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 Opel Antara, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to write this content to help you locate the origins of alternator sounds. In this article, you will first learn the role and functions of the alternator in your Opel Antara and then what the causes and solutions to alternator noise on Opel Antara may be.alternator-noise-opel-antara

Role and alternator operation Opel Antara

Alternator role

Your alternator is an important part of your Opel Antara. In fact, its objective 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 car is in motion, to provide power to the car in motion and to allow you to always have a sufficient energy reserve 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 generates electricity. It is the engine itself that will provide the energy requested by the alternator to create the energy, via the accessory belt or alternator belt. When your Opel Antara engine stops, the battery takes over to provide the car with energy.

What are the distinctive alternator noises or sounds on my Opel Antara and what are the causes?

I perceive a knocking noise originating from the alternator of my Opel Antara

One of the typical noises of a tired alternator on Opel Antara is a knocking noise. This alternator sound on Opel Antara will generally appear 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 verify it, use a multimeter on the terminals of your car 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 Opel Antara is tired and you should think about replacing the bearing if it is the only cause otherwise the entire part.

I find out a grinding noise coming from the alternator of my Opel Antara

If you are in the case where the alternator of your Opel Antara generates grinding sounds, in this case you will have to look at it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, however , in general, we generally realise by looking more carefully 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 content to find all the necessary information to solve an accessory belt noise on Opel Antara.

I find out a loud noise from the alternator of my Opel Antara

Listening a loud noise from the alternator of your Opel Antara is quite typical, in fact, it emits an audible sound when creating the electrical pulses it generates. It is up to you to verify 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 content to find other ways to solve problem of noises from front end on Opel Antara.