Discovering noises from your automobile regularly is never reassuring, so hearing noises on your Porsche 911 suspensions when you pass a speed bump can be disturbing. This indicator may be a sign of a minor problem as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the origin and take the necessary actions to solve the problem, it is with this aim in mind that we wanted to write this article to support 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 Porsche 911
Check Porsche 911 suspension
If you encounter a suspension noise when you pass a speed bump on your Porsche 911, and it is categorized by a “clack” or cracking, it is highly possible that your suspension block is the origin of it. Indeed, it may be the suspension cups, which, when they are dead, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps that compress the suspensions. To examine if this is the problem 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 replacing them fairly quickly or you may affect other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have looked for for “Porsche 911 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 Indeed, when the cardan bellows get out of date and the dirt/dust amasses inside them their functions is deteriorated and it is possible to experience a noise when they are in torsion.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 circumstances you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Porsche 911, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Porsche 911 passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you vary direction. If this is the situation, the components that may have been affected by regular 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, position it under the vehicle and apply twists on each of its elements 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 vehicle to your auto technician or replace them if they are involved.
squeaky noise speed bump Porsche 911
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you pass a speed bump with your Porsche 911, it is possible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause unusual friction which can cause this squeaking noise. Bear in mind to examine by passing under your vehicle the condition of the paint on your bar which will show if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dry and provoke noise, in which case disassemble them from the cradle and grease them, this should resolve the problem.
Check engine silentblocks
Finally, last case 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 fatigue of these will make 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 Porsche 911. To change them go to your auto mechanic.
Other speed bump noise Porsche 911
If, despite all its assumptions, you still can’t find the origin of the noise your Porsche 911 makes when you pass a speed bump, we advise you to read this content on a loud noise on Porsche 911 or to visit your auto technician in order to carry an in-depth check on your Porsche 911 and identify this problem.
