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 , perhaps you’ve already had that fear. So when you discover an alternator noise on Jeep Grand Cherokee, you can already see 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 discover the role and functions of the alternator in your Jeep Grand Cherokee and then what the causes and solutions to alternator noise on Jeep Grand Cherokee may be.alternator-noise-jeep-grand-cherokee

Role and alternator operation Jeep Grand Cherokee

Alternator role

Your alternator is an fundamental part of your Jeep Grand Cherokee. In fact, its task is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of charging 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 concept of copper coil wound around a magnet . This coil while spinning generates 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 Jeep Grand Cherokee engine stops, the battery takes over to provide the car with energy.

What are the several alternator noises or sounds on my Jeep Grand Cherokee and what are the causes?

I listen to a knocking noise from the alternator of my Jeep Grand Cherokee

One of the typical noises of a tired alternator on Jeep Grand Cherokee is a knocking noise. This alternator sound on Jeep Grand Cherokee will most of the time occur when your engine is idling, it can be associated with voltage drops that could disrupt the normal operation of electrical parts such as headlights for example. Most often, it is a of both bearings of the alternator that is malfunctioning, to check it, use a multimeter on the terminals of your car with the engine running and you must look for 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 Jeep Grand Cherokee is tired and you should think about replacing the bearing if it is the only cause otherwise the entire part.

I discover a grinding noise coming from the alternator of my Jeep Grand Cherokee

If you are in the situation where the alternator of your Jeep Grand Cherokee 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 , generally, we generally realize by looking more closely 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 look for advice this article to find all the necessary information to solve an accessory belt noise on Jeep Grand Cherokee.

I discover a loud noise from the alternator of my Jeep Grand Cherokee

Experiencing a loud noise from the alternator of your Jeep Grand Cherokee is quite normal, 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 suggest that you check out this article to find other ways to solve problem of noises from front end on Jeep Grand Cherokee.