Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If it never happened to you , certainly you’ve already had that apprehension. So when you hear an alternator noise on saab 9 3, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this post to help you locate the sources of alternator sounds. In this article, you will first discover the role and functions of the alternator in your saab 9 3 and then what the causes and solutions to alternator noise on saab 9 3 may be.
Role and alternator operation saab 9 3
Alternator role
Your alternator is an important part of your saab 9 3. Indeed, its objective is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of recharging the battery once the automobile is in motion, to provide power to the automobile 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 principle of copper coil wound around a magnet . This coil while rotating creates electricity. It is the engine itself that will provide the energy requested by the alternator to create the energy, via the accessory belt or alternator belt. When your saab 9 3 engine stops, the battery takes over to provide the automobile with energy.
What are the different alternator noises or sounds on my saab 9 3 and what are the causes?
I listen to a knocking noise caused by the alternator of my saab 9 3
One of the typical noises of a tired alternator on saab 9 3 is a knocking noise. This alternator sound on saab 9 3 will most of the time show up when your engine is idling, it can be connected to voltage drops that could affect 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 defective, to verify it, use a multimeter on the terminals of your automobile with the engine running and you must look for a value between 12 and 14.7 volts, which means that your alternator is recharging your battery well. If the value is lower, the alternator of your saab 9 3 is tired and you should consider changing the bearing if it is the only reason otherwise the complete part.
I hear a grinding noise coming from the alternator of my saab 9 3
If you are in the case where the alternator of your saab 9 3 generates grinding sounds, in this circumstance you will have to look at 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 consult this content to find all the necessary details to solve an accessory belt noise on saab 9 3.
I hear a loud noise from the alternator of my saab 9 3
Hearing a loud noise from the alternator of your saab 9 3 is quite typical, in fact, it produces an audible sound when producing the electrical pulses it generates. It is up to you to verify 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 recommend that you read this content to find other ways to solve problem of noises from front end on saab 9 3.
