The more the car drives, the weaker it gets, and the fuel consumption is getting higher and higher,

Let's talk about buying a car, using a car, maintaining a car, and repairing a car.

1. Sensor failure; 2. The quality of gasoline is not up to standard; 3. The air leakage of the inlet pipe leads to the mixture being too thin; 4. The fuel pressure is low, and the injector and fuel filter are blocked; 5. The signal of the pressure sensor and the throttle position sensor is abnormal; 6. The ignition timing is inaccurate and the ignition is too late. 7. Weak high-voltage sparks due to poor spark plugs, igniters or high-voltage wires; 8. The throttle is dirty; 9. The exhaust gas recirculation system works poorly; 10. The exhaust pipe is blocked; 11. The cylinder pressure is low; 12. Turbocharging system failure 13. Clutch three-piece set 14 Air filter blockage, piston ring break or stuck, poor valve sealing, late ignition time, carburetor mechanical failure, air intake pipe leakage, individual cylinders do not work well or do not work, etc. However, some of the faults of insufficient engine power can be solved by use. Such as:

General wear of the cylinder, poor flow of the carburetor oil passage, etc. When the user reflects that the engine power is insufficient, when the oil is burned, we should first judge the cause of the lack of power, in the exclusion of the air filter blockage, the carburetor throttle can not be fully opened, the ignition timing is not good, the intake pipe gasket is damaged, the individual cylinder does not work or does not work well, and then according to whether the engine fuel consumption is too high to judge the carburetor working condition, if the fuel consumption is too high, the exhaust smoke is very thick, it is likely that there is a mechanical failure such as the volume hole falling off, this fault must be repaired as necessary. Finally, we have to judge the wear and tear of the engine cylinders.

Engine wear directly affects the tightness of the cylinder; Therefore, checking the tightness of the cylinder can largely reflect the degree of wear of the cylinder, and the most convenient way to check the tightness of the cylinder is to use the cylinder pressure gauge to check the compression pressure of the cylinder.

When the acceleration of the car is weak, it should be accompanied by the occurrence of trembling when the engine accelerates, and there may also be guns, black smoke, etc. The reasons for it are manifold. It is mainly reflected in the three major aspects of oil, electricity and machinery.

First, the oil circuit failure.

Many people think that throttle carbon deposits will affect the acceleration performance of the engine. However, I think that throttle carbon deposition only affects idle instability, and has little impact on engine acceleration performance.

The air filter element is blocked or water ingress will make the air volume small, resulting in too thick the mixture, incomplete combustion of the engine, and poor acceleration, at this time, the exhaust pipe will be seriously smoky.

Cracks in the oil pipe or loose air leakage in the joint, and insufficient pressure of the oil pump, resulting in poor oil supply and weak acceleration.

The injector is poorly atomized or clogged, resulting in the cylinder not working well or not working. Affects acceleration performance. Black smoke may come out of the exhaust pipe.

The issue of oil products is also an aspect. If the water content of the oil is too large, the exhaust pipe will emit white smoke.

Second, circuit failure.

There is a problem with the air flow meter, which causes a decrease in the air intake, resulting in an over-concentrated or over-thin mixture, which affects the acceleration performance.

The spark plugs of individual cylinders are damaged, that is, the cylinders are missing, which affects the acceleration performance. Also, leakage of cylinder line, etc.

High water temperatures or bad temperature sensors can also affect acceleration.

A clogged three-way catalytic converter or a faulty oxygen sensor can also cause poor engine acceleration (many people think that the oxygen sensor does not affect the engine, only the emissions).

Third, mechanical failure.

Engine valves, cylinder liners, pistons, and rings are worn out, resulting in cylinder pressure not meeting the requirements.

The intake valve clearance is too large, and the exhaust valve clearance is too small. Or the intake and exhaust valves are out. This will lead to a lack of cylinders. Affects acceleration performance.

The timing belt (chain) wears out, resulting in a sooner or later ignition time pattern that also affects the acceleration performance.

A collapsed engine gasket can also cause this problem.

Excessive carbon build-up in the cylinder. It's also a reason.

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

Hello, acceleration weakness. Fuel consumption increases, this is to check whether the clutch is slipping, and there is also to check the spark plug clearance, ignition coil for leakage.

