Why does my car turn off on its own?

Most of today's car engines are electronically controlled fuel injection gasoline engines, and there are many reasons for idle shutdown, so first of all, we must analyze the symptoms of idle shutdown. If the engine will stall as soon as it enters idle operation, we call it "no idling", and the causes of this failure generally are: damage to the engine idle motor or the idle motor's wiring; Leakage of the vacuum tube of the brake vacuum booster; Broken membrane of the brake vacuum booster; air leakage in the intake manifold; There is a problem with the idle control module in the engine electronic control unit (ECU).

If the engine sometimes turns off when idling, and it is normal after restarting, we call it "interstitial idle stalling", this fault is very difficult to investigate, and there are many reasons for it, and various parts or circuits are not completely damaged, and the more headache is that the engine can be restarted after occasionally turning off and returning to normal, so even if the engine is idle and stalled due to the sensor, the engine electronic control unit will think that this phenomenon is not a fault, It is not recorded by the engine ECU and therefore cannot be obtained from the fault diagnosis system of the engine ECU. The reasons for "intermittent idle stalling" generally include: the engine idle motor is stuck; The wire sheath of the idle motor is somewhat worn out; The idle air hole is too dirty; There is a problem with the engine throttle position sensor; There is a problem with the camshaft position sensor or the crankshaft position sensor; The engine speed sensor is faulty or too dirty; There is a problem with the idle speed control program in the engine's electronic control unit, etc., and if there is a problem with the quality of the gasoline, it can also cause this kind of failure.

You're talking about the automatic start-stop function, which goes off as soon as it stops, and it hits when you lift the brake.

What are you doing when the engine is off? Or does it turn off on its own during normal driving?

The most common cause of stalling in the vehicle is the ignition system.

If the fuel injection system fails, the vehicle will stall.

Ignition system: If the ignition system fails, the spark plug will not ignite, so the mixture will not be ignited, so the vehicle will stall. At this time, it is necessary to check whether the ignition circuit in the ignition system is normal, whether the ignition module is working normally, and whether the spark plug is damaged, such as the pole is broken, and the ceramic part of the spark plug is cracked.

Fuel injection system: The fuel injection system is also what we often call the fuel supply system, which is generally transmitted to the fuel injector through the fuel pipeline through the fuel pump in the fuel tank of the vehicle, so that the fuel injection nozzle can inject fuel. If the fuel pump in this system is damaged, the lines are broken, the fuel injector is damaged, the fuel cannot be supplied for the engine to work, so the vehicle stops.

The car always stalls for reasons:

1. Circuit failure. This possibility is that the power is cut off due to low voltage during driving. At this time, you can mainly check the ignition and starter switches, as well as the fuse box.

The low-voltage line is short-circuited and causes the flame-out, in this case it is intermittent flame-off, check the low-voltage circuit of the car.

2. Device failure. This problem is generally the ignition coil, capacitive electric, electronic ignition module. It starts at the beginning, turns off after a while, and then starts again and turns off again.

3. Oil circuit failure. The gasoline pump was damaged, the oil line was ruptured, the carburetor inlet was clogged, and the fuel tank ran out of oil. But in this case the car can be restarted, but it is difficult.

4. Ignition system. If the engine overheats and the detonation system fails, it will stall.

This situation should be said bai

Yes, the car that DU has started is the DAO that stalled after the ZHI gear was put in gear, and there are several possibilities for this.

1.The idle speed is low, or there is no high idle speed. The rotational speed value of idle speed is about 950 rpm, and the low idle speed is mainly caused by dirty idle control valves, dirty fuel injectors, and carbon deposits in spark plugs.

In addition, there is a problem with the intake air temperature sensor, water temperature sensor, and high idle program in the computer, but this is not very common. The problems of the idle valve, fuel injector, and spark plug mentioned above are mainly the result of long-term low-speed driving.

2.It is possible that the clutch is too low when the ignition is turned off after the gear. The clutch is too low, the cut is not complete, and the car is about to move as soon as the gear is in gear, but at this time, because the idle speed is not high and the oil is not given, the engine is suffocated. This adjusts the clutch cable a bit.

