Discovering noises from your auto frequently is never reassuring, so listening noises on your Opel Zafira 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 source and take the necessary actions to solve the problem, it is with this aim in mind that we wanted to write this article to support you see more clearly. We will first see the possible causes 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 Zafira
Check Opel Zafira suspension
If you encounter a suspension noise when you pass a speed bump on your Opel Zafira, and it is characterized 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small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 focus on the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of changing them quickly 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 “Opel Zafira 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 accumulates 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 make a turn at low speed. If it cracks in these two circumstances you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Opel Zafira, don’t hesitate to consult this article.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Opel Zafira 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 adjust direction. If this is the situation, the components that may have been damaged by regular 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 car 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 Opel Zafira to your mechanic or replace them if they are involved.
squeaky noise speed bump Opel Zafira
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 Zafira, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause abnormal 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 tell us if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dry and cause noise, in which case disassemble them from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last possibility 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 obvious weakness of these will make 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 Opel Zafira. To replace them go to your auto technician.
Other speed bump noise Opel Zafira
If, despite all its assumptions, you still can’t locate the source of the noise your Opel Zafira makes when you pass a speed bump, we suggest you to refer to this content on a loud noise on Opel Zafira or to visit your mechanic in order to carry an in-depth check on your Opel Zafira and identify this problem.
