Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If that didn’t happen to you, at minimum you’ve already had that apprehension. So when you find out an alternator noise on Subaru Outback, you can already see yourself breaking down, stuck awaiting 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 discover the role and functions of the alternator in your Subaru Outback and then what the causes and solutions to alternator noise on Subaru Outback may be.alternator-noise-subaru-outback

Role and alternator operation Subaru Outback

Alternator role

Your alternator is an vital part of your Subaru Outback. Indeed, its objective 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 sufficient energy source 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 makes electricity. It is the engine motor itself that will give the energy needed by the alternator to generate the energy, via the accessory belt or alternator belt. When your Subaru Outback engine stops, the battery takes over to give the automobile with energy.

What are the several alternator noises or sounds on my Subaru Outback and what are the causes?

I find out a knocking noise coming from the alternator of my Subaru Outback

One of the typical noises of a tired alternator on Subaru Outback is a knocking noise. This alternator sound on Subaru Outback will generally show up when your engine is idling, it can be linked to voltage drops that could disrupt 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 verify it, use a multimeter on the terminals of your automobile 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 Subaru Outback 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 Subaru Outback

If you are in the case where the alternator of your Subaru Outback causes grinding sounds, in this circumstance you will have to look into it more seriously. This symptom can testify as for the knocking sound of a tired bearing, however , usually, we generally realize by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this circumstance, we recommend that you consult this article to find all the necessary details to solve an accessory belt noise on Subaru Outback.

I find out a loud noise from the alternator of my Subaru Outback

Finding out a loud noise from the alternator of your Subaru Outback is quite regular, 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 check out this article to find other ways to solve problem of noises from front end on Subaru Outback.