Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If it never happened to you , certainly you’ve already had that fear. So when you find out an alternator noise on Opel Agila, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this post to support you find the sources of alternator sounds. In this article, you will first learn the role and functions of the alternator in your Opel Agila and then what the causes and solutions to alternator noise on Opel Agila may be.
Role and alternator operation Opel Agila
Alternator role
Your alternator is an vital part of your Opel Agila. In fact, its goal is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of charging the battery once the car is in motion, to provide power to the car in motion and to let you to always have a enough energy reserve to be able to restart the next time.
Alternator functioning
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The alternator works on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while rotating produces electricity. It is the engine motor itself that will give the energy required by the alternator to produce the energy, via the accessory belt or alternator belt. When your Opel Agila engine stops, the battery takes over to give the car with energy.
What are the different alternator noises or sounds on my Opel Agila and what are the causes?
I notice a knocking noise originating from the alternator of my Opel Agila
One of the typical noises of a tired alternator on Opel Agila is a knocking noise. This alternator sound on Opel Agila will generally show up when your engine is idling, it can be linked to voltage drops that could disturb the normal operation of electrical parts such as headlights for example. Most often, it is a of both bearings of the alternator that is malfunctioning, to check it, use a multimeter on the terminals of your car with the engine running and you must obtain a value between 12 and 14.7 volts, which means that your alternator is charging your battery well. If the value is lower, the alternator of your Opel Agila is tired and you should think about replacing the bearing if it is the only cause otherwise the entire part.
I find out a grinding noise coming from the alternator of my Opel Agila
If you are in the case where the alternator of your Opel Agila causes grinding sounds, in this case you will have to look into it more seriously. This symptom can testify as for the knocking sound of a tired bearing, but in most cases, we often see by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this case, we advise that you consult this content to find all the necessary information to solve an accessory belt noise on Opel Agila.
I find out a loud noise from the alternator of my Opel Agila
Experiencing a loud noise from the alternator of your Opel Agila is quite regular, in fact, it produces an audible sound when producing the electrical pulses it generates. It is up to you to check that the battery indicator light on your dashboard does not show up, and that you do not have a voltage drop when your engine is running (headlight or dashboard light that jumps for example. If this noise is too loud, we advise that you take a look at this content to find other ways to solve problem of noises from front end on Opel Agila.
