What are the solutions to the difficulty of starting the vehicle?

Common causes of engine starting difficulties:

1. The ignition difficulty caused by carbon deposition in the car is accompanied by slight shaking at idle, cleaning the throttle, cleaning the carbon deposition in the inlet tract, and cleaning the fuel injector can solve the problem.

2. The ignition energy of the spark plug is weak, and some car owners do not replace the spark plug after the maintenance cycle in order to save money, which will lead to a lack of fire when the ignition energy of the spark plug decreases seriously, and the engine of many models is mostly direct injection in the cylinder, so the requirements for the spark plug are higher.

3. The low pressure of the fuel circuit is insufficient, and the insufficient oil pressure of the low-pressure oil circuit directly leads to the secondary ignition of the engine, the specific reason is that the first ignition is not ignited by the low-pressure oil circuit in the establishment of oil pressure, and the second time can catch fire. Specific inspection components: fuel pressure regulator, gasoline pump, gasoline filter and internal piping.

4. The battery is losing power, and the fault phenomenon of the battery loss is more common, and the first reaction of the owner when the car is generally not hit is that the battery is out of power. The solution is also very simple, you only need to find a car or other battery to take power.

5. The exhaust pipe is blocked, and the situation of exhaust pipe blockage generally rarely occurs, unless it is a coincidence or someone is playing a prank, but this situation is also easier to investigate.

6. The mixture is too thick or too thin, and many car repair masters know a cheat. What happens when the car doesn't hit and the other parts are fine? The master will spray the chemical cleaning to the throttle to hit the car, and the car is easy to get on the car and try it again and again (it is not recommended that the owner operate it himself).

7. The engine timing is not right, the engine timing does not match the engine must not be able to get on the car, and many car engines are in the form of timing belts, and the timing belt itself has no disadvantages, but some models of engines can cause tooth jumping when replacing the generator belt, resulting in no car.

FYI, 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.

Analysis of the causes of car start-up difficulties and solutions.

1. Fuel injector problem. Treatment: The injection pressure of the fuel injector is wrong (check with the fuel injector detector, standard 175+8bar), the pressure is not.

If enough, use the adjustment gasket to correct the injection pressure. Precautions: After removing the fuel injector, you must use a new 0-ring and a new adjustment pad for reinstallation.

2. Oil viscosity problem. Treatment: Check that the oil meets the standards. Seasonal changes in whether to change the right oil.

3. The gap is not right. Treatment: Check and adjust the valve clearance; Check the intake and exhaust valves for wear or damage; Check the wear of piston rings and cylinder liners and the coking or fracture of air rings; Check or adjust whether the piston top clearance is too large.

4. Smoke limiter solenoid valve problem (applicable to supercharged engine). Treatment: Check whether the solenoid valve is electrified, replace the solenoid valve if it does not work, and check the circuit problem if it is not energized.

The reasons for the difficulty of ignition of automobiles are: battery failure, spark plug blockage, gasoline pump pressure relief, etc.

1. Battery failure

First ignited, the car engine will make a "da-da-da" sound, and it will catch fire as soon as it hits. If you hear the sound of "da-da-da", the car still does not ignite, and the battery indicator on the lead-resistant dial of the car instrument also lights up. At this time, the battery is out of power.

Workaround:The vehicle in front uses a towrope to pull the car behind to walk.

2. The spark plug is blocked

If the vehicle starts successfully, but there is obvious frustration when starting, then we should observe the operation of the engine, and there is continuous or intermittent shaking, it is likely to be caused by the spark plug.

Workaround:You can start with the spark plug to see if there is a hidden danger in the withering, so that it can be replaced in time.

3. Gasoline pump pressure relief

Many car owners will encounter the situation that the first ignition fails, and the second time it will succeed. This situation should not be taken for granted as the cause of the battery's power loss, in fact, it is mostly related to the pressure relief of the gasoline pump. After a long period of use, the gasoline pump will wear out internally, which will lead to insufficient fuel supply pressure and difficult ignition.

Workaround:In this case, replacing the gasoline pump can solve the problem.

Unable to start or difficult to start.

The phenomenon of not being able to start the sail may be to turn on the ignition switch engine without any starting signs, the starter has a sound but can not rotate, the starter can rotate but can not move the dynamic Sun Liang machine, or the engine can be driven by the starter but can not start. Difficulty in starting may be the slow rotation of the engine, or the uneven sound when the engine rotates. Starting difficulties may occur in freezing weather or very hot weather, or at room temperature, or it may be difficult to start a cold car for the first time, and it may start normally when the car is hot.

These phenomena are related to the poor operation of the main injector, cold start injector, temperature control switch, ECU and control circuit, battery power loss, ignition or pulse generator damage, fuel system does not supply oil or abnormal oil supply and other factors. For automatic transmission cars, failure to start may be due to the wrong position of the transmission handle.

3. Check whether there is too much charcoal accumulated on the throttle and idle valve, and you can find that the idle machine is also unable to inhale air due to stagnation. In this case, the charcoal should be cleaned. Also, confirm that the water temperature sensor of the engine control system is working properly.

Difficult to start hot and difficult to start cold. The first thing to do is to check the oil viscosity. As the viscosity of the oil increases, the internal resistance of the engine inevitably increases, the starting motor becomes weaker, and cold start becomes difficult.

