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 apprehension. So when you notice an alternator noise on Renault Trafic, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this article to support you locate the origins of alternator sounds. In this article, you will first learn the role and functions of the alternator in your Renault Trafic and then what the causes and solutions to alternator noise on Renault Trafic may be.alternator-noise-renault-trafic

Role and alternator operation Renault Trafic

Alternator role

Your alternator is an fundamental part of your Renault Trafic. Indeed, its task is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of recharging the battery once the car is in motion, to provide power to the car 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 generates electricity. It is the engine itself that will provide the energy needed by the alternator to produce the energy, via the accessory belt or alternator belt. When your Renault Trafic engine stops, the battery takes over to provide the car with energy.

What are the different alternator noises or sounds on my Renault Trafic and what are the causes?

I hear a knocking noise from the alternator of my Renault Trafic

One of the characteristic noises of a tired alternator on Renault Trafic is a knocking noise. This alternator sound on Renault Trafic 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 components such as headlights for example. Most often, it is a of both bearings of the alternator that is defective, to verify it, use a multimeter on the terminals of your car with the engine running and you must obtain a value between 12 and 14.7 volts, which means that your alternator is recharging your battery well. If the value is lower, the alternator of your Renault Trafic is tired and you should think about replacing the bearing if it is the only reason otherwise the whole part.

I notice a grinding noise coming from the alternator of my Renault Trafic

If you are in the case where the alternator of your Renault Trafic causes 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 general, we generally notice by looking more meticulously that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we advise that you read this document to find all the necessary information to solve an accessory belt noise on Renault Trafic.

I notice a loud noise from the alternator of my Renault Trafic

Experiencing a loud noise from the alternator of your Renault Trafic is quite common, in fact, it produces 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 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 take a look at this document to find other ways to solve problem of noises from front end on Renault Trafic.