Causes of insufficient power of automobile

The reason for the car's lack of power is 1, and the car will not run if you step on the accelerator again.

(1) oil exploration system

The

Causes of insufficient power of automobile

The reason for the car's lack of power is 1, and the car will not run if you step on the accelerator again.

(1) oil exploration system

The oil system is a place where cars are prone to problems. The insufficient amount of fuel entering the combustion chamber may be caused by the blockage of fuel nozzle, oil leakage from oil pipe, reduced power of gasoline pump or blockage of gasoline filter.

The powerlessness of the car is mainly caused by the sudden lack of oil in the engine. The gasoline filter is blocked, and the car may not be able to eat oil if it tilts.

If the fuel nozzle is blocked or the gasoline pump fails, if the fuel cannot be injected at high pressure, the fuel cannot be atomized effectively, the combustion efficiency will decrease and the horsepower will not reach the expected goal.

If the car body suddenly weakens when leaning, it is likely that there is something wrong with the gasoline filter in the fuel system. Check whether the fuel pipeline has a special pressure gauge, and whether the engine has a valve interface reserved for checking the fuel pressure. If you buy a used car, you might as well replace it at the beginning to prevent future troubles. And if it doesn't improve after replacement, you need to check other oil circuit components.

(2) Find the air intake system

The engine of a car must be able to run, except oil and air, otherwise the engine will not run smoothly. The most likely air intake problem is the blockage of the air filter or throttle system.

If there is something wrong with these small parts, it will cause insufficient air intake. If there are problems with these parts, just repair or replace them in time.

(3) Find the circuit system

The circuit system here mainly indicates the electricity consumption of the fire system. The high-voltage electricity generated by the circuit system is supplied to the spark plug through the wire, and the spark plug ignites the mixture in the combustion chamber.

So wires and spark plugs are most likely to cause poor ignition. Spark plugs are consumables and need to be replaced after tens of thousands of kilometers of repair. As for the electric wire, it may also lead to poor conductivity due to its service life. There are already many cars without conductor design.

2. Strength decline+body shaking

When this happens, when the car stops, the steering wheel or the body is shaking, and the members in the car will feel it. If this happens, it means that at least one cylinder of the engine should be in an abnormal operation or flameout state.

Under normal circumstances, a four-cylinder engine can still run if one cylinder is not started. If it is an engine with more than four cylinders, this symptom will decrease with the increase of the number of cylinders, and it is not easy to be detected.

3. Power drop+smoke from exhaust pipe

Abnormal smoke from automobile exhaust pipe is a problem of combustion chamber, which may be a fault of ignition system or a valve.

If there is black smoke, there may be something wrong with the ignition system or the air intake system. The air-fuel ratio is wrong, which leads to the over-concentrated oil and gas can not be completely burned in the combustion chamber and discharged into the exhaust pipe, resulting in tempering. In addition, black smoke will also be produced when the electrode end of the spark plug touches the engine oil or there are foreign bodies on it.

If white smoke comes out of the exhaust pipe, it may be that the engine oil ran into the combustion chamber, commonly known as burning engine oil. The reason why the oil will run into the combustion chamber may be that the piston ring of the piston is worn and the oil runs into the combustion chamber from the lower part of the engine. It may also be caused by the cylinder head on the upper part of the engine and the worn valve guide flowing into the combustion chamber.

4. The car has been used for a long time, and the power is insufficient.

After driving for a long time, it is inevitable that there is also a problem of insufficient motivation. If it is not a major fault, then pay attention to the following points.

(1) Check whether the four wheels are short of air, and check the tire pressure.

(2) Check whether the oil is added too much or the viscosity of the added oil is too high. If you add too much oil, let out some oil and put it in the middle of the dipstick scale.

(3) If carbon deposits are often caused by low-speed driving, use manual mode on high-speed or open roads, and keep the engine running above 4000 rpm 10 min.

(4) If it is because the gasoline used is not good, it will cause carbon deposition in the spark plug for a long time. Check and clean it regularly and replace it if necessary.

(5) If the car is heavy, the power will certainly decrease. Try to put everything you don't need at home to reduce fuel consumption.

Vehicle maintenance knowledge 1 Maintain on time and never delay mileage.

Most cars are maintained at 5000 kilometers. Some car owners have no time to go to the 4S shop for maintenance because they are busy with work and entertainment, so they have to drag the maintenance to six or seven thousand kilometers.

Do this once or twice occasionally, the damage to the car can be ignored, but long-term delay in mileage maintenance will seriously damage the engine, because missing the best maintenance time will reduce the lubricity and viscosity of the oil, which is wrong to save money!

The correct way is to maintain it regularly in strict accordance with the requirements of the automobile manual.

