle shaking, and weak acceleration.

The main causes of engine idle shake are:

1. The fuel mixing ratio is incorrect and the adjustment is incorrect.

2. The ignition angle is incorrect, and there is no spark wire or poor contact with the fuse.

3. There are carbon deposits and impurities inside the engine.

4. The piston foot, piston ring, piston rod and piston head inside the engine are damaged.

5. The engine radiator is blocked, reducing the cooling water flow or insufficient flow.

6. Poor ventilation of the engine exhaust pipe reduces the gas flow.

7. The relationship between the engine output shaft gear and pulley is loose or the engine is abnormal.

The causes of 642 engine idle shake are as follows:

1。The vehicle air filter is too dirty and needs to be replaced promptly. 2.

The vehicle's high-voltage wiring is open or damaged. 3.The vehicle's spark plugs have reached the point where they need to be replaced.

4.The engine water temperature is not working properly because of a lack of refrigerant or a faulty thermostat.

Summary. Hello, in response to your question, the 4G15 engine ignition fire idle has been shaking, the possible reasons are, a section of the valve is too dirty, the air intake volume is unstable, the solution, clean the throttle, the second engine lacks fire, spark plugs, ignition coils, fuel injectors work is not bright, need to diagnose the computer to read the data flow to determine, the three air intake system is leaking, need to deal with the air leakage part, four air flow meter damage. Anyway, the air intake data is not accurate.

This can replace the air flow meter, five fuel pressure is insufficient, check whether the oil pump pressure is normal. Hope mine can help you.

What is the problem of the 4G15 engine igniting the fire and shaking all the time at idle.

Hello, in response to your question, the 4G15 engine ignition fire idle has been shaking, the possible reasons are, a section of the valve is too dirty, the air intake volume is unstable, the solution, clean the throttle, the second engine lacks fire, spark plugs, ignition coils, fuel injectors work is not bright, need to diagnose the computer to read the data flow to determine, the three air intake system is leaking, need to deal with the air leakage part, four air flow meter damage. Anyway, the air intake data is not accurate. This can replace the air flow meter, five fuel pressure is insufficient, check whether the oil pump pressure is normal.

Hope mine can help you.

Hello, the engine of the Great Wall M4, 4G15 ignited the fire and shivered. I changed the valves, the head gasket, the spark plugs, the coils.

Whether there is a fault**.

No, I've also washed the throttle and the fuel injector.

Read the data stream.

Summary. Dear, hello, the reasons for engine shaking are as follows.

The car throttle can not be added, there is a feeling of shaking, it is recommended to do the following checks:

First, this is more common is the vehicle spark plug aging or ignition coil damage caused by this situation, this can go to the repair shop to disassemble the spark plug, check the amount of spark plug clearance, if the gap is too large, or the wear is more serious, generally replace the spark plug can solve the problem. The inspection of the ignition coil needs to use the computer to read the specific fault code, if the corresponding cylinder has a misfire, it is generally a problem with the ignition coil.

Second, the engine has too much carbon deposit, which causes jitter.

In this case, it is recommended to clean the carbon deposits in the engine, especially the carbon deposits in the intake tract and cylinder of the throttle. The carbon deposits in the cylinder are mainly the carbon deposits at the piston position and the valve base position, and then rematch the throttle!

Third, the fault caused by the failure of the oil circuit, this needs to detect whether the fuel supply pressure of the gasoline pump is normal, if the oil supply pressure is unstable, it is necessary to replace the new gasoline pump in time.

474 engine idle shake.

Hello, happy to answer your questions.

Hello, dear, the exclusive technician of the car master will serve you, attentively, carefully, Qing Zhiwei will concentrate on answering your car questions, and will definitely provide you with satisfactory service! Hope mine can help you! Dear, hello, the reasons for the engine shaking are the following points, the car throttle can not be added, there is a feeling of shaking, it is recommended to do the following aspects of the inspection:

First, this is more common is the car shouting spark plug aging or ignition coil damage caused by this situation, this can go to the repair shop to disassemble the spark plug, check the amount of spark plug clearance, if the amount of clearance is too large, or the wear is more serious, generally replace the spark plug can solve the problem. The inspection of the ignition coil needs to use the computer to read the specific fault code, if the corresponding cylinder has a misfire, it is generally a problem with the ignition coil. Second, there is too much carbon deposition in the engine, and it is recommended to clean the engine carbon deposition caused by the shaking, especially the carbon deposition in the throttle intake tract and cylinder.

