Discovering noises from your automobile often is never comforting, so listening noises on your Lexus NX suspensions when you go over a speed bump can be stressing. This warning 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 goal in mind that we wanted to write this content 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 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 Lexus NX
Check Lexus NX suspension
If you encounter a suspension noise when you pass a speed bump on your Lexus NX, and it is categorized by a “clack” or cracking, it is highly plausible that your suspension block is the origin 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 role during small bumps that compress the suspensions. To examine if this is the problem that worries 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 replacing them as soon as possible or you may ruin other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have looked for for “Lexus NX 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 In fact, when the cardan bellows get out of date and the dirt/dust builds up inside them their action is deteriorated and it is possible to experience a noise when they are in torsion.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 cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Lexus NX, don’t hesitate to refer to this content.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Lexus NX 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 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 vehicle and apply twists on each of its components to examine that there is no particular play on one of them, they are expected to endure you quite strongly over their entire travel. Remember to take your Lexus NX to your mechanic or swap them if they are involved.
squeaky noise speed bump Lexus NX
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you go over a speed bump with your Lexus NX, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause uncommon friction which can cause this squeaking noise. Please remember to examine by passing under your vehicle 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 create noise, in which case remove them from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last point that we can examine 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 generate a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise shows up when you pass a speed bumps or any holes with your Lexus NX. To swap them go to your mechanic.
Other speed bump noise Lexus NX
If, even though all its assumptions, you still can’t find the source of the noise your Lexus NX makes when you pass a speed bump, we recommend you to consult this article on a loud noise on Lexus NX or to visit your mechanic in order to carry an in-depth check on your Lexus NX and find this problem.
