Possible causes of electrical problems in your car


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More than a few issues in a vehicle is caused by the automotive electrical failure.

Speaking of the electricity, the source of the problems is quite obvious, it either comes from the battery or the alternator. Luckily, these problems can be classified into some categories with similar characteristics and remedies.

1. Dead battery 

First, let’s investigate the battery, the source of electricity of any kind of vehicle. It generates electricity, so it should be expected to be the culprit whenever there is an automotive electrical failure. Often enough, the problem is simply a dead battery, thí occurs when the battery is depleted. This issue is usually caused by some malfunctioned parts of the vehicle, or it is due to the careless owner who accidentally leaves the light or the audio on for a long time without using the vehicle. But don’t worry, a dead battery can be revived, either by a jump-start or a recharge. However, it doesn’t work every time, a battery has its own lifecycle, so at the end of the cycle, it should be let go peacefully rather than being recharged over and over again.

The alternator of a car

The component that keeps the battery alive - the alternator

Video: Easily Identify Vehicle Battery Draining Problems(Parasitic)

2. Failed alternator

Another cause of automotive electrical failures, while less common than the battery problems, it is still something worth being inspected: it is the alternator. Unlike the converter, alternator transforms mechanical energy into alternating current electricity. Its major function is to recharge the battery while the car is running. If the alternator runs into problems, the electricity in the battery will run out rapidly, resulting in the power loss of the vehicle. In some cases, the problem lies in the belt that is attached to the alternator, if it degenerates or even cracks, it can undermine the recharging ability of the alternator, leading to the same consequence.

3. Broken electrical wire/blown fuse

If the two components above are still in good shapes, it’s time to check the electrical wire and the fuse. Electrical wires are the veins of the car, if it’s broken, electricity cannot circulate through the system and the car will end up in failure. Fuses are also the indispensable components of the wiring system to prevent it from overloading. Make sure to check them often enough, because replacing a broken fuse is much more economical than replacing other pricey main parts of the car.

A car's battery

Jump-starting is a common solution that most people will think of first when there is an electrical failure

4. Bad spark plugs and spark plug wires

The spark plugs and spark plug wires are also the causes for automotive electrical failure. You can tell when do they stop working by looking at some visible clues, such as rough drives while in idle, slow acceleration, halting, or gas consumption going up suspiciously. Broken spark plugs are no complicated problems, a simple tune-up will do the job.

The last component we want to point out is the solenoid. Generally speaking, it is used to give power to the starter and automatic door locks. A worn solenoid is tricky to identify, for it is easily be mistaken with a depleted starter or a dead battery since they lead to the same consequence, which is the engine not being able to turn over when starting.

>>> More Handy maintenance tips on Naijauto.com waiting for you discover!​

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