Wuling Light B series engine has two cylinders missing cylinders, what s going on

Engine Cylinder ShortageRegarding the problem you inquired, the cause should be the flooded spark plug caused by the engine burning oil. You can check whether the engine burns oil by yourself in the following ways: First, if the exhaust pipe only emits blue smoke when the car starts, the biggest possibility is that the valve guide and the duct bearing hole are not tightly sealed, causing oil leakage, and then seeping into the combustion chamber; Second, if the exhaust pipe emits blue smoke during normal operation, it may be caused by excessive wear of the valve stem or the failure of the valve stem oil seal, which causes the oil in the valve chamber to be sucked into the combustion chamber, so that the oil enters the combustion chamber through the intake pipe with the combustible mixture; Third, if in addition to the blue smoke from the exhaust pipe, you can also see the pulsating blue smoke from the oil port of the processor, it can be preliminarily determined that the sealing effect of the piston connecting rod group is not good, and the piston connecting rod group such as the gap between the piston and the cylinder wall is too large, the piston ring elasticity is small, locked or counterpartial, and the piston ring wear makes the end clearance and side clearance too large, so that the piston ring produces pump oil phenomenon.

This will give you a preliminary indication of which area is worn-out or if there is a problem. Then according to the specific fault to determine the location and cost of repair, this should be the most cost-effective. If my answer is helpful to you, please set it to.

The engine lacks cylinders and replaces spark plugs, fuel injectors, ignition coils, and idle jitter, which is mainly the reason why one or two cylinders do not work. Eliminate the following faults: 1. The cylinder bed is broken and the cylinder bed is replaced.

2. If the valve is not closed tightly, adjust the valve first to check whether the clearance is normal. 3. The valve is flushed, and the valve is replaced. 4. The piston ring is counterparting, and the cylinder pressure cannot be established.

1. Circuit failure near the engine: spark plugs, cylinder wires, ignition coils, etc. are damaged, and cylinder shortage is easy to occur. You can use the broken fire to determine which cylinder parts are damaged, and replace the damaged parts.

2. Oil circuit failure: the fuel injector is blocked, and the fuel injector line is short-circuited or broken. The oil cut-off test is used to detect the fault point and carry out maintenance.

3. Mechanical failure: the internal piston, connecting rod, piston ring, piston pin, etc. of the engine are faulty, which will generally be accompanied by obvious abnormal noise. At this point, the engine needs to be overhauled.

Usually in actual use can pass, when the engine is running, one by one to unplug the ignition line to test the problem of lack of cylinder in a single cylinder block, if the engine shake intensifies when pulling out the ignition line, it is not the cylinder, if there is no change, it is the cylinder is missing.

Lack of cylinder to pay attention, some cars in the state of lack of cylinder fuel injector will still inject fuel, so that there is no combustion of gasoline mixture into the exhaust pipe, to the three-way catalytic converter will continue to burn, resulting in the three-way catalytic converter high temperature and scrap. Therefore, when doing the test of the ignition line of the lack of cylinder, the duration should not be too long, so as not to cause new failures.

The engine of the Wuling Light 465 has a cylinder that does not work for the following reasons:

1. If the core rock of the fuel injector is damaged, if the fuel injector of a cylinder is broken and the fuel is not injected, the cylinder will not work, and the fuel injector can be repaired by replacing the fuel injector.

Second, the piston ring is damaged, the piston ring is broken or worn, the cylinder has no cylinder pressure, and it will not work, replace the piston ring for repair.

3. Spark plugs.

Damage, if the spark plug is broken, this cylinder will not ignite, Chang's noise will naturally not work, replacing the spark plug can be solved, the specific operation steps are as follows:

1. Prepare the spark plug tool.

2. Remove the dust cover of the hair resistance.

3. Remove the ignition coil.

Set the screws. <>

4. Remove the ignition coil.

5. Rotate counterclockwise to remove the spark plug.

6. Replace the spark plug in reverse order and it is completed.

Engine cylinder deficiency mainly refers to the engine has one or more cylinders that are not working properly.

