Hearing noises from your auto frequently is never comforting, so listening noises on your hyundai i40 suspensions when you go over a speed bump can be disturbing. This sign may be a sign of a minor issue as well as a warning of a much larger repair to come. In any case, it is essential to check the source and take the necessary actions to solve the issue, it is with this objective in mind that we wanted to write this article to support you see more clearly. We will first see the possible reasons 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 hyundai i40
Check hyundai i40 suspension
If you notice a suspension noise when you pass a speed bump on your hyundai i40, and it is characterized by a “clack” or cracking, it is highly possible that your suspension block is the cause of it. Indeed, it may be the suspension cups, which, when they are dead, 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 issue 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 fairly quickly or you may damage other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have searched for “hyundai i40 suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. Indeed, when the cardan bellows get outdated and the dirt/dust amasses inside them their operation is deteriorated and it is possible to experience a sound when they are in torsion.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 make a turn at low speed. If it cracks in these two situations you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on hyundai i40, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your hyundai i40 passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Exactly like the gimbals, the steering part is mobilized when you change direction. If this is the case, the components that may have been damaged by usual wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the causes of your noises, to verify it, put it under the automobile 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 mechanic or swap them if they are involved.
squeaky noise speed bump hyundai i40
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 hyundai i40, it is possible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause unusual friction which can cause this squeaking noise. Remember to verify by going under your automobile the condition of the paint on your bar which will indicate if there is friction. Second possible explanation, it may be your stabilizer bar silentblocks that are dried out and provoke noise, in which case disassemble them from the cradle and grease them, this should fix the issue.
Check engine silentblocks
Finally, last point that we can verify together, it is the engine silentblocks, actually, these silentblocks act as pads/shock absorbers between the engine and the cradle of the auto, a noticable weakness of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise appears when you pass a speed bumps or any holes with your hyundai i40. To swap them go to your technician.
Other speed bump noise hyundai i40
If, even though all its assumptions, you still can’t uncover the origin of the noise your hyundai i40 makes when you pass a speed bump, we suggest you to refer to this content on a loud noise on hyundai i40 or to visit your auto mechanic in order to carry an in-depth check on your hyundai i40 and find this issue.
