In this case, you need to take your car to an auto repair shop. Over time, the sensors become faulty and transmit incorrect information to the ECU. The ECU controls engine components through a series of sensors. Since a vehicle needs fuel to move, any malfunction in the ECU will cause the vehicle to stop after starting. The ECU is a car computer system that controls various engine functions, including the fuel injection system. Bad Engine Control Unit (ECU) A faulty sensor in ECU can transmit incorrect information This can make the mixture too lean which will also cause the car to start and then die after a few seconds. If the EGR valve is stuck open, it may be getting too much air into the intake manifold. The EGR valve controls the exhaust that needs to be recycled back into the engine. Faulty Exhaust Gas Recirculation (EGR) Valve For maintenance, check out the symptoms of a bad fuel filter. This can cause the injectors to run out of fuel, making the car difficult to start. The fuel filter removes unwanted elements and becomes clogged over time. Clogged Fuel Filter Keep your car fuel filter clean for a better performanceĪ clogged fuel filter can make it very difficult to start a vehicle. Also, keep a check on the symptoms of a bad fuel injector before it completely stops working. If they don’t click, one of them may be faulty. You can try to feel the fuel injectors with your hand while cranking to see if they click. If a fuel injector fails, it can cause the engine to run with fewer cylinders and also lower fuel pressure if one is stuck open. The job of the fuel injectors is to regulate so that the exact amount of fuel enters the combustion chamber. Faulty Fuel Injectorįuel is injected under high pressure into the combustion chamber using fuel injectors. If it’s still on, there may be a problem with your car key. If not, then lock your car again and unlock it to start again. The key symbol on your car dashboard warning light should turn off a few seconds after you turn on the ignition. This will start the car for a few seconds but not for a longer period. When the anti-theft system is activated, the car doesn’t send power to the fuel pump, which creates fuel pressure in the fuel rail. Anti-Theft Alarm SystemĪnother common reason cars start then die after a few minutes can be a problem with a theft alarm system. This is why it is important to know the symptoms of a bad spark plug. If the spark plugs are faulty, the ignition will fail and the car will stop moving. This may require you to crank the engine long before it starts. As the electrode wears, the voltage required to create the spark and ignite the fuel increases. Dirty or worn spark plugs are one of the most common reasons for a vehicle that is hard to start. Spark plugs create the spark that allows the vehicle to burn fuel. Faulty Spark Plugs A bad spark plug can cause trouble while starting a vehicle You can also use some fuel saving devices to improve fuel economy. You can connect a fuel pressure gauge to identify the pressure. The lack of fuel is however quite easy to locate. However, there is no fuel pressure to keep the engine running. This often happens because there is a small amount of fuel in the fuel rail, which helps to start the engine. The most common reason your car starts and then dies is because of a lack of fuel in the engine. Keep a car maintenance checklist to avoid getting stuck while driving. Have assistance or the workshop check whether or not the battery has power and, if not, replacing it will resolve the fault. It may happen when the battery has enough power to start and an alternator generates a minimum of electricity to keep the car running.Ī battery change might fix the problem. However, if your car starts then dies immediately, then the fault could be a lack of charging or damaged battery. The car needs electricity from the battery to start. Faulty exhaust gas recirculation (EGR) valveįaulty Battery A faulty battery could be a reason why your car starts and dies after a few secondĪ classic reason why your car starts for a second then dies is battery depletion.There could be several reasons why your car starts and then stops immediately. In this guide, we will discuss some of the common reasons why your car starts for a second then dies immediately. However, it is also important to make sure the underlying cause is identified and resolved for a permanent solution. In most cases, the problem isn’t hard to fix and you can get the engine running with little effort. Anything from the electrical system to the fuel system can cause this problem. If your car engine dies a few seconds after it starts, it can be due to a number of different reasons.
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