The engine cannot be started, or the engine does not run and the engine runs but does not work

解决：可以通过听汽车喇叭的声音及点亮大灯的方法来做个初步判断。

Solution: you can make a preliminary judgment by listening to the sound of the car horn and lighting the headlights.

现象1：如果喇叭声音嘶哑而发动机不运转，此时应该检查蓄电池。

Phenomenon 1: if the horn is hoarse and the engine does not run, check the battery at this time.

当普通蓄电池极板露出来或是免维护蓄电池观察孔的颜色不是绿色时，就可以断定是蓄电池电力不足造成的发动机无法启动。遇上普通蓄电池电力不足时，补充蒸馏水，也可用纯净水应急。如果是免维护电池电力不足，只能用跨接的方法请其他车辆上的蓄电池帮忙了。此时一定要注意随车携带发动机的电缆线，在借用其他车辆蓄电池电量时，电池的正极连正极，负极连负极。注意被借方车辆发动机一定要先启动。

When the electrode plate of ordinary battery is exposed or the color of the observation hole of maintenance free battery is not green, it can be concluded that the engine cannot be started due to insufficient battery power. When the power of ordinary storage battery is insufficient, distilled water or purified water can be used for emergency. If the maintenance free battery has insufficient power, you can only use the jumper method to ask the battery on other vehicles for help. At this time, be sure to pay attention to the cable of the engine with the vehicle. When borrowing the battery power of other vehicles, the positive pole of the battery is connected to the positive pole and the negative pole is connected to the negative pole. Note that the engine of the borrowed vehicle must be started first.

现象2：喇叭及点亮大灯都无异常，但汽车会发出“哞呀、哞呀”的声音。如果用钳子夹住接头，轻轻向左右转动一下，接头处发出“咕吱、咕吱”的移动声音，则可进一步断定为接头接触不良。此时可以选择用砂纸清理接头圆柱。当没有砂纸时，可以用钳子夹住左右轻轻转动来清理圆柱。

Phenomenon 2: the horn and headlights are normal, but the car will make a sound of "moo, moo". If the joint is clamped with pliers and turned slightly to the left and right, and the moving sound of "creak, creak" is sent out at the joint, it can be further determined that the joint is in poor contact. At this time, you can choose to clean the joint cylinder with sandpaper. When there is no sandpaper, you can clamp it with pliers and rotate it gently to clean the cylinder.

现象3：喇叭良好，而发动机不运转，可以考虑发动机是否通电。如果发动机本身出现故障，如电磁开关失效等，就必须采用拆下发动机，更换零部件的措施了。

Phenomenon 3: if the horn is good and the engine is not running, consider whether the engine is powered on. If the engine itself fails, such as electromagnetic switch failure, the measures of removing the engine and replacing parts must be taken.

小技巧：如果发动机也未卡死，可以考虑利用外力启动的方法，具体操作要点：将排挡杆推到次高挡(如4挡车型，用3挡)，左脚踏离合器踏板，右脚踩在油门踏板，松开制动，打开发动机开关。

Tips: if the engine is not stuck, you can consider the method of starting with external force. Specific operation points: push the gear lever to the next high gear (such as the fourth gear model, use the third gear), step on the clutch pedal with the left foot, step on the accelerator pedal with the right foot, release the brake and turn on the engine switch.