Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If that didn’t happen to you, perhaps you’ve already had that fear. So when you perceive an alternator noise on Alfa Romeo 147, you can already imagine 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 origins of alternator sounds. In this article, you will first discover the role and operation of the alternator in your Alfa Romeo 147 and then what the causes and solutions to alternator noise on Alfa Romeo 147 may be.
Role and alternator operation Alfa Romeo 147
Alternator role
Your alternator is an essential component of your Alfa Romeo 147. Indeed, its mission 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 automobile is in motion, to provide power to the automobile 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 operates on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while rotating produces electricity. It is the engine itself that will provide the energy requested by the alternator to generate the energy, via the accessory belt or alternator belt. When your Alfa Romeo 147 engine stops, the battery takes over to provide the automobile with energy.
What are the several alternator noises or sounds on my Alfa Romeo 147 and what are the causes?
I notice a knocking noise caused by the alternator of my Alfa Romeo 147
One of the typical noises of a tired alternator on Alfa Romeo 147 is a knocking noise. This alternator sound on Alfa Romeo 147 will most of the time appear when your engine is idling, it can be associated with voltage drops that could disturb the normal operation of electrical parts such as headlights for example. In general, it is a of both bearings of the alternator that is malfunctioning, to check it, use a multimeter on the terminals of your automobile 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 Alfa Romeo 147 is tired and you should consider swapping the bearing if it is the only reason otherwise the complete part.
I perceive a grinding noise coming from the alternator of my Alfa Romeo 147
If you are in the situation where the alternator of your Alfa Romeo 147 causes grinding sounds, in this case you will have to look into it more seriously. This sign can testify as for the knocking sound of a tired bearing, but in most cases, we generally realise by looking more strongly that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we suggest that you read this document to find all the necessary details to solve an accessory belt noise on Alfa Romeo 147.
I perceive a loud noise from the alternator of my Alfa Romeo 147
Listening a loud noise from the alternator of your Alfa Romeo 147 is quite common, 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 appear, 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 suggest that you look into this document to find other ways to solve problem of noises from front end on Alfa Romeo 147.
