Why did my car run without strength when it first started?

It is normal for the following two situations to have a weak start:

1. When the cold car starts, even if you step on the accelerator deeply, the speed of the car is very slow, and it is okay after the hot car.

This is a protection mechanism for the gearbox and engine, as is the case in many models. Because in the cold car state, the lubricating oil has not fully lubricated the components, if the speed is increased sharply, the wear and tear on the vehicle gearbox and engine is more serious.

2. The displacement of the car is small and the load is large, and there will be a weak start. For example, if you usually drive by yourself most of the time, suddenly the car is full of five people a day, and when you start, you will obviously feel that the power is insufficient.

There are many reasons for vehicle failure, such as poor valve sealing and insufficient cylinder pressure; Caused by excessive carbon deposits in the inlet tract; Caused by spark plug deposition or incorrect gap; Fuel injector is blocked, caused by insufficient fuel injection, etc.

The most common is throttle carbon deposits. The build-up of carbon deposits in the throttle can affect the amount of air taken intake

There are many possibilities, such as a weak start, such as a dirty throttle, or a problem such as fuel injection ignition, etc., can be caused, I hope it can help you, I wish you a happy life.

Hello, according to your description, it may be caused by carbon deposits in the vehicle engine, it is recommended that you go to the repair shop to clean the carbon deposits in the throttle and intake tract, and then match the throttle with a computer.

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The car started weakly, but it ran normally.

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

Hello, according to your description, this problem may be a problem with the engine. 1Gasoline pressure measurement and gasoline filter replacement are required. 2. It is necessary to check the spark plug electrode gap and clean the throttle.

3. Check whether there is air leakage in the air inlet pipeline and whether the air filter is particularly dirty, causing poor ventilation. Finally, consider using a computer to read the fault.

The car starts weakly and can't afford to add oil, easy to turn off the engine and give the oil in the big and there is no response, the flat road is relatively good to start, you can refuel at high speed, the reverse start can give oil, and the forward pour on a small slope is not good, all of the above are replaced, the whole car has no fault code, the data flow is normal, it seems that you have an operation problem or the engine displacement is low.

1. Find the oil circuit system.

The oil circuit system is where the car can easily go wrong. Insufficient fuel entering the combustion chamber can be caused by a clogged injector, a leaking oil line, a reduced gasoline pump, or a blocked gasoline filter. The main reason for the lack of powerlessness in the car is that the engine suddenly cannot eat the oil, and when the gasoline filter is blocked, the car may not be able to eat the oil when it tilts.

If you can't inject fuel at high pressure, you won't be able to atomize the fuel effectively, so the combustion efficiency will be reduced and the horsepower will not reach the desired target.

If you suddenly become extremely weak when the body is tilting, it is likely that there is a problem with the fuel filter in the fuel system. Check that the fuel lines have specific pressure gauges, and the engine also has a valve interface reserved to check the fuel pressure. If you're buying a used car, it's a good idea to swap it out in the first place.

However, if there is no improvement after replacement, it is necessary to check other oil circuit components.

2. Find the 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 may be in the air filter, or throttle system blockage. If there is a problem with these small parts, it will cause insufficient air intake.

If it is a problem with these parts, it is okay to repair or replace them in time.

3. Find the 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. Note: There are many cars that do not have a wire design.

The car is not running energy, which means that the power is insufficient, if there is not a problem with the engine motor or there is a problem with the gasoline.

Sometimes carbon deposits in the engine can also cause the car to run sluggishly.

There are two reasons for the lack of acceleration of a car, the first is carbon deposits in the valves, idle motors, intake ducts, inside the combustion chamber and spark plugs.

The second reason is the poor quality of gasoline oil. This is one of the most important reasons for the inability of car acceleration and the problem of many car owners' inability to accelerate, that is, the quality of the oil used is poor, which will affect the gasoline filter element and oil circuit, which may lead to poor oil supply, resulting in weak acceleration.

If your vehicle is not running well on the road, then let me first ask you how old is the car? If you buy it early, the machine is aging and worn, and it is naturally not as powerful as a new car.

If you are in the case of a new car, then it is necessary to check it out to see if the vehicle is faulty**! Either the quality of the added fuel is not good, or the type of fuel is wrong. Either the type of oil you want to change is wrong, or the quality of the oil is not good.

will cause this phenomenon to happen!

If you are an old car, first check it (including the things I said above for new cars), and then check it to see if it is caused by too much carbon accumulation in the engine.

For example, the power drop caused by the piston gap of the old steel barrel of the engine is too large, the spark plug is not replaced in time, the throttle is too dirty, the air intake system (this will also happen if the air filter is dirty), the pressure of the fuel, the pressure of the engine oil, etc. It can also lead to this phenomenon!

If you are a manual car, (including the above needs to be checked), also check to see if there is a problem with the clutch system, including the degree of wear of the clutch plates, the degree of wear of the pressure plate, and also the braking system, to see if there is a problem!

If you are in the case of an automatic transmission car, (including the items to be checked in summary) the transmission of the automatic transmission itself is computer matching. Check to see if it's a problem with the shift solenoid valve!

Overall, there are many factors that cause such problems in vehicles, and maybe I am not talking too comprehensively. It is necessary to carry out maintenance and inspection in a professional place to know where the problem is.

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From starting, to accelerating, to driving to top speed, the car is a relationship between the engine and the gearbox.

The power of a car refers to the work done by the engine cylinders per unit of time, and the unit is kw (kilowatts). There is another important data that you have not listed, that is, torque, which refers to the value of the driving force of the engine in a unit of rotation, the unit is n m (Newton meters), and the torque of the engine is the embodiment of the car's ability to speed up.

To put it simply, the amount of power determines how fast the car can run, and the amount of torque determines the car's ability to accelerate.

