Updated at: 27-07-2023 - By: micdot

For whatever reason, your car shuts down while you’re driving. What if you’re about to come to a complete halt? How to fix it: Here’s why and how to do it. This author has been carefully screened to ensure that he or she is qualified to write about the subject at hand. On our website, you may find out more. Being forced to stop in the middle of the road is a terrifying and potentially life-threatening situation. Several systems and sensors are required to ensure proper operation of the engine’s many components.

Most of the time, a problem with one of these components or sensors will not result in the vehicle shutting down while it is in motion, but it does happen occasionally.Among the many possible causes are a lack of fuel, issues with the fuel pump, camshaft issues, and many more.A look at the most common causes and how to fix them will be covered in this guide, which you can access here.

Let’s get to it, shall we?

List of Chapters

Why Does My Car Shut Off All Of A Sudden?

6 Reasons Why a Car Shuts Off While Driving

A car’s shut-down can be caused by a variety of factors, and the vehicle will respond accordingly.It is possible to restart a stalled car by putting the ignition switch back in place, for example. On the other hand, starting a car without fuel is next to impossible.In the following sections, you’ll learn about a variety of possible causes for a vehicle to crash while you’re driving. There is a solution for every problem, but the intricacy of those answers varies.

The lack of power steering and braking in an internal combustion engine car makes it more difficult to drive.Towards the end of the piece, we’ll talk about this further. If your car abruptly shuts down, make sure to read this entire article.Let’s get this party started!

Out Of Fuel

Fuel is one of the most common causes of a car’s engine to fail while driving. If this happens after a motorist neglects to fill up the tank, it may be because of a fuel leak. Alternatively, the fuel gauge could be malfunctioning, resulting in erroneous fuel consumption numbers. It doesn’t matter where you are; if your automobile has no fuel, it won’t run and will shut down. When only 10% of the vehicle’s fuel capacity is left, the fuel light will illuminate. Filling up your tank is the first warning that you need to do so. Only a few seconds before you notice that stepping on the gas pedal no longer has any effect, the automobile will start sputtering and you’ll know something’s wrong. When the car begins to slow down, you must act rapidly to bring it to a safe stopping point. Once you’ve reached a secure location, all that’s left to do is refuel your vehicle. Get enough gas to get to the nearest gas station and refill the tank.

Bad Ignition Switch

The ignition switch is also a probable culprit. In order to turn on the car’s electrical systems and provide power to the ignition system, the key must be turned in order to turn on the ignition switch. In the absence of an ignition system, the engine will not be able to start, and it will stall. In some cases, all it takes to get the automobile going again is turning the key. Stopping somewhere safe and taking care of the issue are your best options if this is the case.

Faulty Alternator

The alternator is the heart of a car’s electrical system. This includes the ignition coil and, as a result, the spark plugs in the engine. An alternator problem may usually be diagnosed before it causes the engine to stall out while driving. Lights dimming and flickering are two of the most common symptoms. If your alternator stops working, your automobile will not start, and you will need help moving it.

Bad Fuel Pump/Filter

Fuel is required to power an internal combustion engine in a car. Even if there is still fuel in the tank, not enough of it is being burned. The problem may be caused by a faulty fuel pump or a faulty fuel filter. The fuel filter’s primary function is to keep dirt and other contaminants from entering the combustion chamber and the fuel lines. It is necessary to change the filter on a regular basis, just like with any other sort of filter. A clogged filter will prevent any fuel from passing through if it is not replaced. The engine will shut down if no fuel can be transferred from the fuel tank to the combustion chamber.

Fuel is pumped out of the tank by a fuel pump in the same way. Fuel cannot be pushed into the combustion chamber without a pump, and without one, the engine will shut down. A defective fuel pump or filter, like a bad alternator, is almost always detectable before it causes the engine to shut down. Replacement of a specific part is required in both circumstances.

Faulty Crankshaft Position Sensor

CRANK Position Sensor Test - failing CKp sensor - CKp test - YouTube

Piston motion is dependent on the crankshaft, which transmits rotational energy to the wheels. A crankshaft position sensor communicates with the ECU to keep the crankshaft in sync with all other parts and activities. It is inevitable that misfires will occur if the process becomes out of sync. The engine may stall in extreme instances.

Unless the sensor breaks suddenly, you will not be able to attain your normal speed with a defective crankshaft position sensor. As a result, when you first start your automobile or are about to go, the symptoms of a bad crankshaft position sensor will be most obvious. Any worn-out or malfunctioning crankshaft position sensor needs to be replaced immediately. This means that if you have a faulty crankshaft position sensor, you should not attempt to drive.

What Should You Do If The Car Shuts Off While Driving?

You must know how to respond if your car’s engine suddenly shuts down in order to safeguard yourself and other drivers on the road. There is no power steering or braking when the engine is out, thus the automobile will behave differently. Maintaining a cool demeanor is the most crucial thing. Even when you’re not in the middle of a crisis, it’s easy to tell yourself to calm down. As long as it is safe to do so, steer the car to the side of the road. Switch on your danger lights if the electronics are still functional.

There will be more resistance in the steering and the brakes, but they will still work. Using the emergency brake may be necessary if you are having difficulty braking. To be safe, though, exercise extreme caution. It is possible to lose control of your vehicle and crash if you use the emergency brake carelessly. Instead, slowly and steadily raise the emergency brake until the vehicle comes to a halt. The safest course of action is to exit your vehicle and wait for aid to arrive in a more secure location. YouTube channel Conquer Driving offers an excellent video on e-braking that covers both automatic and manual transmissions, as well as traditional and electronic emergency brakes.


Engines might suddenly stop for a variety of causes. A defective crankshaft sensor or alternator are a few examples. It’s critical to remain calm and find a safe place to pull over to the side of the road if something happens to you. It will be far more difficult to turn the wheel in a car that doesn’t have a working engine. Brakes are also affected by this. Fortunately, the occurrence of an engine failure while driving is extremely unusual. 

It’s common for several indications and symptoms to indicate a problem with a specific portion of the vehicle. Your engine will not restart unless you replace the faulty item that caused it to do so. Many of these concerns can be avoided by following the manufacturer’s instructions for basic car maintenance.

Your Car Shuts Off While You're Driving - What Do You Do Now? -