Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If that didn’t happen to you, at minimum you’ve already had that fear. So when you discover an alternator noise on Lexus RX, you can already imagine yourself breaking down, stuck waiting for 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 see the role and functions of the alternator in your Lexus RX and then what the causes and solutions to alternator noise on Lexus RX may be.
Role and alternator operation Lexus RX
Alternator role
Your alternator is an fundamental component of your Lexus RX. Indeed, its objective is to provide 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 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 principle of copper coil wound around a magnet . This coil while spinning produces electricity. It is the engine motor itself that will furnish the energy needed by the alternator to produce the energy, via the accessory belt or alternator belt. When your Lexus RX engine stops, the battery takes over to furnish the car with energy.
What are the several alternator noises or sounds on my Lexus RX and what are the causes?
I find out a knocking noise caused by the alternator of my Lexus RX
One of the characteristic noises of a tired alternator on Lexus RX is a knocking noise. This alternator sound on Lexus RX will most of the time show up when your engine is idling, it can be linked to voltage drops that could affect the normal operation of electrical parts 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 car 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 RX is tired and you should consider changing the bearing if it is the only cause otherwise the entire part.
I discover a grinding noise coming from the alternator of my Lexus RX
If you are in the situation where the alternator of your Lexus RX 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 , in general, 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 read this document to find all the necessary details to solve an accessory belt noise on Lexus RX.
I discover a loud noise from the alternator of my Lexus RX
Experiencing a loud noise from the alternator of your Lexus RX is quite typical, 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 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 recommend that you go to this document to find other ways to solve problem of noises from front end on Lexus RX.