Whereas, the gear of the transmission is to control the gearing ratio of the engine driving the car. In the case of relatively low shifting, the ability of the engine to do work to drive the car is very straightforward, suitable for starting and accelerating. In the case of relatively high transmission speeds, the ability of the engine to do work to drive the car is more durable, and it is suitable for high-speed driving conditions.

That's why the forward gears of the car should be divided into 4 or 5 gears, and the high-performance sports car should be divided into 6 or even 8 gears, in order to give full play to the potential of the engine, the gearbox gear ratio is set more reasonably, so as to achieve a relatively balanced state in acceleration ability and top speed.

That's the principle.

Here's a simple and illustrative example. You've ridden a bike with a shifter (a racing bike with a curved handlebar, with a shift adjustment on the right handlebar), and you've had to adjust the shifts to get the most out of your bike as you ride the bike. When a person rides on it, the human leg is equivalent to the engine, the gear adjuster on the handlebar is the gear, and the large and small gears on the rear wheel are the transmission.

Adjust the transmission chain to the largest rear gear, the force is the most direct, equivalent to the first gear of the car, you will ride very low-effort, but you can't run fast; Then you move to a slightly smaller gear, and you feel like you're riding a little harder, but the acceleration is very fast, which is equivalent to 1st gear in the car; Then tune to the smallest gear, and you're going to ride harder, but very fast, and that's the high gear of the car.

If you are asked to directly use the governor to adjust the transmission chain to the smallest gear, and then start riding a bicycle, you will find that you can't pedal at all, or very hard, and the speed is very slow, which is equivalent to you driving a car with 4 gears to start, a reason, hehe.

Now when it comes to running-in, everyone thinks it's the run-in of the engine, which is not entirely true! The break-in period of a car includes not only the grinding of the engine.

It also includes the run-in of the transmission, the run-in of the braking system and the run-in of the tires, etc., and the run-in period of the car is the main one.

A general term for component break-in.

Since the parts are still in the running-in period, excessive load and excessive speed will aggravate the impact on the parts. That's not only.

The roughness cannot be reduced and can cause damage to the part. Pressing the throttle hard to accelerate sharply actually makes the engine work instantly.

What a car, a handwave, or a self-wave.

Check the spark plugs, ignition coil distribution lines, whether there should be a lack of fire or cylinders, or it is possible that the throttle is too dirty or the fuel injector has too much carbon. When the key is opened, the oil circuit is not yet oiled, and the engine only burns the remaining oil when it starts, waiting for the oil to continue to be supplied. During this time, the car will shake and even stall.

Solution: Before starting, twist the key three or four times repeatedly, don't ignite, just unscrew it, repeat three or four times and it's OK.

The cause may be a dirty throttle valve or too much carbon buildup in the fuel injector. When there is too much carbon inside the engine, the gasoline ejected from the cold-start injector will be absorbed by the carbon deposit, resulting in a cold-start mixture that is too thin and makes it difficult to start.

In this case, only when the gasoline absorbed by carbon deposits is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the vacuum suction of the engine after the car is burned, and the mixture becomes thicker, and the combustible mixture of the engine is dilute and thick, resulting in idle shaking after cold start. The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon deposits will affect the smooth cold start. Workaround:

Clean up the carbon deposits.

There is a high probability that the car and the weak start are due to the clutch slippage. Clutch slip is mainly manifested in the acceleration of the car driving, the speed can not increase with the increase of engine speed, and the power of the engine can not be completely transmitted to the driving wheel, resulting in driving weakness, especially when going uphill.

The main reason for clutch slippage is the lack of friction of the clutch friction plates; If the clutch is not in place, grab the gear or take it out of gear; long-term semi-clutch state sports car, stepping on the clutch and sliding; When the gear or disgear is not in place, the car will slam the throttle when the gear or disgear is not fully in place, resulting in abnormal loss of the clutch. Solution: Check the clutch and replace it if necessary.

In addition, the engine needs air in addition to oil, if the air filter, throttle and other components are blocked or there are problems, resulting in insufficient air intake, it will also cause the car to accelerate inability to speed up slowly, and there is a sense of frustration. Solution: Clean the air filter, clean the throttle and other parts.

Photo by Q&A) @2019

The reason why the car started weakly: 1. When the cold car starts, even if you step on the accelerator deeply, the car will speed up very slowly, and you can be right after the hot car. This is a kind of protection mechanism for the gearbox and engine, and many models do this.

Because in the cold car state, the lubricating oil has not fully lubricated the components, if the speed is increased sharply, the wear and tear on the vehicle gearbox and engine is more serious. 2. The displacement of the car is small and the load is large, and there will be a weak start. For example, I usually drive by myself most of the time, and suddenly the car is full of five people on the base one day, and when I start, I will obviously feel that the power is insufficient; 3. There are many reasons for vehicle failure, such as insufficient valve sealing, insufficient cylinder pressure; Caused by excessive carbon deposits in the inlet tract; Caused by spark plug deposition or incorrect gap; Fuel injector is blocked, caused by insufficient fuel injection, etc.

Reasons for the weak start of the car: 1. Carbon deposition: carbon deposition occurs in the valve, idle motor, air intake, combustion chamber and spark plug, so the car will have a weak start.

2. Driving on congested roads: The car will accelerate and slow down for a long time on the congested road section, which will cause the car to show a feeling of weakness when driving again. 3. The quality of oily orange products is poor

Poor oil quality will affect the gasoline filter and oil circuit, which may lead to poor oil supply, resulting in a weak start. 4. Three-way catalytic converter blockage: it will directly affect the acceleration of the vehicle, and will also lead to an increase in fuel consumption, resulting in a weak start.