- 10/10/2024
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The main functions of a car battery
Every car contains a battery called a 12-volt battery, and this battery performs several basic and important functions, which is the first to start the engine by supplying it with the energy stored in it until the ignition and combustion process is complete, and the battery also works to operate the car's electronic systems such as radio, windows, lights, and others.
The battery is recharged by the alternator, which is an electrical coil that derives its motion from the engine, and when the engine is running, the alternator will work with it through the car's main belt, generating energy and transferring it to the battery and to the electronic parts of the car as well.
Since the battery is responsible for starting the engine, any malfunction or damage to it or if it is not filled with energy in the required amount, you will not be able to start the engine for sure, but there are cases where the car is equipped with a new battery, but the engine does not work, and in this article, you will learn about these reasons.
When buying a used car, it is necessary to check the battery and other important parts of the car, and Motorgy makes this task easy for you because it offers you used cars for sale in Kuwait inspected by experts starting from the battery and engine to the paint, interior, and electronic parts, so you can buy your dream car with peace of mind.
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The engine won't start and the battery is new
There are several reasons that lead to the inability to start the engine even though the battery is new, and they are:
The battery is dead
If you accidentally leave the interior or exterior lights in your car on during the night or during a long break during parking, the battery will run out of power completely, and as a result, the battery will not have enough energy to start the engine, and here you must recharge it through an external sharing cable with another car to provide your battery with enough energy to start the engine, and then to be recharged through the generator.
Battery is not suitable
When buying a new battery, you must make sure that it is suitable for your car, as each car has specific battery specifications, size and voltage for it and the engine it is equipped with, so you must check the owner's manual or the dealership to know the type and voltage of the battery suitable for your car; because installing an unsuitable battery will not enable you to start the engine, or you may have difficulty starting it.
The battery is not installed correctly
There is a possibility that your inability to start the engine and the new battery is that the battery has been installed incorrectly, as the poles can be installed incorrectly, i.e. negative instead of positive and vice versa, or that there is looseness in the connections that led to the lack of power to the engine, so make sure that the pole clips are installed correctly, and remember that starting the engine and poles reversed will damage the fuses, connections and several other components in the car and can even damage the car's computer.
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Malfunctioning starter
The starter is the part responsible for rotating the engine quickly to work, and it is one of the most common engine starting issues, as the battery powers the starter, allowing the engine to rotate and start the ignition process, and once the fuel and air mix in the engine and ignite, the engine will work and the generator will start feeding the car's systems with electricity, and if the starter is damaged even if the battery is new, the engine will not work.
Damaged or oxidized battery wires
One of the common issues for losing the ability to start the engine is damaged battery wires or oxidized electrode clips even if the battery is new, as the issue is due to the old battery that may have accumulated enough corrosion or oxidation on the clips that leads to preventing the delivery of power to the engine, if the wires are damaged you can easily replace them with wires suitable for your car, and if they are oxidized you can clean them using a wire brush and hot water.
Burned out fuse or relay
If your car has fuses and power relays for the engine and the power is burned out, the engine will not work, as fuses are designed to burn out in the event of a sudden increase in electrical power, and this prevents damage to the car parts, as well as in damaged relays, as they lose the engine's ability to run if they fail.
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Alternator failure
The alternator is an essential part of the car's charging system, it works to charge the battery using the engine's rotational power and provides the necessary electricity for the various systems in your car, but if something goes wrong with the alternator, the battery will not be charged with enough energy to run the engine, and it will not be able to supply energy to other car systems.
Problems with the fuel and ignition systems
The fuel supply and ignition systems in the car are responsible for pumping fuel to the engine and then igniting it to work, and if one of the components of these systems such as the fuel pump, fuel filter, hoses, spark plugs, injectors and several other parts are damaged, the engine will not work; because it needs a certain amount of fuel and a flame with a certain power to work, and if these factors are not available, it will not work without any doubt.
Engine problems
Sometimes the issue of starting the engine is caused by the engine itself, as the car's engine contains many parts and components, and if one of them is damaged or broken, the engine will not work, especially if these parts are responsible for starting the engine or ensuring that it works after it is started.
