Experiencing noises from your car regularly is never comforting, so hearing noises on your Scion tC suspensions when you pass a speed bump can be stressful. This symptom may be a sign of a insignificant trouble as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the origin and take the necessary actions to solve the trouble, it is with this intention in mind that we wanted to write this document to help you see more clearly. We will first see the possible explanations for a crack when the speed bump passes, then, what can be the cause 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 Scion tC
Check Scion tC suspension
If you notice a suspension noise when you pass a speed bump on your Scion tC, and it is characterized by a “clack” or cracking, it is highly plausible that your suspension block is the cause of it. In fact, 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 trouble that concerns 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 fairly quickly 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 “Scion tC 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 builds up inside them their functions 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 situations you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Scion tC, don’t hesitate to visit this document.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Scion tC passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Exactly like the gimbals, the steering part is mobilized when you change direction. If this is the case, the components 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 causes of your noises, to verify it, position it under the automobile and apply twists on each of its elements to verify that there is no special play on one of them, they are expected 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 Scion tC
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you pass a speed bump with your Scion tC, it is plausible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause irregular friction which can provoke this squeaking noise. Please remember to verify by going under your automobile 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 dried out and create noise, in which case take them out from the cradle and grease them, this should resolve the trouble.
Check engine silentblocks
Finally, last possibility that we can verify together, it is the engine silentblocks, in fact, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the car, a pronounced fatigue of these will make 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 Scion tC. To replace them go to your mechanic.
Other speed bump noise Scion tC
If, despite all its assumptions, you still can’t locate the origin of the noise your Scion tC makes when you pass a speed bump, we recommend you to consult this content on a loud noise on Scion tC or to visit your mechanic in order to carry an in-depth check on your Scion tC and identify this trouble.
