Experiencing noises from your vehicle frequently is never reassuring, so listening noises on your Chevrolet Cobalt suspensions when you pass a speed bump can be disturbing. This sign may be a sign of a minor problem as well as a warning of a much larger repair to come. In any case, it is fundamental to check the origin and take the necessary actions to correct the problem, it is with this objective in mind that we wanted to write this content to help you see more clearly. We will first see the possible causes 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 Chevrolet Cobalt
Check Chevrolet Cobalt suspension
If you notice a suspension noise when you pass a speed bump on your Chevrolet Cobalt, and it is categorized by a “clack” or cracking, it is highly possible that your suspension block is the origin of it. Indeed, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its role during small bumps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 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 replacing 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 researched for “Chevrolet Cobalt 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 old and the dirt/dust builds up inside them their operation 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 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 Cobalt, don’t hesitate to read this article.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Chevrolet Cobalt passes over a speed bumps, it is plausible 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 case, 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 causes of your noises, to verify it, position it under the vehicle and apply twists on each of its elements to verify that there is no special play on one of them, they are supposed to resist 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 Cobalt
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you pass a speed bump with your Chevrolet Cobalt, it is possible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can create this squeaking noise. Please remember to verify by passing under your vehicle the condition of the paint on your bar which will tell us if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dried out and bring on noise, in which case remove them from the cradle and grease them, this should fix the problem.
Check engine silentblocks
Finally, last point that we can verify together, it is the engine silentblocks, actually, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the vehicle, a obvious weakness of these will create a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise comes up when you pass a speed bumps or any holes with your Chevrolet Cobalt. To replace them go to your mechanic.
Other speed bump noise Chevrolet Cobalt
If, even though all its assumptions, you still can’t locate the source of the noise your Chevrolet Cobalt makes when you pass a speed bump, we advise you to read this article on a loud noise on Chevrolet Cobalt or to visit your auto mechanic in order to carry an in-depth check on your Chevrolet Cobalt and find this problem.
