Finding out noises from your vehicle often is never comforting, so discovering noises on your Toyota Highlander suspensions when you pass a speed bump can be worrying. 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 important to check the origin and take the necessary actions to solve the problem, it is with this goal in mind that we wanted to write this article to support you see more clearly. We will first see the possible explanations 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 Highlander
Check Toyota Highlander suspension
If you encounter a suspension noise when you pass a speed bump on your Toyota Highlander, and it is categorized by a “clack” or cracking, it is highly plausible that your suspension block is the cause 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 Indeed, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps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 problem that concerns you, take a dented road and focus on the noise coming from your front axle as you circulate over holes. If it is indeed the cups, think of replacing them fairly quickly or you may affect other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have researched for “Toyota Highlander 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 Indeed, when the cardan bellows get out of date and the dirt/dust builds up inside them their working is degraded and it is possible to experience a sound when they are in torsion.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 swapping it or them. If you have the feeling that this noise is more like a a loud noise on Toyota Highlander, don’t hesitate to refer to this content.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Toyota Highlander passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you modify direction. If this is your situation, the parts that may have been affected 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, position it under the car and apply twists on each of its components to examine that there is no particular play on one of them, they are supposed to endure you quite strongly over their entire travel. Remember to take your vehicle to your mechanic or replace them if they are involved.
squeaky noise speed bump Toyota Highlander
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 Highlander, 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 generate this squeaking noise. Remember to examine by going under your car the condition of the paint on your bar which will indicate if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dry and provoke noise, in which case take them off from the cradle and grease them, this should resolve the problem.
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 create 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 Toyota Highlander. To swap them go to your auto mechanic.
Other speed bump noise Toyota Highlander
If, despite all its assumptions, you still can’t locate the origin of the noise your Toyota Highlander makes when you pass a speed bump, we recommend you to consult this article on a loud noise on Toyota Highlander or to visit your mechanic in order to carry an in-depth check on your Toyota Highlander and find this problem.
