Experiencing noises from your vehicle often is never comforting, so hearing noises on your Chevrolet Suburban suspensions when you go over a speed bump can be worrying. This symptom may be a sign of a insignificant trouble as well as a warning of a much larger repair to come. In any case, it is essential to check the origin and take the necessary actions to eliminate the trouble, it is with this intention 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 Chevrolet Suburban
Check Chevrolet Suburban suspension
If you notice a suspension noise when you pass a speed bump on your Chevrolet Suburban, and it is characterized by a “clack” or cracking, it is highly plausible that your suspension block is the origin 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 function during small bumps that compress the suspensions. To verify if this is the trouble 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 changing 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 “Chevrolet Suburban 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 Indeed, when the cardan bellows get outdated and the dirt/dust accumulates inside them their functions is deteriorated and it is possible to experience a sound when they are in torsion.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 conditions you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Chevrolet Suburban, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Chevrolet Suburban passes over a speed bumps, it is possible 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 situation, the parts that may have been damaged 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 components to verify that there is no special play on one of them, they are meant to resist you quite strongly over their entire travel. Remember to take your vehicle to your auto technician or replace them if they are involved.
squeaky noise speed bump Chevrolet Suburban
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you go over a speed bump with your Chevrolet Suburban, it is plausible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can provoke this squeaking noise. Bear in mind to verify by passing under your vehicle the condition of the paint on your bar which will reveal if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dry and cause noise, in which case take them out from the cradle and grease them, this should solve the trouble.
Check engine silentblocks
Finally, last case that we can verify together, it is the engine silentblocks, actually, these silentblocks function as pads/shock absorbers between the engine and the cradle of the vehicle, a evident weakness of these will generate 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 Suburban. To swap them go to your mechanic.
Other speed bump noise Chevrolet Suburban
If, even though all its assumptions, you still can’t uncover the origin of the noise your Chevrolet Suburban makes when you pass a speed bump, we encourage you to consult this article on a loud noise on Chevrolet Suburban or to visit your auto technician in order to carry an in-depth check on your Chevrolet Suburban and determine this trouble.
