Hearing noises from your auto often is never comforting, so hearing noises on your Volvo Xc40 suspensions when you go over a speed bump can be stressing. This sign may be a sign of a insignificant problem as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the cause and take the necessary actions to correct the problem, 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 Volvo Xc40
Check Volvo Xc40 suspension
If you notice a suspension noise when you pass a speed bump on your Volvo Xc40, and it is characterized 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 In fact, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small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 examine if this is the problem that worries 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 changing them quickly or you may damage other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have looked for for “Volvo Xc40 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 In fact, when the cardan bellows get outdated and the dirt/dust accumulates inside them their action is degraded and it is possible to experience a sound when they are in torsion. To examine 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 make a turn at low speed. If it cracks in these two circumstances you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Volvo Xc40, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Volvo Xc40 passes over a speed bumps, it is plausible that the hinges or the stabilizer bar are responsible. Simply like the gimbals, the steering part is mobilized when you modify direction. If this is the case, the components that may have been destroyed by regular wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the causes of your noises, to examine it, place it under the vehicle and apply twists on each of its elements to examine that there is no particular play on one of them, they are expected to endure you quite strongly over their entire travel. Keep in mind to take your Volvo Xc40 to your auto technician or replace them if they are involved.
squeaky noise speed bump Volvo Xc40
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you go over a speed bump with your Volvo Xc40, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause uncommon friction which can provoke this squeaking noise. Bear in mind to examine by going under your vehicle the condition of the paint on your bar which will reveal if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dry and create noise, in which case remove them from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last case that we can examine together, it is the engine silentblocks, in fact, these silentblocks work as pads/shock absorbers between the engine and the cradle of the auto, a obvious fatigue of these will create a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise happens when you pass a speed bumps or any holes with your Volvo Xc40. To swap them go to your auto technician.
Other speed bump noise Volvo Xc40
If, despite all its assumptions, you still can’t uncover the origin of the noise your Volvo Xc40 makes when you pass a speed bump, we suggest you to read this content on a loud noise on Volvo Xc40 or to visit your auto technician in order to carry an in-depth check on your Volvo Xc40 and determine this problem.
