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Top 5 Reasons Car Engine Stops Suddenly

ByTsukasa Azuma-January 04, 2021

It is a known fact that the less you care for your car, the more troubles it is going to create for you. One of the major dreaded car troubles is the sudden stopping of the engine, and it can make car stops while driving. It’s not like the typical movie scene, where only the old cars give up in the middle of nowhere. Relatively newer cars can also fall prey to this problem. Why? Because there are certain serious reasons car engine stops suddenly. And, here are the top 05 of these.

Top 5 Reasons Car Engine Stops Suddenly

Before you head to find out the reasons why car engine stops suddenly, you must realize that this sudden stopping of the engine can be highly dangerous. If your car engine cuts out abruptly, you are likely to lose control. Not only can it be dangerous but also fatal if you are driving at very high speed.

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1. Overheated Engine

This is one of the most common reasons why a car suddenly stops. As the fuel burns, the chemical energy is changed into heat energy. The engine further changes it into mechanical energy that moves the car parts. In cases when this heat in the engine bay goes beyond the normal range, it starts melting the piston. As it sounds, it is not a good sign.

Some Reasons Car Engine Stops Suddenly (photo source: Shutterstock)

Eventually, if the temperature keeps rising, it is bound to stop the engine. In fact there are several reasons that contribute to engine overheating.

2. Choked Catalytic Converter

The catalytic converter is a vital part of the exhaust system. It plays a major role in keeping the exhaust clear. If there are more impurities in the fuel than the converter can handle, it gets choked and stops working, so ‘car suddenly stops‘ situation appears.

The result is that the exhaust backs up in the pipe and the engine has to work harder. Ultimately, the engine gets overworked, resulting in stalling. This kind of stalling is usually preceded by vibration and rattling in the engine.

3. Inadequate Transmission Fluid

Inadequate level of transmission fluid can also be one of the reasons car engine stops suddenly. This level differs from make to make and model to model. So, refer to your car’s owner’s manual. Follow the maintenance tips according to the manual to keep the fluid level right.

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4. Electrical Issues in Ignition/Computer

Know some reasons car engine stops suddenly (photo source: Gudella)

There could also be electrical issues with the ignition or the computer. Signals could be getting crossed, causing the engine to shut down. In such cases, you are likely to see the “check engine” light. If you still continue driving despite the light, it will create chances for car suddenly stops. This could more so with the case with sophisticated modern cars and hybrid cars.

5. Loose Engine Bolts

Though it doesn’t happen that often, but it does happen sometimes. Improper maintenance of the engine can lead to many a problem. If the bolts of the engine are loosely screwed, the engine will start vibrating and ultimately start malfunctioning. The wear and tear that the engine goes through while driving, can cause the loose screws to ultimately come off. The engine is sure to self-destruct and stop in that case.

The key to avoid these troubles is to be regular in service and to maintain your car like it should be. It is also important that you drive your car in a good manner. If you feel satisfy with this kind of maintenance tips that we brought to, take a deeper look to our website and follow us for more daily updated articles. Any knowledge that related to cars industry will be often performed.

Tsukasa Azuma is an awesome car blogger of Car From Japan. He owns a car repair shop at downtown Osaka, and he put all that experience to good use in his sharing posts. Tsukasa’s blog is one of the best resources for information about keeping your favorite imported car running smoothly. Moreover, because of being passionate to learn about the recent happenings in auto industry, he doesn’t only provide great car maintenance tips, he also always updates latest trends in among car brands and share them in his own interesting viewpoint.


Sumesh19:42 July 21, 2018

My vehicle BMW x5 suddenly stopped with a mis firing . Vehicle was at stationary idling stage. Now this vehicle is not starting.Please help to ressolve this issue