01 Check the oil circuit system The oil circuit system of the vehicle is more prone to problems, and the main reason for the weak acceleration is that the engine does not have enough oil. Plugged fuel injectors, leaking oil lines, reduced gasoline pump power, or clogged fuel filters can all contribute to this. For example, if the fuel injector is clogged or the gasoline pump fails, if the fuel cannot be injected at high pressure, the oil will not be effectively atomized, and of course, the horsepower will not reach the desired target. Look

The car accelerates weakly, and the acceleration shake has high fuel consumption? What exactly is the reason?

There could be two reasons for this:

Carbon deposits occur in the valves, idle motors, air intakes, inside the combustion chamber, and spark plugs, so a stop-fire occurs when the car is idling.

The car drives for a long time on a congested road, accelerating and slowing down, so it will eventually cause the car to show a feeling of weakness when driving again.

One of the most important reasons for the weak acceleration of the car is the poor quality of the oil used, which will affect the gasoline filter element and oil circuit, which may lead to poor oil supply, resulting in weak acceleration; It will also affect the service life of the three-way catalytic converter of the exhaust system, and if the three-way catalytic converter is blocked, it will also directly affect the acceleration of the vehicle, and will also lead to an increase in fuel consumption, resulting in the phenomenon of weak acceleration.

The clutch is heavily worn, causing slippage.

Solution: Check the valves, idle motor, intake tract and inside the combustion chamber and spark plugs, and clean up if there is any blockage.

Problems caused by traffic jams can be temporarily turned off and waiting.

Replace the fuel of the car, do not use poor quality oil, it is easy to cause permanent damage to the car.

The reason for the drop in power.

In fact, after a long period of use, the power of the car will decline, which is mainly due to the fuel system, air intake system and circuit system.

1. Fuel system.

We all know that the oil system is where the car can easily go wrong. Insufficient fuel entering the combustion chamber can be caused by clogged injector carbon, oil leakage, reduced power of the gasoline pump, or clogged gasoline filter. Among them, carbon deposition can not only cause the fuel injector to be blocked, but also easily cause the intake valve, combustion chamber, three-way catalytic converter and other parts to increase oil consumption.

2. Air intake system.

The engine of the car must be able to run, in addition to the fuel and air, otherwise the engine will not be able to run smoothly. The most common intake problems are in the air filter, or the throttle system, which is clogged.

3. Circuit system.

The circuit system here mainly refers to the electricity consumption of the ignition system. The high-voltage electricity generated by the circuit system is supplied to the spark plug through the wire, and the spark plug jumps over to ignite the gas mixture in the combustion chamber. Therefore, the wires and spark plugs are most likely to cause poor ignition.

The spark plug is a consumable, fixed tens of thousands of kilometers to be replaced, as for the wire, there is also a possibility of poor conductivity due to the service life.

The most important of the above reasons is carbon deposition blockage, which can not only cause a decrease in power, but also easily cause problems such as poor acceleration, stuffiness, fuel consumption, noise, difficulty in starting a cool car, idle shaking, and exhaust choking. Therefore, we must prevent and remove carbon deposits.

How to prevent and remove carbon deposits.

1. Avoid idling for a long time.

The longer the idle time, the longer the engine reaches normal temperature, the slower the rate of evaporation after the gasoline is injected into the back of the valve, and carbon deposits are generated. In addition, when idling, the air flow into the engine is small, so the scouring effect on carbon deposits becomes weak, which promotes the deposition of carbon deposits.

2. Clean up on time.

If carbon deposits have caused failures, such as idle jitter, difficulty starting, high idle speed, excessive exhaust gas, etc.

1. Ignition coil.

If there is a problem with the ignition coil, it will cause some cylinders to not operate and the power will decrease, but the oil that should be sprayed will still be sprayed, but it will not play any role, so the fuel consumption will rise.

2. Spark plugs.

If there is a problem with the spark plug, then it will lead to insufficient ignition energy, and the same amount of oil will provide different power, so the fuel consumption will also increase.

3. Air filter.

If there is a problem with the air filter, the intake air is easy to be blocked, the oil-gas mixture becomes poor, the combustion is incomplete, the natural power is insufficient, and the fuel consumption will slowly increase.

4. Battery. If there is a problem with the battery, the voltage is unstable and the power is insufficient, not only is it difficult to ignite, but also the power of the car will be insufficient during use, and the battery is charged frequently, which will also increase the fuel consumption of the car.

