Finding out noises from your car often is never comforting, so listening noises on your Chevrolet Bolt suspensions when you go over a speed bump can be stressful. This symptom may be a sign of a insignificant issue as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the cause and take the necessary actions to solve the issue, it is with this objective 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 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-noise-chevrolet-bolt

Suspension cracking noise Chevrolet Bolt

Check Chevrolet Bolt suspension

If you notice a suspension noise when you pass a speed bump on your Chevrolet Bolt, and it is categorized by a “clack” or cracking, it is highly possible 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 function during small bumps that compress the suspensions. To check if this is the issue that concerns you, take a dented road and focus on the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of swapping them quickly or you may ruin other parts and have to make more important maintenance.

Check the cardan shaft

If you are here because you have looked for for “Chevrolet Bolt 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 In fact, when the cardan bellows get out of date and the dirt/dust builds up inside them their operation is deteriorated and it is possible to experience a sound when they are in torsion.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 circumstances you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Chevrolet Bolt, don’t hesitate to consult this document.

Check steering hinges/stabilizer bar

Finally, when you experience a suspension noise when your Chevrolet Bolt 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 situation, the parts that may have been affected by normal 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, put it under the automobile and apply twists on each of its elements to check that there is no particular play on one of them, they are supposed to resist you quite strongly over their entire travel. Remember to take your Chevrolet Bolt to your technician or change them if they are involved.

squeaky noise speed bump Chevrolet Bolt

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 Chevrolet Bolt, it is possible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause unusual friction which can cause this squeaking noise. Remember to check by going under your automobile 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 dry and provoke noise, in which case remove them from the cradle and grease them, this should solve the issue.

Check engine silentblocks

Finally, last case 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 car, a noticable weakness of these will create a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise shows up when you pass a speed bumps or any holes with your Chevrolet Bolt. To change them go to your technician.

Other speed bump noise Chevrolet Bolt

If, despite all its assumptions, you still can’t locate the source of the noise your Chevrolet Bolt makes when you pass a speed bump, we encourage you to refer to this content on a loud noise on Chevrolet Bolt or to visit your technician in order to carry an in-depth check on your Chevrolet Bolt and identify this issue.