Finding out noises from your automobile regularly is never reassuring, so discovering noises on your Chevrolet Impala 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 essential to check the source and take the necessary actions to resolve the problem, it is with this aim in mind that we wanted to write this article to help 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 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 Chevrolet Impala
Check Chevrolet Impala suspension
If you experience a suspension noise when you pass a speed bump on your Chevrolet Impala, and it is characterized 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 check if this is the problem that worries you, take a dented road and focus on the noise coming from your front axle as you go over holes. If it is indeed the cups, think of replacing them quickly or you may damage other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have researched for “Chevrolet Impala 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 Indeed, when the cardan bellows get out of date and the dirt/dust amasses inside them their working is degraded and it is possible to experience a noise when they are in torsion.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 make a turn at low speed. If it cracks in these two situations you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Chevrolet Impala, don’t hesitate to refer to this content.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Chevrolet Impala 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 destroyed 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 check it, position it under the vehicle and apply twists on each of its elements to check that there is no special play on one of them, they are expected to endure you quite strongly over their entire travel. Keep in mind to take your vehicle to your auto mechanic or change them if they are involved.
squeaky noise speed bump Chevrolet Impala
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 Chevrolet Impala, it is possible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause unusual friction which can provoke this squeaking noise. Keep in mind to check by going under your vehicle 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 provoke noise, in which case take them out from the cradle and grease them, this should eliminate the problem.
Check engine silentblocks
Finally, last point that we can check together, it is the engine silentblocks, actually, these silentblocks work as pads/shock absorbers between the engine and the cradle of the automobile, 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 happens when you pass a speed bumps or any holes with your Chevrolet Impala. To swap them go to your auto mechanic.
Other speed bump noise Chevrolet Impala
If, despite all its assumptions, you still can’t find the source of the noise your Chevrolet Impala makes when you pass a speed bump, we suggest you to consult this content on a loud noise on Chevrolet Impala or to visit your auto mechanic in order to carry an in-depth check on your Chevrolet Impala and determine this problem.
