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 fear. So when you notice an alternator noise on Toyota FJ Cruiser, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this content to support you find the sources of alternator sounds. In this article, you will first see the role and functions of the alternator in your Toyota FJ Cruiser and then what the causes and solutions to alternator noise on Toyota FJ Cruiser may be.
Role and alternator operation Toyota FJ Cruiser
Alternator role
Your alternator is an essential part of your Toyota FJ Cruiser. Indeed, its goal is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task 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
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The alternator operates on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while spinning generates electricity. It is the engine itself that will furnish the energy requested by the alternator to produce the energy, via the accessory belt or alternator belt. When your Toyota FJ Cruiser engine stops, the battery takes over to furnish the car with energy.
What are the several alternator noises or sounds on my Toyota FJ Cruiser and what are the causes?
I find out a knocking noise caused by the alternator of my Toyota FJ Cruiser
One of the typical noises of a tired alternator on Toyota FJ Cruiser is a knocking noise. This alternator sound on Toyota FJ Cruiser will most of the time happen 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 many cases, it is a of both bearings of the alternator that is defective, to check it, use a multimeter on the terminals of your car with the engine running and you must get 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 Toyota FJ Cruiser is tired and you should think about swapping the bearing if it is the only cause otherwise the complete part.
I notice a grinding noise coming from the alternator of my Toyota FJ Cruiser
If you are in the situation where the alternator of your Toyota FJ Cruiser produces grinding sounds, in this circumstance you will have to check it more seriously. This symptom can testify as for the knocking sound of a tired bearing, however , generally, we generally see by looking more meticulously 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 look for advice this content to find all the necessary details to solve an accessory belt noise on Toyota FJ Cruiser.
I notice a loud noise from the alternator of my Toyota FJ Cruiser
Experiencing a loud noise from the alternator of your Toyota FJ Cruiser is quite common, in fact, it produces 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 recommend that you check out this content to find other ways to solve problem of noises from front end on Toyota FJ Cruiser.
