Finding out noises from your auto regularly is never comforting, so discovering noises on your Chevrolet Avalanche suspensions when you pass a speed bump can be stressful. This symptom may be a sign of a small trouble as well as a warning of a much larger repair to come. In any case, it is important to check the origin and take the necessary actions to resolve the trouble, it is with this goal 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, 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 Chevrolet Avalanche
Check Chevrolet Avalanche suspension
If you notice a suspension noise when you pass a speed bump on your Chevrolet Avalanche, and it is characterized by a “clack” or cracking, it is highly plausible 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 function during small bumps that compress the suspensions. To verify if this is the trouble that worries you, take a dented road and listen to the noise coming from your front axle as you pass over holes. If it is indeed the cups, think of changing them quickly or you may affect other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have searched for “Chevrolet Avalanche 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 Indeed, when the cardan bellows get out of date and the dirt/dust amasses inside them their operation is degraded and it is possible to experience a sound when they are in torsion.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 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 Avalanche, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Chevrolet Avalanche 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 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, put it under the car and apply twists on each of its elements to verify that there is no particular play on one of them, they are meant to resist you quite strongly over their entire travel. Remember to take your vehicle to your technician or replace them if they are involved.
squeaky noise speed bump Chevrolet Avalanche
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 Avalanche, it is plausible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause irregular friction which can create this squeaking noise. Bear in mind to verify by going under your car 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 off from the cradle and grease them, this should fix the trouble.
Check engine silentblocks
Finally, last point that we can verify together, it is the engine silentblocks, in fact, these silentblocks process as pads/shock absorbers between the engine and the cradle of the auto, a evident weakness of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise appears when you pass a speed bumps or any holes with your Chevrolet Avalanche. To swap them go to your auto mechanic.
Other speed bump noise Chevrolet Avalanche
If, even though all its assumptions, you still can’t uncover the origin of the noise your Chevrolet Avalanche makes when you pass a speed bump, we recommend you to read this article on a loud noise on Chevrolet Avalanche or to visit your technician in order to carry an in-depth check on your Chevrolet Avalanche and identify this trouble.
