Listening noises from your car regularly is never reassuring, so hearing noises on your Citroen C4 Picasso suspensions when you go over a speed bump can be worrying. This warning 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 essential to check the origin and take the necessary actions to resolve the problem, it is with this goal in mind that we wanted to write this content to support you see more clearly. We will first see the possible explanations for a crack when the speed bump passes, then, 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 Picasso
Check Citroen C4 Picasso suspension
If you notice a suspension noise when you pass a speed bump on your Citroen C4 Picasso, and it is categorized 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 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 job during small bumps that compress the suspensions. To verify if this is the problem that worries you, take a dented road and focus on the noise coming from your front axle as you go over holes. If it is indeed the cups, think of swapping them as soon as possible or you may affect other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have searched for “Citroen C4 Picasso 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 old and the dirt/dust amasses inside them their functions 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 Citroen C4 Picasso, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Citroen C4 Picasso 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 vary direction. If this is the situation, the components that may have been destroyed 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, 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. Remember to take your vehicle to your auto technician or change them if they are involved.
squeaky noise speed bump Citroen C4 Picasso
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 Citroen C4 Picasso, 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 cause this squeaking noise. Bear in mind to verify by going 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 dried out and bring on noise, in which case take them out from the cradle and grease them, this should fix the problem.
Check engine silentblocks
Finally, last case 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 car, a evident fatigue of these will generate 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 Citroen C4 Picasso. To change them go to your auto mechanic.
Other speed bump noise Citroen C4 Picasso
If, despite all its assumptions, you still can’t locate the source of the noise your Citroen C4 Picasso makes when you pass a speed bump, we recommend you to refer to this article on a loud noise on Citroen C4 Picasso or to visit your auto technician in order to carry an in-depth check on your Citroen C4 Picasso and identify this problem.
