As you can imagine, the alternator is a fundamental component in an engine. He is the one who guarantees to transform energy the engine of your Volvo 440 in Electricity supply in order to recharge the battery. If there is ever a problem, this could cause the majority of electrical failures. It is therefore important to resolve the problem. However, the concern could also arise from its belt, sometimes pulleys. We will discover in this text where the problems according to the noise which is issued.
Noise alternator belt on a Volvo 440
La alternator belt, also known as an accessory belt, is the key element that contributes to the proper functioning of the alternator. It is this which, thanks to its convolution, drives the alternator and makes it possible to produce electricity. But it also serves to train different pumps of the motor. If it breaks, it may cause damages rather important within the engine of this Volvo 440.
A metallic noise on the Volvo 440:
Here is a noise that usually comes Cold. The most common source is that part of the streaks on this belt will be damaged. But it can also happen if the pulley is slightly off-center. If the belt becomes loose it can of course break. If it happens that you identify this noise, it is best to replace the belt and the problem will be solved almost every time.
A sharp squeal on the Volvo 440:
This remains the most common concern, but also the least dramatic. It usually comes cold, but can reproduce even when hot at times. However, it stops instantly. This inconvenience generally comes from when the accessory belt is not tight enough. All you need is tighten and it's done. Small warning, if it remains in this state for too long, the belt may be damaged and cause more serious concern over time. This sharp squeak also sometimes occurs when the damper pulley happens to be deteriorated, however it is less common.
A slight hiss or breath on the Volvo 440:
It is the opposite of the preoccupation of before. The belt is probably far too tight or even too short. You know what you need to do!
Alternator noise on a Volvo 440
Assumed that it is indeed the alternator which creates this noise and not the belt, in this situation the malfunctions will be found to be completely different. However, this emitted noise may have resemblances to that of a belt, i.e. a high hiss. The malfunction may result from a electrical failure, it is rather usual. In case the voltage useful for the good activity of your Volvo 440 remains deficient, this is generally seen during a lack of alertness of the lights or bulbs within the vehicle. Assuming the lack of alertness is evident, it is possible that the battery indicator can be turned on. So as to make a good diagnostic of the malfunction, it is possible to use a voltmeter to check the tension via the + and - of your battery, with the engine running of course. If the voltage is lower than that suggested by the battery, the problem can therefore come from the alternator. In this case, it will usually need to be replaced.
Conclusion:
Alternator noise usually comes from the alternator belt, but can also come from the alternator itself. Economically, the alternator belt is relatively cheaper compared to the alternator. Get a quote from a mechanic before starting repairs, as you can never be certain of the cause of the problem. We hope this post served you something, if so you can post a comment. Have a good trip with your Volvo 440.