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 , at minimum you’ve already had that apprehension. So when you find out an alternator noise on Ford Fiesta , 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 learn the role and functions of the alternator in your Ford Fiesta and then what the causes and solutions to alternator noise on Ford Fiesta may be.
Role and alternator operation Ford Fiesta
Alternator role
Your alternator is an essential part of your Ford Fiesta . Indeed, its objective is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the goal of recharging 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 principle of copper coil wound around a magnet . This coil while spinning makes electricity. It is the engine itself that will provide the energy required by the alternator to generate the energy, via the accessory belt or alternator belt. When your Ford Fiesta engine stops, the battery takes over to provide the vehicle with energy.
What are the different alternator noises or sounds on my Ford Fiesta and what are the causes?
I perceive a knocking noise from the alternator of my Ford Fiesta
One of the characteristic noises of a tired alternator on Ford Fiesta is a knocking noise. This alternator sound on Ford Fiesta will generally appear when your engine is idling, it can be connected to voltage drops that could disturb 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 check it, use a multimeter on the terminals of your vehicle 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 Ford Fiesta is tired and you should think about changing the bearing if it is the only cause otherwise the entire part.
I find out a grinding noise coming from the alternator of my Ford Fiesta
If you are in the situation where the alternator of your Ford Fiesta produces grinding sounds, in this case you will have to look into it more seriously. This indicator can testify as for the knocking sound of a tired bearing, however , usually, we often notice by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this case, we recommend that you look for advice this article to find all the necessary information to solve an accessory belt noise on Ford Fiesta .
I find out a loud noise from the alternator of my Ford Fiesta
Finding out a loud noise from the alternator of your Ford Fiesta is quite normal, 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 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 look into this article to find other ways to solve problem of noises from front end on Ford Fiesta .
