Experiencing noises from your vehicle regularly is never reassuring, so listening noises on your Toyota Corolla 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 necessary to check the source and take the necessary actions to correct the issue, it is with this intention in mind that we wanted to write this article 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 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 Toyota Corolla
Check Toyota Corolla suspension
If you encounter a suspension noise when you pass a speed bump on your Toyota Corolla, 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 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 check if this is the issue that worries you, take a dented road and pay attention to the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of swapping them quickly or you may ruin other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have searched for “Toyota Corolla 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 Indeed, when the cardan bellows get outdated and the dirt/dust builds up inside them their operation is degraded and it is possible to experience a sound when they are in torsion. To check 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 swapping it or them. If you have the feeling that this noise is more like a a loud noise on Toyota Corolla, don’t hesitate to read this article.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Toyota Corolla passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Simply 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 check it, position it under the car and apply twists on each of its components to check that there is no special play on one of them, they are meant to resist you quite strongly over their entire travel. Please remember to take your Toyota Corolla to your auto technician or replace them if they are involved.
squeaky noise speed bump Toyota Corolla
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you pass a speed bump with your Toyota Corolla, it is plausible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause abnormal friction which can create this squeaking noise. Remember to check by passing under your car 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 dry and bring on noise, in which case take them off from the cradle and grease them, this should fix the issue.
Check engine silentblocks
Finally, last possibility that we can check together, it is the engine silentblocks, in fact, these silentblocks work as pads/shock absorbers between the engine and the cradle of the vehicle, a evident fatigue of these will make a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise occurs when you pass a speed bumps or any holes with your Toyota Corolla. To replace them go to your auto mechanic.
Other speed bump noise Toyota Corolla
If, despite all its assumptions, you still can’t find the source of the noise your Toyota Corolla makes when you pass a speed bump, we recommend you to consult this content on a loud noise on Toyota Corolla or to visit your auto technician in order to carry an in-depth check on your Toyota Corolla and identify this issue.