What is the reason why diesel cars often stall when they add gasoline by mistake?

Hello, the diesel car is a compression-ignition engine, which relies on compressing the gas in the cylinder to increase the gas temperature to a few, and the mixture of diesel and air in the cylinder can be burned by itself. After the mixture of gasoline and air enters the cylinder, it must be ignited by a spark plug before it can start combustion. Diesel vehicles do not have spark plugs and do not have the ability to ignite gasoline, so the engine will stall after the diesel car is mistakenly added with gasoline.

The working principle of diesel vehicles and gasoline vehicles is very different, simply put, diesel engines work by compression ignition, while gasoline vehicles rely on spark plugs.

Ignite. If a diesel car is added with gasoline, it can start driving, but the vehicle will quickly become weak, shake, stall, and white smoke from the exhaust pipe.

If this is the case, it is not as simple as cleaning the oil circuit and draining the wrong gasoline, but also replacing the diesel filter and fuel water separator.

If the driving distance is long, it is also possible to replace parts such as diesel pumps and nozzles.

Either you can't hit it directly, or you shut it down after a while. Gasoline cars plus diesel are not as serious as diesel cars plus gasoline. If the wrong oil is detected in time, at least clean the tank.

After turning on the switch, the oil circuit of the oil pump must be disassembled and cleaned. If you drive away, see how much damage it has done to the engine. ps:

Do you remember Ma Junbo's first retirement from the Dakar? The reason is that diesel cars are not refueled. After running for a while, it was found that the turbine had melted down, and there was no spare vehicle, so he had no choice but to withdraw from the race.

The main solutions for adding gasoline to diesel vehicles are: 1. Contact the repair shop as soon as possible to clean up the fuel tank and oil circuit system, and then conduct a comprehensive inspection of the engine, and do not ignite to avoid hurting the car. 2. Find the nearest repair shop to replace the gasoline immediately, and it is best to clean the fuel tank and oil circuit system, and replace the fuel filter.

Diesel has a low burst point, adding gasoline will cause engine damage, it is recommended to replace the spark plug or clean the engine.

It is possible that it has affected the engine, so it is best to go to the store again to check it out.

What is the reason why diesel cars often stall when they add gasoline by mistake? The machine is not cleaned?

1. The throttle is dirty and dirty.

This situation causes the car to accelerate, the throttle flaps open to decrease or jam, and stall. At this time, the throttle valve should be cleaned or replaced and matched with the throttle valve.

2. The ignition coil is damaged, the coil is disconnected or short-circuited.

When it is difficult to make an accurate judgment through visual inspection and resistance measurement, the method of comparison test of the new ignition coil should be used for inspection.

3. The engine oil filter element is too dirty.

When the vehicle accelerates, the oil circuit will be blocked. In this case, the problem of replacing the gasoline filter and the acceleration will stall can be solved.

4. The air flow meter is damaged.

Replace the air flow meter.

5. The oil pump is broken.

When the car is running, the oil pump does not maintain oil pressure or the fuel injection is insufficient, resulting in stalling when accelerating. In this case, replace the gasoline pump and, if necessary, clean the tank. Check the throttle and fuel nozzle.

The section from the hand oil pump to the fuel tank is a little leaking, and the diesel fuel in the pipeline has fallen back into the fuel tank after a long time of parking.

After a period of time after the fire was ignited, the oil in the filter was exhausted, and there was air, so the fire was turned off.

Carburetor fuel supply problems, such as gasoline filter blockage, float chamber switch damage, etc., caused by poor oil supply, when the gas pedal is refueled, the gasoline liquid level in the carburetor float chamber is reduced, but the follow-up fuel supply can not keep up, resulting in flameout. This type of failure usually results in a brief increase in speed during the throttle and then stalling.

1. Pay attention to oil products: The best way for users is to choose gas stations carefully and ask for bills after refueling. If the gas station staff mistakenly adds gasoline, the owner should not start the car, and should immediately contact the repair station or 4S shop for technical support.

2. Strengthen the maintenance of the filter: the diesel engine is very durable, the speed of the diesel engine is relatively low, the wear and tear of the engine parts is relatively reduced, and the diesel vehicle does not have a high-pressure ignition system and throttle valve body, so the failure rate of the engine is low, and the service life is about 850,000 kilometers.

It may be that the oil appeared in the ice cubes. It's clogged. It is also possible that the section from your hand oil pump to the fuel tank is a little leaky, and the diesel fuel in the pipeline has fallen back into the fuel tank after a long time of parking.

You ran out of oil and air in the filter after a while after you caught fire, so you turned off the fire. The other scenario is that your idle speed is too low and now the temperature is low. The oil has not been changed for a long time, and the engine running resistance is higher than before.

The engine with low idle speed cannot afford to carry. You can turn it up a little higher, or change the oil to suit you. But if you have already stepped on the gas pedal when the ignition is turned off.

Generally, this situation is caused by the non-ignition of certain cylinders of the diesel engine, which is generally caused by excessive wear of the plunger of the oil pump and insufficient oil supply or no oil supply, as well as poor atomization of the oil head, resulting in difficulty in ignition. It may be caused by blocked idle air measuring holes, poor working of idle devices, weak sparks from individual cylinder spark plugs, poor sealing of individual valves, and air leakage from intake manifolds.

