Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If that didn’t happen to you, at minimum you’ve already had that fear. So when you notice an alternator noise on Porsche 911, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to write this content to help you find the sources of alternator sounds. In this article, you will first see the role and operation of the alternator in your Porsche 911 and then what the causes and solutions to alternator noise on Porsche 911 may be.
Role and alternator operation Porsche 911
Alternator role
Your alternator is an essential part of your Porsche 911. Indeed, its task is to provide 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 allow you to always have a sufficient energy source 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 principle of copper coil wound around a magnet . This coil while rotating makes electricity. It is the engine itself that will give the energy needed by the alternator to create the energy, via the accessory belt or alternator belt. When your Porsche 911 engine stops, the battery takes over to give the vehicle with energy.
What are the distinctive alternator noises or sounds on my Porsche 911 and what are the causes?
I listen to a knocking noise originating from the alternator of my Porsche 911
One of the characteristic noises of a tired alternator on Porsche 911 is a knocking noise. This alternator sound on Porsche 911 will most of the time happen when your engine is idling, it can be linked to voltage drops that could affect the normal operation of electrical elements such as headlights for example. In many cases, it is a of both bearings of the alternator that is malfunctioning, to verify it, use a multimeter on the terminals of your vehicle 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 Porsche 911 is tired and you should think about swapping the bearing if it is the only cause otherwise the entire part.
I notice a grinding noise coming from the alternator of my Porsche 911
If you are in the case where the alternator of your Porsche 911 generates grinding sounds, in this circumstance you will have to look at 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 content to find all the necessary details to solve an accessory belt noise on Porsche 911.
I notice a loud noise from the alternator of my Porsche 911
Experiencing a loud noise from the alternator of your Porsche 911 is quite common, in fact, it emits an audible sound when producing 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 go to this content to find other ways to solve problem of noises from front end on Porsche 911.
