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 apprehension. So when you notice an alternator noise on GMC Yukon, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to produce this content 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 GMC Yukon and then what the causes and solutions to alternator noise on GMC Yukon may be.
Role and alternator operation GMC Yukon
Alternator role
Your alternator is an important part of your GMC Yukon. Indeed, its mission is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of charging the battery once the vehicle is in motion, to provide power to the vehicle in motion and to allow you to always have a sufficient energy reserve to be able to restart the next time.
Alternator functioning
>
The alternator operates on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while spinning makes electricity. It is the engine motor itself that will provide the energy requested by the alternator to produce the energy, via the accessory belt or alternator belt. When your GMC Yukon engine stops, the battery takes over to provide the vehicle with energy.
What are the several alternator noises or sounds on my GMC Yukon and what are the causes?
I find out a knocking noise from the alternator of my GMC Yukon
One of the characteristic noises of a tired alternator on GMC Yukon is a knocking noise. This alternator sound on GMC Yukon will most of the time occur when your engine is idling, it can be connected to voltage drops that could affect the normal operation of electrical elements 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 vehicle with the engine running and you must get a value between 12 and 14.7 volts, which means that your alternator is charging your battery well. If the value is lower, the alternator of your GMC Yukon is tired and you should think about swapping the bearing if it is the only reason otherwise the whole part.
I notice a grinding noise coming from the alternator of my GMC Yukon
If you are in the case where the alternator of your GMC Yukon causes grinding sounds, in this circumstance you will have to check it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, but generally, we generally realise by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this circumstance, we advise that you look for advice this article to find all the necessary information to solve an accessory belt noise on GMC Yukon.
I notice a loud noise from the alternator of my GMC Yukon
Listening a loud noise from the alternator of your GMC Yukon is quite regular, 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 go to this article to find other ways to solve problem of noises from front end on GMC Yukon.
