Listening noises from your car regularly is never reassuring, so hearing noises on your Nissan Micra 4 suspensions when you go over a speed bump can be stressing. This sign may be a sign of a small problem as well as a warning of a much larger repair to come. Whatever the case, it is essential to check the cause and take the necessary actions to eliminate the problem, it is with this objective in mind that we wanted to write this content to help you see more clearly. We will first see the possible reasons 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 Nissan Micra 4
Check Nissan Micra 4 suspension
If you experience a suspension noise when you pass a speed bump on your Nissan Micra 4, and it is characterized by a “clack” or cracking, it is highly possible that your suspension block is the cause of it. In fact, 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 check if this is the problem 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 as soon as possible or you may ruin other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have researched for “Nissan Micra 4 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 amasses inside them their working is deteriorated and it is possible to experience a sound when they are in torsion. To check 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 swapping it or them. If you have the feeling that this noise is more like a a loud noise on Nissan Micra 4, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Nissan Micra 4 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 your situation, the components that may have been broken 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 check it, position it under the vehicle and apply twists on each of its components to check that there is no special play on one of them, they are meant to endure you quite strongly over their entire travel. Remember to take your vehicle to your auto technician or replace them if they are involved.
squeaky noise speed bump Nissan Micra 4
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 Nissan Micra 4, it is possible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can provoke this squeaking noise. Please remember to check by passing under your vehicle the condition of the paint on your bar which will reveal if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dried out and cause 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 check together, it is the engine silentblocks, in fact, these silentblocks work as pads/shock absorbers between the engine and the cradle of the car, a noticable fatigue of these will make a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise appears when you pass a speed bumps or any holes with your Nissan Micra 4. To replace them go to your auto mechanic.
Other speed bump noise Nissan Micra 4
If, despite all its assumptions, you still can’t locate the origin of the noise your Nissan Micra 4 makes when you pass a speed bump, we recommend you to read this content on a loud noise on Nissan Micra 4 or to visit your auto technician in order to carry an in-depth check on your Nissan Micra 4 and determine this problem.