The fuel injector is clogged, the throttle is too dirty, and the gasoline pump is underfueled.

When will the fire go out? Is it when you are speeding, or when you are driving?

The problem of cold car start-up and shutdown involves many aspects, and here are a few daily cars that can be touched

To the reason: inside.

1. The problem of oil products, this is the car maintenance experience that everyone is using.

2. There is too much carbon accumulation on the throttle, which is also the main reason for the problems such as unstable idling and stalling of the car. Go to a professional repair shop or 4S shop to clean the throttle.

3. The pressure of the gasoline pump is low or the fault is easy to cause the flameout due to the lack of oil.

4. Due to the long-term parking of the vehicle, the oil is viscous and the car stalls, this phenomenon is not much of a problem, and the car can be heated after the fire.

The reason for the sudden flameout.

1. Engine stalling is one of the common reasons:

a. Engine stalling is one of the common reasons for land wind stalling, which is manifested as the unstable operation of the engine when idling, and the exhaust pipe makes a purring and purring sound.

Solution: The main cause of the fault of the car stalling in the idle state is due to too much dust in the air, which can be solved by cleaning the idle motor.

b. The engine is shaking, followed by stalling, and the second start will be normal!

Solution: Replace the gasoline filter, clean the throttle, and check the spark plug combustion. Or you can turn the ignition switch to the power-on self-test state first, stay for dozens of seconds, let the oil, oil pump or something run for a while, and then ignite.

2. Troubleshooting method for automatic transmission car shutdown:

Pay attention to the place: for the phenomenon of automatic transmission car stalling, it is mainly caused by the use of inferior fuel ridge.

Practical operation: Hold the steering wheel with your left hand to stabilize the direction because there is no power assist, so you must stabilize it hard, press the brake with your right foot to reduce the speed as much as possible, and then quickly hit the AT gear to N gear, then take the key back one notch, and then re-ignite, and then restore the AT gear to D gear for normal driving.

3. Troubleshooting method for manual transmission car ignition:

Solution: Clean the oil circuit thoroughly, including fuel injectors, throttle valves, fuel tanks, etc. It may be that the quality of the oil you add is not up to standard, there is too much grease, the oil path is blocked, and the oil attack is not smooth.

4. Long-term parking is not used

Land breeze flameout is closely related to long-term parking and non-use, because long-term parking can lead to lubrication or electrical problems.

Solution: A thorough maintenance should be done before re-using Qingpei, replacing the oil, filter, etc., and checking the fuel and circuit as appropriate.

The car suddenly stalled in this sleepy driving, and the general base fiber has the following 5 originals.

Causes: 1. Circuit failure. 2. Low-voltage line short circuit.

into flameout, in this case it is intermittent flameout.

Check your low-voltage line 3, device failure.

4. Oil circuit failure. 5. Ignition system, engine over.

If there is a problem with the thermal detonation system, it will turn off.

It is understandable to start and turn off, this is not the difference between novices and veterans, it has a starting assistance function, this may be the reason why you turn off, read the previous comments, I also laughed, clutch slow to do fast loosening is a novice, and what do you say clutch fast release is not going to open manual, I tell you that people who clutch fast loose, basically open hands to disturb the balance of the game to move more, used to a foot and a half clutch, the kind of slowly loosen the clutch or new.

This problem is too big, and there are many reasons for stalling, and the possible reasons are as follows:

1. The oil is out and I forgot to add it.

2. I forgot to loosen the hand brake when I started.

3. The clutch and throttle do not cooperate well when starting.

4. Brake to the end, fail to step on the clutch in time, and suffocate.

The power is off, the gas is out, the ventilation is out, and the play is over.

There are many possible stalls, and I don't know how your car causes it to stall? When the water is dry, there is no oil, or if the oil is dry, it will turn off halfway.

Oil, gas, electricity, any one of them will go out.

Because you turned off the electric door.

Sparks stuff into the water, don't dry it.