All the reasons for the lack of power in the car

Possible causes of automobile power shortage

1, fuel quality

For cars, added fuel is also necessary. For example, a BMW is definitely different from Chery's oil. Your BMW was supposed to be filled with 95 and 97 premium oil. At this time, if you choose to add 92 # oil, there will definitely be a lack of power. Not only that, the cleanliness and combustion rate of low-grade engine oil are low, and it is easy to burn incompletely, and it will also leave a lot of carbon deposits, which will cause damage to the engine.

2. Oil circuit failure

Oil circuit failure means that the fuel is not delivered to the combustion chamber through the fuel pipe, which makes the engine unable to work normally. If the amount of gasoline entering the engine combustion chamber is not up to standard, the combustion chamber does not have enough fuel to ignite and explode, which will lead to less and less power of the car. The main causes of the failure are the blockage of the oil nozzle, the reduction of the power of the gasoline pump and the blockage of the gasoline filter. The owner can go to the repair shop for inspection.

3. Air intake system

The power output of the engine is produced by the ignition of the mixture of gasoline and air. If there is a problem with the air intake system, it will definitely bring about a small engine power output. Some car owners have also experienced obvious lack of motivation in the western region with high air pressure. At this time, the air is actually very thin and the air intake is very small. Therefore, the failure of the air intake system is generally due to the blockage of the air filter and the valve system.

4. Engine cylinder

As an ordinary vehicle, it is usually a four-cylinder engine. If one cylinder is not in normal ignition operation, the power will be obviously insufficient. Even a tandem bike, if one person doesn't step on it, the other person will feel particularly heavy. The owner can start to see if the steering wheel or the car body is shaking to observe the problem.

Performance and solution of insufficient driving force of automobile

First, the car won't run if you step on the gas pedal again.

1, find the oil 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.

Second, 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.

Third, 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 the exhaust pipe emits blue smoke, 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.

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

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 for more than 4,000 revolutions 10 minute.

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

The heavy car will certainly reduce the power. Try to put everything you don't need at home to reduce fuel consumption.