You certainly suspect it, however the alternator is an essential element within an engine. This one is responsible for transforming energy of the engine block of this Volkswagen Jetta in Electricity supply in order to recharge the battery. In the specific case where there is a problem, this can cause most of the electrical failures. It is therefore crucial to resolve the problem. However, the concern may also come from the belt, or even pulleys. We will see thanks to this article where will be able to come from problems selon le noise that comes out.
Noise alternator belt on a Volkswagen Jetta
La alternator belt, also called accessory belt, proves to be the essential element which contributes to the proper functioning of the alternator. It is the latter which, through its rotation, drives the alternator and will create electricity. However, it also serves to operate other pumps of the engine block. If it breaks, it can cause damages really important in the engine of the Volkswagen Jetta.
A metallic noise on the Volkswagen Jetta:
It's a noise that usually comes Cold. The most common source is that some of the streaks on the belt turn out to be damaged. However, it can also occur as soon as the pulley is slightly out of the gon. If the belt deteriorates it can naturally break. If you recognize this noise, the best thing to do is to replace the belt and the problem will be repaired almost every time.
A sharp squeal on the Volkswagen Jetta:
It is the most common and least significant dysfunction. It is usually made cold, but could recur when you drive sometimes. However, it suddenly disappears. This inconvenience generally comes when the accessory belt is slack. Just the tender and it's won. Warning, when it remains in this state for too long, the belt may become damaged and cause more serious malfunction in the end. This sharp noise also happens sometimes when the damper pulley is damaged, however it is less frequent.
A slight hiss or breath on the Volkswagen Jetta:
It is the opposite of the dysfunction of the last example. The belt is probably too tight or too small. You can imagine what you still have to do!
Alternator noise on a Volkswagen Jetta
When it is really the alternator that creates this noise and not your belt, then the hassle will be fundamentally divergent. However, the noise emitted can have similarities compared to that of a belt, i.e. high hiss. The concern could come from a electrical failure, this remains relatively frequent. If it happens that the voltage essential to the proper functioning of the Volkswagen Jetta is usually deficient, this is generally seen during a lack of power of the indicator lights or lights inside the vehicle. In case the power gap is excessive, it happens that the battery indicator stays on. So as to carry out a real diagnostic of your concern, it remains entirely feasible to use a voltmeter to take the tension via the plus and minus of its battery, the ignition is on obviously. If the voltage turns out to be lower than that recommended on the battery, the concern could consequently come from the alternator. In this situation, you usually need to replace it.
Conclusion:
A new alternator noise usually comes from the alternator belt, but could also come from the alternator itself. Economically, the alternator belt is relatively cheaper compared to the alternator. Get the price from a mechanic before embarking on repairs, as you are not necessarily certain of the cause of the problem. We hope this guide helped you, if so don't hesitate to post a comment. Have a good ride with your Volkswagen Jetta.