Discovering noises from your vehicle frequently is never comforting, so discovering noises on your Renault Laguna suspensions when you pass a speed bump can be stressful. This warning sign may be a sign of a minor issue as well as a warning of a much larger repair to come. In any case, it is essential to check the source and take the necessary actions to eliminate the issue, it is with this objective in mind that we wanted to write this document to support you see more clearly. We will first see the possible reasons 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 Renault Laguna
Check Renault Laguna suspension
If you encounter a suspension noise when you pass a speed bump on your Renault Laguna, 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 Indeed, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps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 examine if this is the issue that worries you, take a dented road and listen to the noise coming from your front axle as you pass over holes. If it is indeed the cups, think of changing them fairly quickly or you may affect other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have researched for “Renault Laguna 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 Indeed, when the cardan bellows get out of date and the dirt/dust builds up inside them their functions is deteriorated and it is possible to experience a sound when they are in torsion.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 situations you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Renault Laguna, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Renault Laguna passes over a speed bumps, it is imaginable 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 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, put it under the vehicle and apply twists on each of its elements to examine that there is no particular play on one of them, they are meant to resist you quite strongly over their entire travel. Remember to take your vehicle to your auto mechanic or change them if they are involved.
squeaky noise speed bump Renault Laguna
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you pass a speed bump with your Renault Laguna, it is plausible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause abnormal 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 indicate if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dry and provoke noise, in which case disassemble them from the cradle and grease them, this should solve the issue.
Check engine silentblocks
Finally, last case 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 vehicle, a pronounced weakness of these will generate 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 Renault Laguna. To swap them go to your auto technician.
Other speed bump noise Renault Laguna
If, even though all its assumptions, you still can’t uncover the source of the noise your Renault Laguna makes when you pass a speed bump, we encourage you to refer to this content on a loud noise on Renault Laguna or to visit your auto mechanic in order to carry an in-depth check on your Renault Laguna and identify this issue.
