Finding out noises from your automobile regularly is never comforting, so listening noises on your Toyota Avalon suspensions when you go over a speed bump can be disturbing. This symptom may be a sign of a small problem as well as a warning of a much larger repair to come. In any case, it is important to check the origin and take the necessary actions to eliminate the problem, it is with this intention in mind that we wanted to write this content to support you see more clearly. We will first see the possible reasons for a crack when the speed bump passes, after that, 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 Avalon
Check Toyota Avalon suspension
If you experience a suspension noise when you pass a speed bump on your Toyota Avalon, and it is categorized by a “clack” or cracking, it is highly possible that your suspension block is the cause 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 job during small bumps that compress the suspensions. To verify if this is the problem that concerns you, take a dented road and listen to the noise coming from your front axle as you go over holes. If it is indeed the cups, think of changing them as soon as possible or you may ruin other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have searched for “Toyota Avalon 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 Indeed, when the cardan bellows get out of date and the dirt/dust amasses inside them their working is deteriorated and it is possible to experience a noise when they are in torsion. To verify 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 cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Toyota Avalon, don’t hesitate to consult this document.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Toyota Avalon 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 case, the parts that may have been destroyed 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 verify it, put it under the automobile and apply twists on each of its elements to verify that there is no particular play on one of them, they are meant to endure you quite strongly over their entire travel. Remember to take your vehicle to your technician or swap them if they are involved.
squeaky noise speed bump Toyota Avalon
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you go over a speed bump with your Toyota Avalon, it is possible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause abnormal friction which can generate this squeaking noise. Please remember to verify by passing under your automobile the condition of the paint on your bar which will reveal if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dry and bring on noise, in which case remove them from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last possibility that we can verify together, it is the engine silentblocks, in fact, these silentblocks function as pads/shock absorbers between the engine and the cradle of the automobile, a obvious fatigue of these will create a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise happens when you pass a speed bumps or any holes with your Toyota Avalon. To replace them go to your auto mechanic.
Other speed bump noise Toyota Avalon
If, even though all its assumptions, you still can’t find the source of the noise your Toyota Avalon makes when you pass a speed bump, we recommend you to refer to this content on a loud noise on Toyota Avalon or to visit your technician in order to carry an in-depth check on your Toyota Avalon and find this problem.
