What happens to the engine if the car s intake manifold connection channel is blocked?

The engine intake system is blocked, the engine cannot be started, and the exhaust pipe has the smell of raw oil in the exhaust when the engine is rotated with the starter.

It's simple. The engine is the two most important elements in the car:1. Low-speed torque. 2。High-speed power. Now let's not talk about it, just talk about the air intake system.

Feel powerful and cool when overtaking and accelerating quickly in emerging cars, it is necessary for torque. Whether the top speed is fast or not is related to the high-speed power. > now the problem comes back to the other configuration of the vehicle without changing the situation, if the thin and long intake manifold, in the case of low engine speed, can increase the suction air flow and pressure intensity, so that the gasoline can get better atomization, and better combustion.

On the contrary, such a configuration also has disadvantages, when the engine pulls at high speed, the manifold is too thin, and the air intake per unit time is not enough, and the result is that the speed cannot be pulled up, resulting in a high-speed car that is not used up. Then, you need the manifold to be thick and short, thus drawing in more air.

In order to allow the engine to torque at low speeds, but also to pull high-speed cars, now mostly equipped with variable manifolds or manifolds.

The connection between the twin carburetor manifold (EFI) and the cylinder head to the intake manifold is stubby straight (mostly elongated bends to elongated bends) with variable valve control (e.g. human pharyngeal airway and esophagus). Usually the gas goes to the thin pipe, the valve closes automatically, and when the speed reaches a certain height, the gas goes to the thick pipe.

The variable manifold looks like a thick tube in a thin tube. The structure is different, the same principle.

The engine is weak and the oil burns inadequately!! It can damage the fuel injector, piston ring.

Unable to start, difficult to start, lack of power. Spray it with carburetor cleaner, or remove it for cleaning.

This question is interesting, it is blocked, there is no air entering the engine combustion chamber, there is only fuel, and the engine cannot be started.

First, the first one is connected to the follow-up gas branch pipe, which has a PVC valve (also called the crankcase forced ventilation valve) is a one-way valve, which is connected to the vacuum negative pressure generated by the air intake branch pipe at the other end and pumped the exhaust gas generated by the crankcase into the air intake branch pipe and burned out. The second one is used for air intake, and the other end is connected to the bellows where the air grid and the throttle are connected, and it is directly connected to the atmosphere. Used to equalize the pressure of these two lines.

2. Both air pipes are connected to the outlet joints behind the oil baffle of the valve chamber.

A fitting passes through the trachea directly to the intake hose. The pressure effect of the crankcase is reduced, and the exhaust gases of the exhaust oil and fuel mixture are sucked into the cylinder and burned with the aerosolized gasoline. The faster the speed, the more exhaust gases are discharged from the crankcase.

The more exhaust gases enter the throttle valve as well. The pressure has increased.

The other pipe is attached to the valve chamber cover (one-way vent valve, and the other end is connected to the intake manifold. Only when the vacuum pressure in the manifold is high, the mixture of the crankcase enters the manifold through the valve smoothly and is utilized, and the vacuum pressure in the manifold is low, so it is less sucked in, but it cannot be sucked back.

Hello, these two pipes are for the crankcase forced ventilation, the air filter is the crankcase, and the air intake manifold is the crankcase outlet, the main function is to put the exhaust gas in the crankcase into the combustion chamber for combustion, which has been exempted from atmospheric pollution.

Utilization of exhaust gas in the head**: 1. The exhaust gas contains oil and can lubricate the gas joint door. 2. Enter the combustion chamber of the engine combustion and lubricate the inside of the combustion chamber.

1. Because the engine must inhale air when doing work, after the air passes through the throttle body, different pressures will be formed in the intake manifold according to the different intake volumes, the larger the throttle opening (when the accelerator pedal is pressed deeply), the more air intake, the smaller the negative pressure, and the smaller the throttle opening (when the accelerator pedal is shallower, or not stepped on, the negative pressure will become larger).

2. Therefore, many cars detect the air intake through this principle, and calculate the amount of air intake through the change of pressure, which is the vehicle using the D-type control system, using the air intake pressure sensor to calculate the air flow, and the other L-type is using the air flow meter, and the computer knows the air intake through the value transmitted by the pressure sensor, so as to adjust the amount of fuel injection according to the needs of the working conditions, so as to achieve the ideal working conditions.

3. When the intake manifold leaks, the pressure inside the intake manifold will change, because it is not in accordance with the normal channel intake, then the pressure detection becomes abnormal, often the mixture is too thin, the air intake increases too much, because the amount of fuel injection is mainly determined according to the amount of air intake.

