Sometimes the car won't catch fire. What is the reason?

The reason why the car won't catch fire.

The reasons why cars can't catch fire are generally:

1, the battery is dead or the fuel tank is out of oil;

2, the gear is wrong or the steering wheel is locked, which makes it impossible to start;

3, automobile circuit or electronic failure, such as spark plug damage, fuse blowing, oil pump failure.

4, oil problem, adding bad fuel causes the engine not to work normally. If the starter runs normally when the ignition is started, it is not because the battery is dead, but because of other reasons. There are two common reasons. First, the idle motor or throttle is seriously damaged or carbon deposit is damaged, and second, the gasoline pump is damaged. Now ignition failures are rare, because each spark plug is an independent ignition coil and will not be damaged at the same time. How to judge whether the idle motor or the throttle is faulty? Just light the ignition and release the throttle repeatedly. If the idle motor fails, you can step on the accelerator to start it. There are also two cases where ignition cannot be carried out due to improper operation, and they will be encountered occasionally. It's an automatic car. It ignites at point D, stops temporarily at point D, and then stops directly. When restarting, I forgot that the gear was not in P gear, so the ignition could not be started. The second is manual shielding. Vehicles that need to step on the clutch for ignition forget to step on the clutch, or the clutch cannot be started because the mat is too thick. In both cases, there is no sound when ignition is started, and there is no response when ignition is started. In this case of no response, we should first consider the problems of P gear and clutch. The vehicle battery is dead or damaged, the battery life expires, or the vehicle battery is damaged after long-term parking; The battery may be dead because the ignition switch of the car is turned on. When the car is not started, turn on the headlights for a long time and use high-power entertainment systems such as high-power audio.