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, at minimum you’ve already had that fear. So when you listen to an alternator noise on GMC Savana, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to write this post to support you find the sources of alternator sounds. In this article, you will first see the role and operation of the alternator in your GMC Savana and then what the causes and solutions to alternator noise on GMC Savana may be.
Role and alternator operation GMC Savana
Alternator role
Your alternator is an fundamental part of your GMC Savana. Indeed, its task is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of charging the battery once the vehicle is in motion, to provide power to the vehicle 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 functions on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while spinning creates electricity. It is the engine itself that will give the energy needed by the alternator to create the energy, via the accessory belt or alternator belt. When your GMC Savana engine stops, the battery takes over to give the vehicle with energy.
What are the several alternator noises or sounds on my GMC Savana and what are the causes?
I notice a knocking noise from the alternator of my GMC Savana
One of the typical noises of a tired alternator on GMC Savana is a knocking noise. This alternator sound on GMC Savana will most of the time happen when your engine is idling, it can be associated with voltage drops that could disrupt the normal operation of electrical components such as headlights for example. In most cases, it is a of both bearings of the alternator that is faulty, to examine it, use a multimeter on the terminals of your vehicle 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 GMC Savana is tired and you should think about changing the bearing if it is the only reason otherwise the complete part.
I listen to a grinding noise coming from the alternator of my GMC Savana
If you are in the situation where the alternator of your GMC Savana generates grinding sounds, in this circumstance you will have to check it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , in most cases, we generally notice by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this circumstance, we recommend that you read this article to find all the necessary information to solve an accessory belt noise on GMC Savana.
I listen to a loud noise from the alternator of my GMC Savana
Listening a loud noise from the alternator of your GMC Savana is quite common, in fact, it emits an audible sound when producing the electrical pulses it generates. It is up to you to examine 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 recommend that you read this article to find other ways to solve problem of noises from front end on GMC Savana.
