Experiencing noises from your automobile regularly is never reassuring, so discovering noises on your GMC Savana suspensions when you go over a speed bump can be worrying. 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 necessary to check the origin and take the necessary actions to resolve the trouble, it is with this intention in mind that we wanted to write this content 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 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 GMC Savana
Check GMC Savana suspension
If you experience a suspension noise when you pass a speed bump on your GMC Savana, 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 role during small bumps that compress the suspensions. To examine if this is the trouble that worries you, take a dented road and focus on the noise coming from your front axle as you pass over holes. If it is indeed the cups, think of changing them fairly quickly or you may damage other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have looked for for “GMC Savana 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 Indeed, when the cardan bellows get outdated and the dirt/dust amasses inside them their working is deteriorated and it is possible to experience a sound when they are in torsion. To examine 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 changing it or them. If you have the feeling that this noise is more like a a loud noise on GMC Savana, don’t hesitate to read this document.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your GMC Savana 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 your situation, the parts that may have been affected by usual wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the origins of your noises, to examine it, place it under the automobile and apply twists on each of its components to examine that there is no particular play on one of them, they are supposed to resist you quite strongly over their entire travel. Keep in mind to take your GMC Savana to your auto mechanic or replace them if they are involved.
squeaky noise speed bump GMC Savana
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you go over a speed bump with your GMC Savana, it is plausible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can generate this squeaking noise. Keep in mind to examine by going under your automobile 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 dried out and create noise, in which case take them off from the cradle and grease them, this should solve the trouble.
Check engine silentblocks
Finally, last point that we can examine together, it is the engine silentblocks, in fact, these silentblocks process as pads/shock absorbers between the engine and the cradle of the automobile, 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 happens when you pass a speed bumps or any holes with your GMC Savana. To replace them go to your auto technician.
Other speed bump noise GMC Savana
If, despite all its assumptions, you still can’t uncover the origin of the noise your GMC Savana makes when you pass a speed bump, we encourage you to consult this article on a loud noise on GMC Savana or to visit your auto mechanic in order to carry an in-depth check on your GMC Savana and determine this trouble.