4. So there is more gas, then the amount of fuel injection will follow, and the idle speed will become higher, or due to the irregular air intake in the place of air leakage, there may be a phenomenon of high and low, and the other is that the computer receives the idle only Qi speed state through the throttle sensor, but the speed of the idle speed is not within the specified range, then the computer automatically adjusts the idle motor operation, at this time, there will also be a phenomenon of high and low, the air leakage is not serious, only the idle speed is slightly higher, and there will be no swimming phenomenon.

Summary. Glad for your question. Generally, this situation is caused by the air filter being too dirty. Wash the filter cartridge and you're good to go.

I consulted the staff of the 4S store and asked me to clean up the second filter, which was normal for a day after cleaning, and then this situation occurred.

In this case, it should be a problem with the clutch plate, check if the clutch plate is burned out.

When the air cleaner was being cleaned, there were a few leaves on the air intake.

It's okay to clean it up, dear.

I'm in the county seat, 4S store to the city, can I go by car? The fastest way to run on the road is 40 yards.

I'm afraid that the engine will be damaged at that time.

The master who repaired the car said it was a problem with the gearbox.

The problem with the gearbox will cause the car to shake and stir, but you can't raise the speed, this needs to be checked to know the specific reason. Both the gearbox and the Mingsun Lu clutch are possible.

The manifestations of broken intake manifold are: 1. Weakened intake capacity; 2. The engine power is reduced; 3. Insufficient air intake; 4. Increase the carbon deposition of the engine. The intake manifold is between the throttle valve and the engine intake valve, and the intake manifold refers to the intake line after the carburetor or throttle body to the intake tract of the cylinder head, and its function is to distribute the air and fuel mixture from the carburetor or throttle body to the intake tract of each cylinder.

The requirements for the plastic material of the engine intake manifold are: 1. Resistant to high temperature; 2. High strength; 3. Dimensional stability; 4. Chemical stability; 5. Thermal aging stability.

The intake manifold simply distributes clean air to the intake tracts of each cylinder. The intake manifold must distribute air, fuel mixture, or clean air to the cylinders as evenly as possible, so that the length of the gas flow channels in the intake manifold should be as equal as possible. In order to reduce the resistance of gas flow and improve the intake capacity, the inner wall of the intake manifold should be smooth.

If the intake manifold is damaged, it will cause air leakage, reduced gas pressure, and weakened air intake capacity. Reduced engine power. Insufficient air intake will also cause an increase in carbon deposition in the overall situation.

The performance of the engine intake manifold is broken: 1. The air intake manifold will leak there will be a sound, the car will have a lack of sail shaking, unstable idling, weak acceleration and easy stalling, etc., and serious cracking will cause the car to not start; 2. Under normal circumstances, the air intake of the engine is fixed, when the intake manifold leaks, it will cause the engine to enter or the gas volume is insufficient, and the engine fuel and air can not form a perfect combination, resulting in insufficient engine power, so there will be weak acceleration during driving; 3. In addition, the leakage of the intake manifold will also lead to abnormal internal working conditions of the engine, which will be known for the situation of engine stalling, and the noise of the exhaust pipe of the engine will also become louder.

How to deal with foreign objects in the air intake of the car:

1. The first brother Mobi will remove the fuel injector, intake manifold and some accessories around the engine that hinder the construction, especially the throttle, the throttle is installed at the intake manifold, and cleaning the throttle is also one of them, so the throttle should be removed and properly placed before disassembling the intake manifold;

2. Secondly, the ignition coil and spark plug should be removed, mainly so that the cleaning agent can be directly injected into the combustion chamber of each cylinder;

3. Next, the cleaning agent will be driven from the inlet and from the spark plug installation, and the previous form of the cleaning agent is different, this cleaning agent is foamy, the advantage of this form is that the carbon deposits attached to the cylinder and the air inlet can be fully soaked, the cleaning agent has a relatively strong solubility for carbon deposits, after soaking for a period of time, although the carbon deposits will not fall off by themselves, but the use of small brushes can easily remove the hard carbon deposits at low temperatures, and finally cooperate with the use of chemical detergents, from the appearance, The originally pitch-black air intake reveals its undertone;

4. Finally, the cleaning liquid accumulated in each cylinder is pumped out with a vacuum tank, and the engine is restored to its original state in the reverse process of disassembly, and then You Sen plays the engine, at this time the exhaust pipe will spray a choking white exhaust, and after the exhaust color returns to normal, the cleaning construction operation is completed, and this cleaning method takes about two hours.

The role of the gas ambivalence of the car engine is that the gas is gasoline through the carburetor and the throttle valve is transported to each cylinder, and then to the engine, and the gas is used to the cylinder pipe, and the stuck method is to remove the vacuum pump, there is a control film box that controls the action of the flap in the intake pipe, generally speaking, if this fault occurs, your control flap will not act, so you first need to check your flap, whether there is a jam in the destruction of the beat, The second is to see if the vacuum tube in your membrane box has been damaged and falling off.