Hearing noises from your automobile often is never reassuring, so listening noises on your Citroen C4 suspensions when you go over a speed bump can be stressful. This symptom 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 important to check the cause and take the necessary actions to resolve the trouble, it is with this intention in mind that we wanted to write this document to help you see more clearly. We will first see the possible explanations for a crack when the speed bump passes, after that, what can be the reason 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 Citroen C4
Check Citroen C4 suspension
If you notice a suspension noise when you pass a speed bump on your Citroen C4, and it is characterized by a “clack” or cracking, it is highly plausible that your suspension block is the origin of it. Indeed, it may be the suspension cups, which, when they are old, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps that compress the suspensions. To verify if this is the trouble that worries you, take a dented road and focus on the noise coming from your front axle as you circulate 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 fixes.
Check the cardan shaft
If you are here because you have researched for “Citroen C4 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 Indeed, when the cardan bellows get out of date and the dirt/dust accumulates inside them their operation is deteriorated and it is possible to experience a noise when they are in torsion.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 make a turn at low speed. If it cracks in these two cases you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Citroen C4, don’t hesitate to consult this document.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Citroen C4 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 adjust direction. If this is your situation, the components that may have been affected by usual 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, place it under the car and apply twists on each of its components to verify that there is no special play on one of them, they are expected to resist you quite strongly over their entire travel. Please remember to take your Citroen C4 to your auto technician or swap them if they are involved.
squeaky noise speed bump Citroen C4
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 Citroen C4, it is plausible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause abnormal friction which can generate this squeaking noise. Keep in mind to verify by passing under your car the condition of the paint on your bar which will reveal if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dry and create noise, in which case take them off from the cradle and grease them, this should solve the trouble.
Check engine silentblocks
Finally, last point 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 automobile, 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 comes up when you pass a speed bumps or any holes with your Citroen C4. To replace them go to your mechanic.
Other speed bump noise Citroen C4
If, despite all its assumptions, you still can’t find the origin of the noise your Citroen C4 makes when you pass a speed bump, we advise you to refer to this content on a loud noise on Citroen C4 or to visit your auto technician in order to carry an in-depth check on your Citroen C4 and identify this trouble.
