Help, the car is unstable, emitting white smoke, and is not energetic 10

<>a. It may be that the spark plug is immersed in water outside (the spark plug seal is aging and cracked or the seal is not tightly sealed, or the reason for installation, etc.); Or contact with fuel mixed with water (tank inlet water) combustion ignition efficiency is hindered.

b. Due to the water ingress, there may be a short circuit in the line or poor contact, resulting in the electrical parts not working or working poorly, which will affect the normal working condition of the engine. The combustion itself is incomplete, plus the electrical part, oil system and other reasons. If the problem is bigger, you can't get the car, burn the line, burn the ECU, etc.

c. Do not start the vehicle for the time being, it is recommended to park for one or two more days, clean the line again, and blow the water clean with the corresponding tools. Check whether the input and output IOs of each electrical part are normal. Whether the voltage and current of the main ECU are stable, use a detector to detect or test each key component after cleaning the line.

d. Clean the oil circuit thoroughly, if it is an iron oil tank, it may rust, and replace it again if it rusts after removing. If the plastic does not have much impact, pour out the original oil and add new oil. (After you refuel it once and twice, you only increase the specific gravity of gasoline, dilute the water content, and the work of the spark plug ignition cylinder gradually returns to the normal value).

e. After doing a good job of items C and D, the car can be ignited, and then according to the engine working conditions, the electrical wiring part can be re-tested. Replacement of electrical equipment that has been affected by water ingress and has been in poor working condition includes the replacement of components such as spark plugs.

Manual transmission or automatic transmission, these problems are not good to draw specific conclusions without seeing the car, but I can't figure it out if you are asked to change the spark plug, even if it is flooded, as long as it is not worn, remove it and clean it. And his thinking of dealing with it is very problematic, you can think about whether there is water in gasoline, why doesn't he check the oil circuit and let you go to refuel. According to what you provided, it is recommended that you check the oil circuit, then check the throttle, and check the idle motor if there is an idle motor

The oil burns, the oil goes into the combustion chamber. Check the exhaust gas recirculation valve for damage, and then replace the valve seal.

Hello, dear, the vehicle can not run up the fault performance of the speed and speed, it is recommended to check the following reasons for the failure: first, the shaking or acceleration caused by the carbon deposition of the vehicle engine, in this case, it is recommended to clean the throttle and intake tract carbon deposition, and then check the carbon deposition in the cylinder, whether the carbon deposition of the valve base is serious. Second, the ignition system failure of the engine is generally caused by the ignition coil or the aging of the spark plug, and the damaged ignition coil can be replaced or the spark plug can be replaced.

Third, if the engine fuel system fails, the oil circuit is too dirty, or the fuel quality is too poor, it is recommended to clean the oil circuit, and then add some high-grade gasoline, or fuel treasure. In the last case, it is considered that it is caused by the problem of the vehicle gearbox, the wear of the friction plate inside the gearbox, or the solenoid valve body has been damaged, and the upshift is not timely or the acceleration is weak. The gearbox needs to be checked.

The reason for the unstable idle speed of the car is the carbon deposition of the engine valve, which causes the valve to be sealed tightly. Injectors are dripping, resulting in high fuel concentrations. The fuel pressure is too high, resulting in a higher amount of fuel injection. The spark plug worked poorly and the ignition was too late.

The phenomenon of black smoke exhaust is more common in carburetor cars, which is due to the fact that the amount of fuel injected by this carburetor model is not controlled by the computer, but by the foot throttle, and in some cases, too much fuel enters the cylinder, and it is discharged out of the car before it has time to burn, which causes black smoke.

Excessive dirt build-up in the throttle and intake tract can cause the car to idle erratically. The carbon deposition and dirt of the throttle and the surrounding air intake tract are excessive, and the cross-sectional area of the air channel changes, so that the control unit can not accurately control the idle air intake, and the vertical group causes the mixture to be too thick or too thin, so that the gear disadvantage burns abnormally. The common causes are oil or carbon deposits on the throttle, oil and carbon deposits in the intake tract around the throttle, and oil and carbon deposits on the idle stepper motor, duty cycle solenoid valve, and rotary solenoid valve.

Photo by Chen Min 2).

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

2. If there is a problem with the ignition system, check the working condition of the spark plug, high-voltage wire and ignition coil, the ignition system is not working well, the spark plug is not in good condition and the exhaust pipe is also shaking and the exhaust pipe is black smoke fault. 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 the 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 solutions to unstable idling, shaking, shaking, and black smoke are as follows:1The engine has serious carbon deposits, and the common cause of car shake is that the throttle is too dirty or the fuel nozzle has too much carbon deposit.

Solution: Clean the oil circuit, check whether there is carbon deposit in the idle motor, and clean it. 2.

Ignition system issues, check the operation of spark plugs, high-voltage wires and ignition coils. The ignition system is not easy to use, and the spark plug is not easy to use, so it is also dangling, and the exhaust pipe is emitting black smoke. Workaround:

Check the spark plug for excessive carbon build-up 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 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 the engine foot is accompanied by a questioner, these vibrations can be transmitted to the steering wheel and cab, causing swaying and vibration when picking up speed.

Workaround: Replace the part.

Idling shaking, rapid acceleration and black smoke are basically serious carbon deposits in the cylinder.

In fact, the hand shake is about to be performed on the weekend, and it is all due to the spark plug or cylinder block of the engine.

Hello, the current number of people consulted may not reply in a timely manner, if it is a vehicle failure problem, it is recommended to use the computer to detect the specific cause of the failure, search for "car master" can consult car problems at any time, 24 hours ** answer.