

If it turns out that your spark plugs are fine, but the symptoms go in hand with bad spark plugs, the problem may lie with the ignition coils which produce many similar symptoms. Having the car stall while driving due to bad spark plugs can happen, but usually, there are a few signs that spark plugs are going bad, which include rough and vibrating acceleration, rough idle, and more.īad spark plugs do not necessarily stop working at once, but they may work with intermittent efficiency. If it has been a long time since the spark plugs were changed, it would be advisable to inspect them. Sometimes, it may happen that they do not work properly which can cause your car to stall. Spark plugs are very important for a gasoline-driven internal combustion engine.

It may happen that it only cranks but does not start, or that it shuts off right after starting it. If it turns out that the stalling is due to an alternator failure, the car will probably not be able to start again. Some signs of a bad alternator include flickering lights, whining noises, and a warning light illuminating the dashboard. This will also drain your battery as nothing is charging it, and luckily there are many signs and symptoms that occur when the alternator starts getting bad. The alternator of a car powers almost all electrical systems in the car while also charging the car battery.Ī faulty alternator will not be able to provide enough power to the electrical components of the engine, which may lead to the car stalling while driving.
