1. Battery/Electrical Issue
- Weak battery: If the battery is not able to provide enough power for the engine to keep running, it may start and then shut off immediately.
- Malfunctioning alternator or voltage regulator: If the alternator or voltage regulator are not working properly, they may not be able to provide the necessary power to keep the engine running.
2. Fuel Supply Issue
- Fuel pump failure: If the fuel pump is not working, it cannot supply fuel to the engine, which will cause the engine to stall.
- Clogged fuel filter: A clogged fuel filter can prevent a sufficient amount of fuel from reaching the engine, causing it to start and then immediately stop.
- Malfunctioning fuel pressure regulator: A faulty fuel pressure regulator may not provide adequate pressure to the fuel system, causing the engine to shut off.
3. Ignition System Issue
- Faulty spark plugs or ignition coils: If the spark plugs or ignition coils are not working properly, they may not create a strong enough spark to ignite the air-fuel mixture, causing the engine to start and then cut off.
4. Air Intake Issue
- Clogged air filter: A clogged air filter can restrict airflow into the engine, causing it to run rough and possibly shut off.
5. Sensors/Engine Management System Issue
- Malfunctioning sensors: Sensors provide critical information to the engine management system about various parameters, such as air intake, fuel injection, and engine temperature. If these sensors are faulty, they can provide incorrect information, leading to engine problems, including starting and shutting off immediately.
6. Computer/ECU Issue
- ECU malfunction: The Electronic Control Unit (ECU) is responsible for managing various engine functions and controls. A malfunctioning ECU can disrupt engine processes and cause the car to start and stall.
7. Mechanical/Internal Issue
- Mechanical issues (such as low compression or timing problems) can cause the engine to start and then quickly stop.
If you are unable to identify and fix the issue yourself, it is recommended to have the car diagnosed by a qualified mechanic.