The carbon deposits in the cylinder are mainly the carbon deposits at the piston position and the valve base position, and then rematch the throttle! Third, the fault caused by the oil circuit failure is good, this needs to detect whether the fuel supply pressure of the gasoline pump is normal, if the oil supply pressure is unstable, it is necessary to replace the new gasoline pump in time.

Summary. The intake manifold pressure is normal, what is the cylinder pressure of the engine, the cylinder pressure and the gasoline pressure.

Hello, I am helping you sort out the answer to the question, please wait a while Oh Check if there is a lack of cylinder, if there is a cylinder that does not work well, measure the cylinder pressure. If the cylinder pressure is the same, it is an air intake leak.

I used my computer to look at all the fires reported by the fault.

Generally, it is caused by air intake problems, and reading the air intake pressure data, it is normal to be about 34kpa.

And the fault light also jumps.

And the fault light also jumps.

If the ignition is not normal, the fault light will flash, if the air intake does not leak, check whether the spark plug and ignition coil are sharp and thick, and whether the engine computer is normal with the silver town iron.

The intake manifold pressure is normal, what is the cylinder pressure of the engine, the cylinder pressure and the gasoline pressure.

1.When a vehicle shakes out, the throttle and fuel injector should be checked first. If you find that the throttle valve is too dirty or the fuel injector has too much carbon deposit, it should be cleaned in time.

2, the engine pad aging, car shaking is sometimes related to the aging of the engine foot, the engine foot is actually the shock absorption system of the engine Peiling motive, the engine foot is responsible for absorbing the subtle shaking of the engine when running, if there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel, the cab, resulting in the idle engine in the idle state, when the car electrical system is turned on, it is most likely to cause the vehicle to shake. The engine will increase the load due to the opening of the electrical system, causing the idle speed to slip, in order to compensate for the jitter caused by the idle slide, the engine will automatically pull up the speed a little. Therefore, when the car's electrical system is turned on, especially when the car air conditioner is started in the summer, the engine often shakes.

If the jitter in the idle state does not decrease due to the operation of the on-board null key brightness compression and brightness machine, this jitter is likely to be caused by the aging of the engine foot, and a new engine foot needs to be replaced in time. Uneven tire weighting is also a cause of judder.

3. The aging and deformation of tires and the shaking of the chartered car during the journey are far more worrying to the driver than the shaking during idling. Most of the shake of the vehicle while moving is related to the drivetrain, and one of the most basic links is a problem with the tires. I hope the above will help you, hopefully!

1. Fault judgment:

It is usually manifested as: the engine is found to work abnormally or the power is insufficient, the engine works unevenly at high, medium and low speeds, and the rhythmic vibrating muffler discharges black smoke and discharges guns. The lack of cylinder in the engine can lead to large fuel consumption, black smoke, weakness, horsepower decline, the vehicle cannot increase speed, serious shaking, and increased driving noise.

And it is very bad for driving safety. Especially on the road section that needs to be sloped, the engine load of the vehicle with a lack of cylinder increases, the body shake is more obvious, and it is very easy to have an instantaneous dead fire.

Second, the lack of cylinder operation of the engine will bring great harm

1.The speed and power of the engine decreased.

2.Increased fuel consumption and emissions of pollution.

3.Aggravate the wear of running parts and shorten the service life of lubricating oil.

Third, the maintenance method: first check the circuit fault, and then check the valve tightness (cylinder compression ratio), if there is no problem with the above inspection, it is more troublesome, belongs to mechanical aging or damage, need to be overhauled.

When the balance shaft belt in the timing belt breaks, the engine shakes.