Hearing noises from your automobile often is never reassuring, so discovering noises on your Nissan Leaf suspensions when you go over a speed bump can be disturbing. This 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 fundamental to check the cause and take the necessary actions to eliminate the problem, it is with this aim in mind that we wanted to write this article to help 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-noise-nissan-leaf

Suspension cracking noise Nissan Leaf

Check Nissan Leaf suspension

If you experience a suspension noise when you pass a speed bump on your Nissan Leaf, and it is characterized by a “clack” or cracking, it is highly plausible 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 examine if this is the problem that concerns you, take a dented road and pay attention to the noise coming from your front axle as you pass over holes. If it is indeed the cups, think of changing 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 “Nissan Leaf 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 Indeed, when the cardan bellows get out of date and the dirt/dust builds up inside them their operation is degraded and it is possible to experience a noise when they are in torsion. To examine 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 circumstances you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Nissan Leaf, don’t hesitate to read this article.

Check steering hinges/stabilizer bar

Finally, when you experience a suspension noise when your Nissan Leaf passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Exactly like the gimbals, the steering part is mobilized when you modify direction. If this is the situation, the parts 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 examine it, place it under the car and apply twists on each of its elements to examine 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 swap them if they are involved.

squeaky noise speed bump Nissan Leaf

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 Leaf, it is plausible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause unusual friction which can provoke this squeaking noise. Please remember to examine by passing under your car the condition of the paint on your bar which will show if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dried out and create noise, in which case disassemble them from the cradle and grease them, this should fix the problem.

Check engine silentblocks

Finally, last case that we can examine together, it is the engine silentblocks, actually, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the automobile, a noticable weakness of these will create a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise occurs when you pass a speed bumps or any holes with your Nissan Leaf. To swap them go to your mechanic.

Other speed bump noise Nissan Leaf

If, even though all its assumptions, you still can’t find the source of the noise your Nissan Leaf makes when you pass a speed bump, we advise you to read this content on a loud noise on Nissan Leaf or to visit your auto technician in order to carry an in-depth check on your Nissan Leaf and identify this problem.