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 perceive an alternator noise on Lexus NX, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to write this content to support you locate the origins of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Lexus NX and then what the causes and solutions to alternator noise on Lexus NX may be.
Role and alternator operation Lexus NX
Alternator role
Your alternator is an fundamental component of your Lexus NX. In fact, its mission is to give 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 allow you to always have a enough 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 concept of copper coil wound around a magnet . This coil while rotating produces electricity. It is the engine motor itself that will provide the energy required by the alternator to create the energy, via the accessory belt or alternator belt. When your Lexus NX engine stops, the battery takes over to provide the vehicle with energy.
What are the several alternator noises or sounds on my Lexus NX and what are the causes?
I hear a knocking noise from the alternator of my Lexus NX
One of the typical noises of a tired alternator on Lexus NX is a knocking noise. This alternator sound on Lexus NX will generally show up when your engine is idling, it can be associated with voltage drops that could affect the normal operation of electrical elements such as headlights for example. In general, it is a of both bearings of the alternator that is malfunctioning, to verify it, use a multimeter on the terminals of your vehicle with the engine running and you must obtain 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 Lexus NX is tired and you should think about swapping the bearing if it is the only cause otherwise the whole part.
I perceive a grinding noise coming from the alternator of my Lexus NX
If you are in the situation where the alternator of your Lexus NX generates grinding sounds, in this circumstance you will have to look into it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, but in general, we often notice 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 suggest that you consult this article to find all the necessary details to solve an accessory belt noise on Lexus NX.
I perceive a loud noise from the alternator of my Lexus NX
Experiencing a loud noise from the alternator of your Lexus NX is quite normal, in fact, it emits 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 appear, 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 suggest that you take a look at this article to find other ways to solve problem of noises from front end on Lexus NX.
