Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If it never happened to you , at least you’ve already had that apprehension. So when you hear an alternator noise on Chevrolet Express, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this post to support you find the origins of alternator sounds. In this article, you will first see the role and functions of the alternator in your Chevrolet Express and then what the causes and solutions to alternator noise on Chevrolet Express may be.
Role and alternator operation Chevrolet Express
Alternator role
Your alternator is an essential component of your Chevrolet Express. Indeed, its goal is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission 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 sufficient energy reserve to be able to restart the next time.
Alternator functioning
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The alternator works on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while spinning generates electricity. It is the engine motor itself that will give the energy required by the alternator to produce the energy, via the accessory belt or alternator belt. When your Chevrolet Express engine stops, the battery takes over to give the vehicle with energy.
What are the distinctive alternator noises or sounds on my Chevrolet Express and what are the causes?
I perceive a knocking noise coming from the alternator of my Chevrolet Express
One of the typical noises of a tired alternator on Chevrolet Express is a knocking noise. This alternator sound on Chevrolet Express will generally occur 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 malfunctioning, 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 Chevrolet Express is tired and you should think about swapping the bearing if it is the only cause otherwise the whole part.
I hear a grinding noise coming from the alternator of my Chevrolet Express
If you are in the situation where the alternator of your Chevrolet Express produces grinding sounds, in this case you will have to look into it more seriously. This indicator can testify as for the knocking sound of a tired bearing, but in most cases, we generally see by looking more strongly that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this case, we suggest that you look for advice this article to find all the necessary information to solve an accessory belt noise on Chevrolet Express.
I hear a loud noise from the alternator of my Chevrolet Express
Finding out a loud noise from the alternator of your Chevrolet Express is quite typical, in fact, it emits 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 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 suggest that you look into this article to find other ways to solve problem of noises from front end on Chevrolet Express.
