What are the reasons for an engine not starting?

[AlinaFitz]

There are several reasons why an engine may not start, including ignition system failure, steering wheel lock, and insufficient fuel. The specific reasons are as follows: Ignition system failure: The car's ignition system mainly consists of spark plugs and ignition coils. If spark plugs are not replaced for a long time, the electrode gap may widen, and carbon deposits may form on the electrodes, both of which can affect the spark plug's ignition performance, leading to the engine's failure to start. Steering wheel lock: Many drivers turn off the engine after parking but fail to straighten the steering wheel, which can easily result in the steering wheel being locked. The consequence is that the key cannot be turned after insertion, making it impossible to start the car. Insufficient fuel: It is necessary to check the fuel gauge to confirm whether the fuel tank is empty. In this case, simply refueling the car will solve the problem.