5. Tire pressure. If there is a problem with the tire pressure, it is as hard as you pedal a bicycle with flat tires, and the car tire pressure is insufficient to consume fuel, which will naturally lead to an increase in fuel consumption.

6. Carbon deposits. Carbon deposition is the most common, as long as the car is in use, there will be carbon deposition slowly, which will not only affect the power of the car, but also affect the combustion quality, and even absorb fuel, which has a particularly large impact on the increase of fuel consumption.

Engine shaking, high fuel consumption, and weak acceleration are all to blame for the throttle!

There are many reasons for the high fuel consumption of automobiles and the lack of acceleration, there are air filters, gasoline filters, fuel injectors, aging nozzles, etc., go to the repair shop to check it.

Generally speaking, the car engine has too much carbon deposit, the car engine lacks cylinders or the car has been running for a long time, the number of kilometers and the engine wear will be mostly caused, so it is recommended to find a regular auto repair shop to overhaul it for the sake of prudence.

1.It feels like it's boring to drive when it's cold, because the viscosity of the oil changes with temperature. If the temperature is low in cold weather, the viscosity of the oil will increase, the resistance of the engine will increase, and the power to be consumed will also increase, so I will feel that the car is stuffy.

2.In addition to the stuffy car in cold weather, several situations will also cause the engine to be stuffy. The first reason is a blockage in the oil circuit.

If the oil supply is insufficient, you will clearly feel the lack of power. The second is that the injector is leaking or the nozzle is blocked, which will also lead to poor combustion and engine stuffiness after fuel injection. Third, the intake and exhaust system is looking for problematic fibers.

If the valve seal is poor or the clearance is too large, it can cause pressure relief in the cylinder and make the engine feel dull.

There are many reasons for the increase in fuel consumption of vehicles. Today I will tell you about the internal causes and solutions of the increase in fuel consumption, which are usually mainly divided into the following four types.

1. In the short term, the main reason for excessive carbon deposition in the engine is the use of unsuitable oil, which is more likely to occur after returning from a long-distance drive or lending the vehicle to others. If you drive a long distance, you will definitely fill up the whole world's oil. Even for the same number of fuels, the quality of the fuel varies around the world, so there is a high risk that the wrong fuel will be misused.

However, if the car is lent to someone else, it is more difficult to control the quality of the added oil.

In this case, Lungu suggested that the car must be driven to the 4S shop, and professional technicians should clean up the carbon deposits in the engine. And it is best to drive on the highway for a period of time after cleaning, which is conducive to increasing the exhaust volume and allowing the stronger airflow to bring out larger carbon particles.

2. The vehicle oxygen sensor is damaged, and the oxygen sensor is the internal control unit of the car, which mainly monitors the oil-gas ratio of the first wide machine. Once damaged, it will cause an imbalance in the oil-gas ratio of the engine, and the fuel consumption will definitely increase suddenly. When the oxygen sensor is damaged, dark exhaust gases are emitted from the exhaust pipe while the vehicle is moving.

Solution: Replace the oxygen sensor in an ordinary 4S shop. Some old irons may be repaired at a "roadside stand" for a low price, but after replacement, Lungu strongly recommends using the detector again after a hot train (the oxygen sensor works at high temperatures), and the fluctuating signal output is the real thing.

Because the oxygen sensor does not work when the vehicle is not working, even if it is loaded with a fake, it cannot be read directly from the meter.

3. The "three filters" have not been replaced for a long time in the process of vehicle use, and the three filters (machine filter, air filter and oil filter) must be replaced regularly. If it is not replaced for a long time, it will become dirty and greasy, affecting the use and sending an error message to the engine control unit, resulting in insufficient fuel combustion and increased engine carbon deposits.

Solution: According to the mileage, regularly maintain the vehicle and replace the "three filters".

4. Although the reliability of the engine electronic control unit is very high, in those vehicles with a long service life, some faults will inevitably occur, such as damaged manifold blocks, loose bolts, open welding joints of electronic components, and faulty resistor capacitor components. Problems with the engine electronic control unit will directly lead to difficulty in starting the vehicle, increased fuel consumption, poor power performance, and thick exhaust gas.

Solution: Drive to the 4S shop for a comprehensive physical examination, and pay close attention to replacement and maintenance.

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