Hearing noises from your vehicle frequently is never comforting, so discovering noises on your Peugeot 308 suspensions when you pass a speed bump can be stressing. This warning sign may be a sign of a small trouble as well as a warning of a much larger repair to come. Whatever the case, it is fundamental to check the source and take the necessary actions to solve the trouble, it is with this aim in mind that we wanted to write this content 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 Peugeot 308
Check Peugeot 308 suspension
If you experience a suspension noise when you pass a speed bump on your Peugeot 308, 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 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 trouble that concerns you, take a dented road and focus on the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of changing them fairly quickly or you may ruin other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have looked for for “Peugeot 308 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 old 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 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 situations you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Peugeot 308, don’t hesitate to consult this document.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Peugeot 308 passes over a speed bumps, it is plausible 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 situation, the components that may have been damaged 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 automobile and apply twists on each of its components to verify that there is no particular play on one of them, they are supposed to resist you quite strongly over their entire travel. Please remember to take your Peugeot 308 to your technician or swap them if they are involved.
squeaky noise speed bump Peugeot 308
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you pass a speed bump with your Peugeot 308, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can cause this squeaking noise. Keep in mind to verify by going under your automobile the condition of the paint on your bar which will tell us 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 off from the cradle and grease them, this should eliminate the trouble.
Check engine silentblocks
Finally, last case that we can verify together, it is the engine silentblocks, actually, these silentblocks work as pads/shock absorbers between the engine and the cradle of the vehicle, a pronounced fatigue of these will make a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise shows up when you pass a speed bumps or any holes with your Peugeot 308. To swap them go to your technician.
Other speed bump noise Peugeot 308
If, even though all its assumptions, you still can’t locate the origin of the noise your Peugeot 308 makes when you pass a speed bump, we encourage you to consult this article on a loud noise on Peugeot 308 or to visit your technician in order to carry an in-depth check on your Peugeot 308 and find this trouble.
