Finding out noises from your auto regularly is never reassuring, so hearing noises on your Opel Insignia suspensions when you go over a speed bump can be disturbing. This sign may be a sign of a minor problem as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the source and take the necessary actions to resolve the problem, it is with this intention 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 Opel Insignia
Check Opel Insignia suspension
If you notice a suspension noise when you pass a speed bump on your Opel Insignia, 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 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 listen to the noise coming from your front axle as you circulate over holes. If it is indeed the cups, think of swapping them fairly quickly or you may damage other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have researched for “Opel Insignia 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 Indeed, when the cardan bellows get outdated and the dirt/dust accumulates inside them their functions is degraded and it is possible to experience a noise when they are in torsion.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 make a turn at low speed. If it cracks in these two circumstances you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Opel Insignia, don’t hesitate to refer to this document.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Opel Insignia passes over a speed bumps, it is plausible that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you change direction. If this is the situation, the parts that may have been damaged by usual wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the origins of your noises, to examine it, position it under the automobile and apply twists on each of its components 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 Opel Insignia to your mechanic or swap them if they are involved.
squeaky noise speed bump Opel Insignia
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 Opel Insignia, 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 create this squeaking noise. Bear in mind to examine by passing under your automobile the condition of the paint on your bar which will tell us if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dried out and create noise, in which case take them off from the cradle and grease them, this should resolve 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 auto, a pronounced fatigue of these will make a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise shows up when you pass a speed bumps or any holes with your Opel Insignia. To change them go to your auto mechanic.
Other speed bump noise Opel Insignia
If, despite all its assumptions, you still can’t locate the origin of the noise your Opel Insignia makes when you pass a speed bump, we advise you to read this article on a loud noise on Opel Insignia or to visit your mechanic in order to carry an in-depth check on your Opel Insignia and discover this problem.
