It is never pleasurable to hear a noise from your car you don’t know where from. So what if you discover a serpentine belt noise that stays on your Subaru Legacy? It is highly possible that this is a unimportant problem, but before being sure, it is better to carry out some verifications. If this belt noise comes from your serpentine or driving belt, our team has written a content to support you finding and solving it. First, we will look at the serpentine belt noises on your Subaru Legacy and then we will take a look at the sources of these sounds.
I encounter noises from serpentine belt Subaru Legacy
The best method to check the state of your belts is to listen to your car. Immediately after you find sounds such as squealing or bells, you should take a closer look to examine their origin. The function of the serpentine belt or driving belt of your Subaru Legacy is to transfer the movement of the engine to the secondary components that it will supply with energy. Like steering, air conditioning, water pump. Its role is therefore fundamental in the normal operation of your car. The serpentine belt is said to be asynchronous, i.e. unlike the timing belt, it has the ability to drive different engine components at variable speeds.
I hear squealing noises on my serpentine belt Subaru Legacy
This sort of squealing belt noises on Subaru Legacy, which will often be acute, can commonly appear when the engine is cold, or when the acceleration increases in intensity. . This sort of sound must be heavy and it is obviously quite simple to link it with one of these belts. To examine, do not hesitate to open your bonnet, engine running cold and check the origin of this noise, the serpentine or driving belt being visible, it should not be too complicated for you to point a belt noise on your Subaru Legacy. The reason of this problem can be connected to the damper pulley, which works as a damper to reduce irregularities in the tension in the motor cycle and therefore in the energy transmission to the belt. This results in a loose belt that will jerk. However, you still have an opportunity that this event is annodine. As the serpentine belt of your Subaru Legacy is exposed, it may squeak due to excessive humidity due to weather conditions and it may stop with a change in conditions. Keep in mind to examine the state of your belt (crack, crack), if this is the case change it, otherwise simply tighten the belt.
I hear loud serpentine or driving belt noises Subaru Legacy
Just like squealing, a driving belt noise on your Subaru Legacy that sounds like a loud grinding sound can say a lot about its state. It is therefore necessary that you look further and find the cause for this sound that can indicate the end of your belt’s life. Like squealing noise, it can be identified in most cases when cold . It generally means a worn pulley whose streaks no longer allow it to be driven properly. Other possibilities, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the origin of this problem. Make sure you examine first the serpentine/driving belt which in most cases is the reason of this problem, otherwise it will be necessary to change the tensioner or pulley.
I hear bearing noises on the serpentine belt of my Subaru Legacy
Finally, if in your case you recognize a bearing belt noise on Subaru Legacy, it is possible that it is connected to a serpentine belt that is too tight . Indeed, it is possible that its size may be smaller than prescribed and cause the entire system to overvoltage, resulting in this whistling noise or slight rolling noise. The problem in this case is that the bearing bearings or the Damper pulley may fail . Remember, therefore, to stretch the belt to limit the risks or to replace it if it is too short. If after checking all thoses possibilities, you still notice a belt noises, read our article about timing belt noises on Subaru Legacy which could maybe help you.
