Listening noises from your automobile regularly is never reassuring, so listening noises on your Subaru Legacy suspensions when you go over a speed bump can be worrying. This sign may be a sign of a minor trouble as well as a warning of a much larger repair to come. In any case, it is fundamental to check the origin and take the necessary actions to solve the trouble, it is with this aim in mind that we wanted to write this document to support you see more clearly. We will first see the possible causes for a crack when the speed bump passes, after that, what can be the cause of a squeaking noise when a speed bump is being passed and finally what to do if you have another noise when a speed bump is passed.
Suspension cracking noise Subaru Legacy
Check Subaru Legacy suspension
If you experience a suspension noise when you pass a speed bump on your Subaru Legacy, and it is categorized by a “clack” or cracking, it is highly plausible that your suspension block is the cause of it. In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small bumps that compress the suspensions. To verify if this is the trouble that concerns you, take a dented road and pay attention to the noise coming from your front axle as you go over holes. If it is indeed the cups, think of replacing them as soon as possible or you may damage other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have looked for for “Subaru Legacy suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. In fact, when the cardan bellows get outdated and the dirt/dust accumulates inside them their operation is deteriorated and it is possible to experience a noise when they are in torsion. To verify this, you can try both types of torsion, first vertical with suspension compressions on the speed bump passages, and horizontal when you are going to turn at low speed. If it cracks in these two conditions you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Subaru Legacy, don’t hesitate to refer to this content.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Subaru Legacy passes over a speed bumps, it is plausible that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you adjust direction. If this is the case, the components that may have been broken by normal wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the origins of your noises, to verify it, put it under the car and apply twists on each of its components to verify that there is no particular play on one of them, they are meant to resist you quite strongly over their entire travel. Remember to take your vehicle to your auto technician or replace them if they are involved.
squeaky noise speed bump Subaru Legacy
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you go over a speed bump with your Subaru Legacy, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause irregular friction which can cause this squeaking noise. Keep in mind to verify by going under your car the condition of the paint on your bar which will indicate if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dry and provoke noise, in which case take them out from the cradle and grease them, this should fix the trouble.
Check engine silentblocks
Finally, last point that we can verify together, it is the engine silentblocks, in fact, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the automobile, a evident fatigue of these will create a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise comes up when you pass a speed bumps or any holes with your Subaru Legacy. To swap them go to your technician.
Other speed bump noise Subaru Legacy
If, even though all its assumptions, you still can’t uncover the source of the noise your Subaru Legacy makes when you pass a speed bump, we recommend you to consult this content on a loud noise on Subaru Legacy or to visit your auto technician in order to carry an in-depth check on your Subaru Legacy and discover this trouble.
