You can imagine it, but the alternator is an essential component in an engine. He is the one who is responsible for changing energy of the engine block of this Volvo 121 in Electricity supply in order to recharge the battery. If there is a problem, it could essentially cause electrical failures. It is therefore crucial to resolve the problem. However, the problem could mainly arise from its belt, or even pulleys. We are going to discover through this guide where the problems related to noise which is issued.noise-alternator Volvo-121

Noise alternator belt on a Volvo 121

La alternator belt, also called accessory belt, happens to be the capital element that contributes to the proper functioning of the alternator. It is the latter which, via its convolution, takes the alternator and produces electricity. However, it also serves to operate different pumps of the engine block. In the event that it breaks, the latter may cause damages pretty serious in your engine of this Volvo 121.

A metallic noise on the Volvo 121:

This is a noise that generally comes Cold. The most common reason is that the streaks on this belt will be damaged. However, this could also happen if the pulley is slightly out of the gon. In case the belt deteriorates it can of course break. If you ever recognize this sound, it is best to replace the belt and the problem will almost certainly be corrected.

A sharp squeal on the Volvo 121:

Indeed, it is the most recurring hassle, but also the least dramatic. It often comes out cold, but will sometimes reappear even when hot sometimes. However, it stops instantly. This inconvenience usually comes when the accessory belt is not tight enough. It will suffice tighten and voila. Be careful, when it remains in this situation for too long, the belt can be damaged and cause a more serious problem at the end. This sharp squeak also sometimes occurs when the damper pulley happens to be damaged, but it's pretty rare.

A slight hiss or breath on the Volvo 121:

It's the opposite of the hassle before. Your belt is probably too tight or too small. You can imagine what you should do!

Alternator noise on a Volvo 121

In the event that it is really the alternator that makes the sound and not the belt, then the hassle will turn out to be really divergent. However, this emitted sound may have resemblances compared to that of a belt, i.e. high hiss. The malfunction will sometimes come from a electrical failure, it's pretty ordinary. If ever voltage essential to the good activity of your Volvo 121 remains insufficient, it is usually identified during a lack of intensity of the indicator lights or lights inside the vehicle. If ever the insufficient intensity is out of the ordinary, it happens that the battery indicator can be in operation. In order to make a good diagnostic of your malfunction, it is still quite possible to use a voltmeter to check the tension via the plus and the - of your battery, the ignition works naturally. If the voltage is ever lower than that suggested on the battery, the problem could therefore come from the alternator. So, in general, it will have to be replaced.

Conclusion:

An alternator sound generally comes from the alternator belt, but will sometimes also come from the alternator itself. Economically, the alternator belt is much cheaper than the alternator. Get a quote from a mechanic before embarking on work, since we are not necessarily certain of the source of the problem. We hope that this post served you something, in this case do not hesitate to post a comment. Enjoy the road with your Volvo 121.