The second position turns on the power to your ignition and your fuel systems. Your ignition switch has 3 different positions, and each position activates a different components within your vehicle. You might be able to restart it a short while later with seemingly no problems. It seems simple and potentially unrelated, but your engine could otherwise be working just fine while you are on the road and yet it stalls out of nowhere. One of the first symptoms of ignition switch failure is actually the stalling of your engine. Ignition Switch Failure or Electrical Problems Thankfully, this is generally an easy fix. If something is blocking the airflow in your engine, it can quickly cause stalling issues. In order to achieve proper combustion your engine actually needs one part gasoline for every 15 parts air. If your engine doesn’t have enough air, it won’t work properly. Air Supply ProblemsĪir is very important for your engine. If your timing belt or chain skips, it can also cause your engine to stall. However, there are situations where there is a problem with the variable valve timing and its causes your engine to face one of the issues mentioned above, typically too little fuel or too much fuel. A timing belt or chain is responsible for synchronizing the various parts of your engine so that everything runs smoothly. You could also have an issue with the engine timing. That makes your spark plugs are too wet, meaning they can’t ignite the fuel in your cylinder so the engine receives no power. If your engine has too much fuel, it floods the engine. If your vehicle has an issue with the fuel pump, that means the engine doesn’t have enough fuel and it won’t be able to produce enough combustion to properly power the vehicle. If there is water or contaminants found in your fuel it can result in a misfire.Ī misfire takes place when your spark plug can’t properly fire and the fuel inside your engine isn’t able to burn. If you have bad fuel in your tank, your combustion process in the engine won’t work efficiently. Problems in the Fuel SystemĪ problem with the fuel quality, your fuel supply, or your fuel injector could contribute to a fuel system problem resulting in your car stalling. Our team of professionals can help properly diagnose the problem, hopefully before your vehicle ever actually stalls on you. It is important to understand that the most effective way to determine the issue and rectify it is to bring your vehicle in as soon as you notice something is wrong. There are a handful of reasons why your engine could stall even though everything else seems to be running just fine. In some cases, it can even be dangerous, as it can happen in the middle of a crowded road, leaving you no way to get off the highway safely. There isn’t much that is more disturbing while driving your BMW than the engine suddenly stalling out while you’re driving. That trust means that when your engine stalls, it can be incredibly overwhelming. You might notice small annoyances like the air conditioner not working properly or the volume control being a bit finicky, but otherwise you trust that every time you turn your car on it will start and every time you turn your car off it’ll be ready to drive again when you are. Every time you get into your car, you trust that your vehicle will function properly without any failures.