When the engine idle speed is unstable, the first thing to do is to adjust the idle speed, if the fault can not be eliminated after the idle speed adjustment, then check whether the idle speed measuring hole and the idle air measuring hole are blocked; If the gauge hole is blocked, it can be cleaned with gasoline or acetone and blown through with compressed air, if the gauge hole is not blocked, then it is necessary to stabilize the engine speed at a certain speed and observe whether there is air leakage in the middle and lower gaskets of the following intake manifold or carburetor.

Things to pay attention to before starting the engine:

1. Do not have coolant in the water tank or add coolant after starting the engine, which will cause the hot cylinder liner, cylinder head and other important components to burst or deform due to sudden cold. Similarly, if boiling water at 100°C is suddenly added to an ice-cold body, the cylinder head and body will be cracked.

2. Do not supply oil according to the regulations, we should not start the engine or after starting, put the pressure reducing handle to the "working" position before supplying oil, should put the throttle handle on the position of oil supply before starting the engine.

The harm of not operating in accordance with this regulation is: at the time of starting, if the throttle is increased first, it will cause a waste of fuel, and the excess diesel oil will wash the cylinder wall, so that the lubrication between the piston, the piston ring and the cylinder liner deteriorates and aggravates the wear, and the residual oil flows into the oil pan will dilute the oil and reduce the lubrication effect, resulting in the incomplete combustion of too much diesel in the cylinder will form carbon deposits.

Open the engine cover and see inside, there is a rather thick strip near the engine"Same as trachea"There is a problem with whether there is a connection.

Landlord, this may be a spark plug thing, you can check it.

It could be that there is air in the oil pipe, a clogged diesel filter or water, a damaged fuel transfer pump, a damaged fuel injector, a faulty high-pressure oil pump, or a lack of air in the fuel tank.

Hello, if the car is filled with the wrong oil, the vehicle is not far away or even not started, this situation is not too serious, in order to avoid seriously affecting the oil should be immediately called a trailer, car 4 s shop or repair shop, add the wrong oil and pump it back to the oil that should have been added at the beginning.

If you notice that the car has been running for a long distance and the car is starting to have some adverse reactions, you should pull over and call for roadside assistance. In addition to pumping out the remaining oil from the fuel tank, the tank and oil circuit need to be cleaned, the engine filter element replaced, and a comprehensive test required.

Hello, I am a master with decades of experience! I've seen your problem! I will reply to you within five minutes, and after answering, if you are satisfied, can you give me a thumbs up? Thank you!

Hello, according to the amount of judgment if the diesel car is added with gasoline, according to the amount of gasoline added to judge, in the case of the proportion of gasoline added is not large, you can not do any treatment, but if the proportion is large, it must be dealt with in time, otherwise the car will be damaged to a certain extent.

Usually, the treatment is to quickly pour out all the mixed oil in the mailbox and then wash it in time. However, this treatment is divided into occasions, and if you are in a place like a gas station, you can't just pour out the oil, because pouring it out may cause a fire.

Question: Add 100 gasoline and 400 diesel.

Ask what happens when it's the most serious.

Ask if you will turn off the engine halfway.

Ask the master if you are sure that nothing will happen.

Ask [agree] [agree] [agree].

If you can, please give five stars and give a thumbs up, thank you!

Summary. Hello, this situation is caused by insufficient oil supply or pipeline blockage and air inlet caused by the problem, you can first check whether the oil pipe is leaking and damaged, if there is no problem, after opening the exhaust screw, use the manual pump oil to drain the air, in the process of pumping oil to feel whether it is difficult to absorb oil, if there is this problem, replace the filter element and clean the oil-water separator. If the air is drained and then re-started or does not catch fire, the metering unit of the high-pressure oil pump is removed and replaced or cleaned, and then the air of the high-pressure pipeline is discharged.

When the diesel car is driving, it suddenly can't be refueled and stalls.

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

Hello, this situation is caused by insufficient oil supply or pipeline blockage and air inlet caused by the problem, you can first check whether the oil pipe is leaking and damaged, if there is no problem, after opening the exhaust screw, use the manual pump oil to drain the air, in the process of pumping oil to feel whether it is difficult to absorb oil, if there is this problem, replace the filter element and clean the oil-water separator. If the air is drained and then re-started or does not catch fire, the metering unit of the high-pressure oil pump is removed and replaced or cleaned, and then the air of the high-pressure pipeline is discharged.

1. Causes of oil supply system: low-pressure oil circuit blockage, loose pipeline oil leakage, high-pressure oil pipe with air, poor technical condition of fuel injector, incorrect fuel injection timing angle.

2. Causes of starting device: power failure, poor contact of electromagnetic switch, poor contact between the commutator of the starting motor and brushes, and slippage of the clutch of the transmission mechanism of the starter.

3. Insufficient cylinder compression pressure: the cylinder gasket is damaged and leaks, the valve is not closed tightly, and the piston cylinder liner is worn and leaking.

The single-cylinder diesel engine checks the atomization condition of the fuel injector on the watch table, and whether the internal filter element of the air filter is clean or damaged.