Wrong startup method. After the key is screwed into the second gear, don't be in a hurry, start the oil pump first, and then start the oil is a cold start difficulty caused by improper human operation. That is, it takes a long time, some friends don't like maintenance, the engine has too much carbon deposit, the oil and gas of the engine are adsorbed by carbon deposits, and the mixture is too thick or too thin.

The capacitance capacity of the battery decreases, and the ignition ability of the spark directly decreases. Only one gasoline was sprayed, and now two gasoline are sprinkled, so the spark plug problem is more serious. The air filter inside the activated carbon canister was blocked, blocking the only passage between gasoline and air, and the mixture was too thick or too thin, which was said to be more complicated when hot start difficulties occurred.

Check the battery connector to see if there is halogen phenomenon, whether the contact is poor, and whether it affects the normal operation of the starter. The brine can be slowly rinsed with boiling water and the bolts tightened. If the battery is used for too long, check whether the storage is insufficient, replace the battery in time, and the universal system can confirm whether the voltage and current are normal in the morning.

Check if the spark has accumulated too much carbon, or the jump fire is not enough if the electrode spacing is too large, the engine**, clear the spark, remove the carbon deposit, see the spark plug with an iron jump, the jump fire is light green, the strong spark is normal, the jump needs a faint red light or the jump intermittent replacement spark. Adjust the mixing concentration, the temperature is low in the morning in winter, and the proper adjustment of the mixed gas concentration will help the engine start, and the electrospray engine can find a professional electrician to use a decoder to properly concentrate the idle mixing concentration data. Suck in a normal engine and flap the throttle a few times before starting, and the gas mixture will become thicker and easier to start.

In cold places, bake the engine oil pan for a few minutes with a high-power baking lamp to heat it up, reduce the oil viscosity, reduce the load on the engine, and help with starting.

The surface of the engine's intake manifold can be sprayed with boiling water. After boiling water heats the intake manifold, the temperature generated by the manifold occurs. The mixture flows into the cylinder through the intake manifold, and as the temperature changes, the combustion temperature of the mixture increases, and the engine starts easily.

Parking at night is important, so it's best to park in a garage or in a warm place. It is best not to park in the open air. Due to frost, it becomes difficult to start.

After parking, turn off all electrical appliances in the car, turn off the power switch, prevent power failure, and help start in the morning. The manual transmission presses the clutch when starting in the morning, cutting the power connection between the transmission and the engine, reducing the drag when the engine starts, and helping the engine to start.

If the vehicle is difficult to start, then at this time it is necessary to check whether there is a problem with the ignition device, or the battery is dead, and then you should also touch the temperature of the engine, if the weather is too cold, then you can use a hair dryer to blow the engine at this time, and you should also go to see if there is a fault or blockage somewhere, you must check and deal with it in time.

At this time, you can check the status of the battery, you can also change the appropriate oil, and replace the spark plug in time, so that this problem can be well solved.

You should check your spark plug, if the spark plug is broken, then you should replace one, and you can also check the electrical high-voltage wire.

If you want to solve the problem of difficult car starting, I think you should first do a comprehensive inspection of the car to know the main reason for the difficulty in starting the car, and then carry out repairs, so as to solve the problem. There are many car owners who will not look for the reason why the car cannot be started, but will force the car to start, which will cause certain safety hazards to the car, and will also lead to quality problems in the engine.

Therefore, if there is such a problem, you should go to the 4S shop in time to call the rescue**, and the car can be repaired through the maintenance of professionals, and you must not do it yourself to repair, I think this is very bad, because the do-it-yourself repair may cause more serious damage to the car, and even the reason for the difficulty in starting can not be found. Therefore, it is necessary to find a professional person to repair it.

After buying a car, you must check and maintain the car, because the driving state of the car is very affected by the weather and road conditions, plus the use time is too long, there will definitely be some problems, we have to check the running status of the car when driving, because only in this way can we ensure the safety of our car and will not have too many failures. As a means of transportation, the car appears in our society, which greatly facilitates our difficult problems, so we must check the quality of the car more to ensure that there will be no problems when driving, so as to ensure our personal safety.

Summary: The car has a history of more than 100 years from its birth to the present, and after more than 100 years of hard work, the quality and life of the car are now better than the original. When we ordinary people buy a vehicle, it is recommended to buy a car with a brand guarantee, and don't be greedy for cheap, because only in this way can you buy a suitable and reliable car, if you are greedy for cheap to buy a car of poor quality, it will bring great troubles to life and mood.

1. Check the status of the battery.

In most cases, the difficulty of starting the car in winter is caused by the loss of battery power or the expiration of the battery life. When the battery is low, the speed is weak when starting the car, and only the clicking sound is heard, and the clicking sound will gradually become a clicking sound when the ignition is lit again. Do not ignite continuously to avoid the battery running out.

2. Change the appropriate engine oil.

In winter, as the temperature drops, the viscosity of the oil increases, making it difficult for the oil to flow, which increases the resistance of the engine. If it is difficult to start, check whether the oil label is incorrect.

3. Replace the spark plug in time.

After a few years of use, spark plugs are prone to cause problems such as carbon deposition, leakage, excessive clearance, and ablation, which will cause difficulties in car ignition, cold start, and even hot engine start, and often need to be ignited multiple times. Therefore, when driving to a certain number of kilometers or feeling that the vehicle is difficult to start, weak, shaking, increasing fuel consumption, or inexplicably stalling, please check the spark plug status and replace it in time.