2 parts can't reduce the quality.

Now there are many channels to sell auto parts, with high and low prices and uneven quality. In order to make money, many unscrupulous traders wholesale parts with very poor quality and sell them to consumers. Let's take the air filter as an example. The price of the 4S shop is about 100 yuan, but the roadside garage has the products of the deputy factory from 20 yuan. If you change the air filter for the second time, it is estimated that it will start to leak after 1 or 2 weeks, and finally you have to spend money to buy genuine products. Isn't this not worth the loss?

Therefore, engine oil, brake discs, brake pads and air conditioning filter elements are not cheap. After all, cheap goods are not good. Once there is a quality problem, it may affect life at any time.

3 do regular intensive maintenance.

Deepening maintenance is an item other than standard maintenance. Many 4S shops will introduce them, but most car owners will refuse, because everyone thinks that this is just a project of collecting money, which is not good for cars. In fact, the congested road cities and inferior oil products make the car carbon deposit serious, so it is very necessary to clean and maintain the fuel system (that is, clean the nozzles and valves).

Under normal circumstances, the car needs to be cleaned and maintained once when it travels10.5 million kilometers. If you find that the car is weak, consumes oil and the engine is shaking, you should clean it in time. Cleaning can effectively remove colloid and carbon deposit inside the system and prevent corrosion.

4. Do four-wheel positioning regularly.

Four-wheel alignment is not only done when the car is running off, nor is it just tire alignment, but also affects shock absorption, steering column and chassis parts. Tires are the big feet of cars. Wearing it for a long time will eat tires, and the chassis constraints are different. Therefore, when the car runs to 40,000-50,000 kilometers, it is still necessary to do a four-wheel positioning and accurate positioning, which can slow down the wear of tires and prolong the life of tires.

The following situations also require immediate four-wheel alignment:

1. When changing the steering rod or adjusting relevant chassis parts.

2. Abnormal eccentric wear of tires.

3. The car is seriously deviated.

4. When driving, the steering wheel suddenly becomes too heavy, trembling or floating.

5, wind and sun, wash the car frequently

Nowadays, it is easier to spend money than to earn money. It costs 20 yuan+to wash a car. Many thrifty car owners will reduce the number of car washes or let them wash their cars in rainy days. In fact, this is a big misunderstanding, because bird droppings, chewing gum, dirty rain and toxic dust will all have an impact on car paint, especially bird droppings, which will seriously corrode car paint if they are attached for a long time.

Waxing this beauty will not really protect the car paint, but will look more beautiful.

The secret of saving fuel when driving is 1. You can slide, but don't empty the gears.

At present, most of the models sold on the market are EFI vehicles. When the EFI vehicle slides in neutral, the engine system injects fuel according to the idle speed. When they slide in gear, there are two situations: when the speed is higher than the idle speed, the engine system stops fuel injection, and when the speed falls back to the idle speed range, fuel injection is carried out according to the idle speed. Therefore, it is not the most fuel-efficient state for EFI vehicles to slide in neutral. So if you can, do more gear sliding.

2, the correct gear and speed

The shift timing should be between 2500 and 3000 rpm as far as possible, so that better economy can be obtained on the premise of ensuring power supply. Don't shift gears too early or too late, and the power is insufficient too early; It's too late, and the fuel consumption increases. The vehicle speed can be controlled at 70 ~ 90km/h, in order to find a better balance between fuel consumption and speed. Too fast will increase fuel consumption, too slow will affect efficiency.

3, the rational use of air conditioning

Reasonable use of air conditioning can also reduce fuel consumption. When the temperature is suitable in spring or autumn and the speed is lower than 60km/h, the air conditioner can be ventilated without opening the window, or only using the ventilation function of the air conditioner without using its refrigeration function, so that the air conditioner compressor will not start, thus saving fuel. However, it is not recommended to open the window for ventilation when the speed is higher than 90 kilometers per hour, because the air resistance is very high at this time, and it is more fuel-efficient to turn on the air conditioner.

4. Learning route planning.

It is necessary to plan the route before going on the road. The correct route can often get twice the result with half the effort, and the fuel consumption will naturally decrease. The following principles should be followed when choosing the route: multi-ring road (elevated) and Shaocheng road; Turn right more and turn left less; There are many roads and few paths. Try to avoid traffic jams in time and route, because traffic jams have high fuel consumption.

Warm up in winter, but not for too long.

When getting up and getting on the bus in winter morning, it is best to warm up first, which is good for prolonging and protecting the life of the engine, but the time should not be too long. As long as you see the water thermometer rising from the lowest to the scale, you can start.

6. Pay attention to the running-in period of the new car.