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 , perhaps you’ve already had that fear. So when you find out an alternator noise on GMC Yukon XL, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this content to help 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 XL and then what the causes and solutions to alternator noise on GMC Yukon XL may be.
Role and alternator operation GMC Yukon XL
Alternator role
Your alternator is an fundamental component of your GMC Yukon XL. Indeed, its task is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the goal of charging 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 operates on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while rotating makes 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 GMC Yukon XL engine stops, the battery takes over to provide the vehicle with energy.
What are the distinctive alternator noises or sounds on my GMC Yukon XL and what are the causes?
I discover a knocking noise from the alternator of my GMC Yukon XL
One of the typical noises of a tired alternator on GMC Yukon XL is a knocking noise. This alternator sound on GMC Yukon XL will most of the time happen when your engine is idling, it can be connected to voltage drops that could disrupt the normal operation of electrical parts such as headlights for example. In many cases, it is a of both bearings of the alternator that is faulty, to examine 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 XL is tired and you should think about swapping the bearing if it is the only reason otherwise the entire part.
I find out a grinding noise coming from the alternator of my GMC Yukon XL
If you are in the case where the alternator of your GMC Yukon XL produces grinding sounds, in this circumstance you will have to look at it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , generally, we often realize by looking more closely that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this circumstance, we recommend that you consult this content to find all the necessary information to solve an accessory belt noise on GMC Yukon XL.
I find out a loud noise from the alternator of my GMC Yukon XL
Hearing a loud noise from the alternator of your GMC Yukon XL is quite regular, in fact, it produces an audible sound when creating the electrical pulses it generates. It is up to you to examine 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 look into this content to find other ways to solve problem of noises from front end on GMC Yukon XL.
