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 , at minimum you’ve already had that apprehension. So when you listen to an alternator noise on Nissan Micra 2, you can already see yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to produce this article to support you locate the sources of alternator sounds. In this article, you will first learn the role and operation of the alternator in your Nissan Micra 2 and then what the causes and solutions to alternator noise on Nissan Micra 2 may be.
Role and alternator operation Nissan Micra 2
Alternator role
Your alternator is an fundamental component of your Nissan Micra 2. Indeed, its mission is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of charging the battery once the car is in motion, to provide power to the car in motion and to allow you to always have a enough energy reserve to be able to restart the next time.
Alternator functioning
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The alternator functions on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while spinning produces electricity. It is the engine motor itself that will provide the energy requested by the alternator to produce the energy, via the accessory belt or alternator belt. When your Nissan Micra 2 engine stops, the battery takes over to provide the car with energy.
What are the different alternator noises or sounds on my Nissan Micra 2 and what are the causes?
I perceive a knocking noise from the alternator of my Nissan Micra 2
One of the typical noises of a tired alternator on Nissan Micra 2 is a knocking noise. This alternator sound on Nissan Micra 2 will generally happen when your engine is idling, it can be connected to voltage drops that could disturb the normal operation of electrical components such as headlights for example. In general, it is a of both bearings of the alternator that is defective, to examine it, use a multimeter on the terminals of your car with the engine running and you must get 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 Nissan Micra 2 is tired and you should think about replacing the bearing if it is the only cause otherwise the whole part.
I listen to a grinding noise coming from the alternator of my Nissan Micra 2
If you are in the situation where the alternator of your Nissan Micra 2 generates 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 usually, we generally notice 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 encourage that you read this content to find all the necessary details to solve an accessory belt noise on Nissan Micra 2.
I listen to a loud noise from the alternator of my Nissan Micra 2
Experiencing a loud noise from the alternator of your Nissan Micra 2 is quite common, in fact, it emits an audible sound when creating the electrical pulses it generates. It is up to you to examine 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 encourage that you take a look at this content to find other ways to solve problem of noises from front end on Nissan Micra 2.
