Discovering noises from your automobile frequently is never comforting, so discovering noises on your Buick Lucerne suspensions when you pass a speed bump can be worrying. This indicator 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 fundamental to check the source and take the necessary actions to resolve the trouble, it is with this goal in mind that we wanted to write this content 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 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 Buick Lucerne
Check Buick Lucerne suspension
If you notice a suspension noise when you pass a speed bump on your Buick Lucerne, and it is categorized by a “clack” or cracking, it is highly possible that your suspension block is the cause of it. Indeed, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small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 pay attention to the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of swapping them fairly 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 “Buick Lucerne 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 working is degraded 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 make a turn at low speed. If it cracks in these two cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Buick Lucerne, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Buick Lucerne passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Simply like the gimbals, the steering part is mobilized when you vary direction. If this is the case, the components that may have been destroyed by normal 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 particular play on one of them, they are meant to resist you quite strongly over their entire travel. Please remember to take your Buick Lucerne to your mechanic or replace them if they are involved.
squeaky noise speed bump Buick Lucerne
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you pass a speed bump with your Buick Lucerne, 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. Keep 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 possible point, 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 point that we can verify together, it is the engine silentblocks, in fact, these silentblocks act as pads/shock absorbers between the engine and the cradle of the automobile, a obvious fatigue of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise occurs when you pass a speed bumps or any holes with your Buick Lucerne. To swap them go to your auto mechanic.
Other speed bump noise Buick Lucerne
If, despite all its assumptions, you still can’t find the source of the noise your Buick Lucerne makes when you pass a speed bump, we recommend you to refer to this article on a loud noise on Buick Lucerne or to visit your mechanic in order to carry an in-depth check on your Buick Lucerne and identify this trouble.
