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, perhaps you’ve already had that fear. So when you listen to an alternator noise on Mazda CX 3, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this content to help you locate the origins of alternator sounds. In this article, you will first see the role and functions of the alternator in your Mazda CX 3 and then what the causes and solutions to alternator noise on Mazda CX 3 may be.alternator-noise-mazda-cx-3

Role and alternator operation Mazda CX 3

Alternator role

Your alternator is an fundamental part of your Mazda CX 3. In fact, its task is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of recharging the battery once the car is in motion, to provide power to the car in motion and to let you to always have a enough energy source to be able to restart the next time.

Alternator functioning

The alternator works on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while spinning produces electricity. It is the engine motor itself that will give the energy requested by the alternator to create the energy, via the accessory belt or alternator belt. When your Mazda CX 3 engine stops, the battery takes over to give the car with energy.

What are the distinctive alternator noises or sounds on my Mazda CX 3 and what are the causes?

I hear a knocking noise originating from the alternator of my Mazda CX 3

One of the typical noises of a tired alternator on Mazda CX 3 is a knocking noise. This alternator sound on Mazda CX 3 will generally appear 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 most cases, it is a of both bearings of the alternator that is faulty, to check it, use a multimeter on the terminals of your car 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 Mazda CX 3 is tired and you should think about changing the bearing if it is the only cause otherwise the complete part.

I listen to a grinding noise coming from the alternator of my Mazda CX 3

If you are in the situation where the alternator of your Mazda CX 3 generates grinding sounds, in this circumstance you will have to look at it more seriously. This indicator can testify as for the knocking sound of a tired bearing, but in general, we generally see by looking more strongly that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this circumstance, we advise that you consult this content to find all the necessary details to solve an accessory belt noise on Mazda CX 3.

I listen to a loud noise from the alternator of my Mazda CX 3

Listening a loud noise from the alternator of your Mazda CX 3 is quite common, in fact, it emits an audible sound when creating the electrical pulses it generates. It is up to you to check 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 advise that you look into this content to find other ways to solve problem of noises from front end on Mazda CX 3.