Many friends have such troubles. When the car is started by turning the key, the starter does not turn. It often needs to turn the key for a few seconds before the starter turns to start the car. Why? Do you know the reason for the ignition delay?
Reasons for ignition start delay
1. Poor oil quality: if the car suddenly starts from normal to delayed, first think about whether you have changed gasoline of different grades and different places in the near future.
2. Car carbon deposit or dirty parts
A. throttle valve: carbon deposition on the throttle valve will affect the perception of throttle and air intake, resulting in lag or even error of computer transmission signal, resulting in failure to start the vehicle;
B. fuel injection nozzle: it is easy to adhere some colloids at the fuel injection nozzle, which will block the normal fuel injection volume and cause poor gasoline atomization, so as to delay the ignition and make it difficult to start the car;
C. spark plug: if the spark plug has more carbon deposit or there is air leakage at the joint between metal and porcelain, it will cause poor ignition;
D. storage battery: dirty battery terminals may also cause poor conductivity, thus affecting ignition; Of course, insufficient battery power may also cause ignition start delay;
3. The starter relay is faulty;
4. The starting motor is faulty;
5. Improper viscosity of engine oil: for example, when the temperature is very low, the viscosity of engine oil is high, resulting in slow oil circulation and dry mechanical friction, so it is difficult to start, and it will hurt the car very much;
6. There is a problem with the ignition switch;
7. The carbon canister solenoid valve is faulty: the ignition is weak after exposure, but there is no secondary ignition. Generally, there is a problem with the carbon canister solenoid valve, because the transpiration of gasoline after exposure is particularly large, and the valve seal of the carbon canister valve is not good, which is easy to flood the cylinder, i.e. wet wall.
8. There is a problem in the calibration of ignition timing;
9. Camshaft sensor failure: when it is confirmed that there is no problem in timing calibration, focus on checking whether the camshaft position sensor works normally;
10. Insufficient oil pressure: pressure relief of gasoline pump and poor sealing of fuel injection nozzle will lead to insufficient gasoline pressure, which will prolong the ignition time.
Winter car maintenance tips
1. Lubricating oil
The lubrication requirements of the automobile are high in winter. If the engine oil is used in summer, it must be replaced. The engine oil with long service time, black color and poor adhesion should be replaced to ensure the smooth start of the engine.
2. Antifreeze
The amount of antifreeze must be appropriate. Attention should be paid to the freezing point and model of antifreeze in different regions and different models. The antifreeze that has been used for more than two years should be replaced, and the mixed antifreeze must be replaced one year. Note that products of different brands and models should not be mixed.
3. Battery
The electrolyte in the battery cannot be deficient. It is better to keep the electrode plate submerged for 10mm, check the specific gravity of the electrolyte and maintain the charging capacity. If the battery is not charged enough, it is very easy to crack in the severe cold.
4. Rubber
The rubber becomes hard and relatively brittle in winter, which not only reduces the friction system, but also is easier to leak and puncture the tire than in other seasons. In winter, the inclusions in the tread shall be cleaned frequently, and the tires that have been repaired more than once shall be avoided as far as possible. It is also not allowed to replace the tires with large wear and different patterns of different brands.
5. Warm air
Check the heating pipeline and fan, especially pay attention to whether the air outlet of the defrosting air outlet under the windshield is normal, whether the heat is enough, and whether there is a problem with the defrosting air outlet of the windshield. Driving in winter will bring many troubles and unsafe factors.