It is usually manifested as a side block: the engine is found to work abnormally or the power is insufficient, the engine works unevenly and rhythmically shakes at high, medium and low speeds, and the muffler exhausts black smoke and discharges the gun.

The main cause of engine cylinder shortage is the ignition system and the balanced fuel injection system. If the contacts of the distributor cover of the ignition system are severely ablated, there will be a jumper, most of which occurs between the corresponding stigma heads on the cover, and the idle speed is seriously high and low, the power drops seriously, and the vehicle feels like a severe asthma attack. The failure of the ignition coil can also lead to the lack of cylinder, and often the problem of the ignition coil will cause serious ablation of the distributor cover.

The lack of cylinder operation of the engine will bring great harm: (1) the speed and power of the engine will decrease; (2) increase fuel consumption and emission pollution; (3) Aggravate the wear of running parts and shorten the service life of lubricating oil.

The lack of cylinder in the engine can lead to large fuel consumption, black smoke, weakness, horsepower decline, vehicle inability to 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.

Dear Kiss is happy to serve you Wuling light ran to 80 as soon as the lack of cylinder for the following reasons: 1. The main fault reason is the increase in carbon deposition in the throttle, intake tract, valve and other selling parts, adsorbing some gasoline when the car is cool, and so on after the hot car, these gasoline volatilize, which will cause the mixture to be too thick when the engine is idling, which will lead to the instability of the hot car idling; 2. Therefore, you should not only check the throttle valve and idle motor, etc., but also check whether the carbon deposit and dirt in the intake tract are too much, if there are too many, it will cause changes in the cross-sectional area of the air channel; 3. The control unit cannot accurately control the idle air intake, resulting in the mixture being too thick or too thin, causing abnormal combustion and causing the engine to shake. At the same time, it is also necessary to check whether the canister is faulty.

4. Caused by carbon deposition, there are three reasons for the inability of car acceleration, the first is the valve, idle motor, air intake, combustion chamber and spark plug and other parts of the carbon deposition.

Summary. Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Well, if you fix two steels to eat steel, you first need to consider fuel injectors, spark plugs, and ignition coils. But in this case, you may want to consider that the valve is not closed tightly. Or rather, the cylinder head has two cylinders hedged.

Well, the latter two are a bit more likely. What injectors are less likely?

The computer detects the lack of cylinders in the three cylinders and four cylinders, and the hot car is normal, and the cool car is missing, what is going on.

For this question, you need to look at the closure of the valves.

The fuel injector ignition coil, the spark plug are fine.

Well, I just said this, and it's unlikely. If the cylinder head is slightly hedged, it may be the case, but it will not distinguish between hot and cold cars. Well, the main thing to consider is the clearance of the valve and the closing of the valve.

Oh ok thanks.

Summary. Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

The Wuling Light B12 engine has fire, oil and cylinder pressure, the 12-cylinder does not work, the cylinder head is removed, the cylinder gasket is fine, and the valve is not either.

Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

Hello master, in this case, you first have to determine whether the ignition is normal, and check whether the voltage of the injector plug is normal. Turn on the ignition and a power cord. After starting, the iron is controlled by the computer board.

Measure whether it's normal. If the injector does not have an iron signal. Need to check the wiring harness and engine computer version.

All 4 injectors are injected, and the spark plug ignition is no problem.

Uh-huh. Now the vehicle does not work directly or occasionally, it does not work directly.

If it doesn't work, you remove the spark plug from the tank. Connect the cylinder pressure gauge, start the car, and see how much the cylinder pressure changes.

Now the cylinder head is not installed, and the engine has not been started, so I tried the cylinder pressure of 12 3.

Is there only 3 cylinder pressures?

It's not twelve or thirteen.

Then you should check the valve closure status first. When the time comes, install 7, and measure the cylinder pressure according to the method I said.

If the cylinder pressure does not change or there is a change, it is the best thing.

If there are no 6 on. Or is there something wrong with the mechanical part.